Friday, November 30, 2007

Cruise ship sails into storm over whitening botch

From the Times Online


A woman’s teeth looked as though they had been dipped in acid after she had whitening treatment aboard a cruise ship, a dentist said yesterday.

Carla Regan, 47, was on a two-week cruise in the Eastern Mediterranean with her husband and two children when she decided to treat herself to the £130 treatment. But she was left with yellowing, easily stained and dry teeth after a chemical typically used for disinfecting swimming pools stripped away the top layer of tooth enamel on her front eight teeth. The treatment, using chlorine dioxide, was of a kind increasingly being offered to consumers wishing to brighten up their smile, despite evidence that it causes harm. Mrs Regan is now facing a £5,000 bill to restore her mouth’s appearance.

The General Dental Council has determined that only a registered dentist can carry out teeth whitening, yet the cruise ship treatment was provided by beauticians in an onboard spa, with no dentist even to supervise, she said.

Mrs Regan said yesterday: “The beauty salon on the ship was offering teeth whitening and I thought to myself, why not? It seemed like an appropriately indulgent thing to do on holiday – they promoted it as nontoxic and safe. However, a week later I noticed my teeth were starting to look stained, and with time they only got darker. I also constantly had a ‘dry mouth’ feeling, so I decided to see a dentist to tell me what could be wrong.”

Mrs Regan declined to name the cruise operator involved as she has lodged a formal complaint against the company.

“I had never considered whitening procedures before, and on the ship I had no chance to do any research into the treatment,” she said. “I thought it would be perfectly safe, but in the end it permanently damaged my teeth.”

James Goolnik, a dentist and vice-president of the British Academy of Cosmetic Dentistry, said he was shocked at the surface harm on Mrs Regan’s teeth. “Her teeth look like they had been dipped in acid,” he said. “It may not be immediately visible to the untrained eye, but her front teeth clearly have no surface shine when compared with the rest of her teeth. The damage is permanent and we are currently assessing whether repair will involve more complex cosmetic procedures, such as bonding or porcelain veneers.” Despite a lack of clinical evidence or official trials that justify the use of chlorine dioxide on teeth, the chemical is being offered as an alternative to hydrogen peroxide treatments by a growing network of franchises around the country.

Its use has caused problems in other patients, including 23-year-old Stephanie Ramezan, whose teeth were left darkened after a session at a City spa, as The Times reported in February.

Dr Goolnik said: “The rise in these problem cases illustrates why dental care, even purely cosmetic procedures, should only be provided by dentists with the proper training.”

Thursday, November 29, 2007

Lantis Laser Wins Coveted Popular Science Magazine Award

Company’s Breakthrough Optical Coherence Tomography (OCT)
Dental Imaging System™ Named in “Best of What’s New” 2007

Denville, N.J. – November 29, 2007 – Lantis Laser Inc. (Other OTC: LLSR.PK - News) (http://www.lantislaser.com), a New Jersey-based company specializing in the commercialization of advanced dental technology, recently won a Popular Science Magazine 2007 Best of What’s New award for its newly developed Optical Coherence Tomography (OCT) Dental Imaging System™. Lantis’ proprietary OCT System is a diagnostic aid that provides real-time, high-resolution chairside imaging of dental tissue for the early detection of tooth decay and other oral diseases.

”For 20 years, Popular Science’s Best of What's New awards have honored the innovations that make a positive impact on life today and change our views of the future,” says Mark Jannot, Editor-in-Chief of Popular Science. “PopSci’s editors evaluate thousands of products each year to develop this thoughtful list; there’s no higher accolade Popular Science can give.”

Lantis Laser’s OCT Dental Imaging System™, which is scheduled to launch in August 2008, was a winner in the Personal Health Category because it provides up to 10 times the resolution of a standard x-ray, which enables much earlier detection of tooth decay than is currently possible. Importantly, unlike x-rays, which emit harmful radiation, the OCT Dental Imaging System™ utilizes an innovative, safe, non-invasive light that is passed over the tooth surface using a small, pen-like handheld scanner to capture images of the teeth. It can be used safely on children (and pregnant women), enabling the dentist to diagnose and implement a program to safeguard the oral health of mother and child alike.

“We’re very pleased and honored to be recognized by the editors of Popular Science Magazine,” said Lantis President & CEO Stan Baron. “Up to this point, the support and interest among dental professionals and the dental trade media have been extremely positive. However, Popular Science Magazine’s Best of What’s New award validates on a larger scale how the capture of reflected light can immediately and accurately reveal on a chairside monitor the earliest stages of cavities, gum disease, and microstructural deficiencies. Lantis Laser’s OCT Dental Imaging System™ will give the dental profession a significant upgrade in chairside dental imaging as it meets important diagnostic needs and helps the dentist provide a much safer and superior level of care than what is now available.”

BrytonPick


Not all things new have to be high tech. Here is a cool new device I saw at the GNYDM for getting food out from between teeth. Click on the link for more information.


BrytonPick is a cool and hygienic solution for discreet and effective removal of food from between teeth. It is a string-free, portable and reusable dental space cleaner, a great floss substitute for on-the-go. Designed to be used by Teens, Adults and Seniors after every meal anywhere and anytime.

• Use requires one hand only, no mirror or water therefore it can be used in a restaurant, car, office, school, home, etc.
• Flexible stainless steel edges makes BrytonPick germ resistant and re-usable for up to 30 days
• Between uses cleanse with tissue, napkin or hot water
• Plastic holder comes in 7 different colors
• BrytonPick is stored in a credit card size carrying pouch
that fits into any wallet
•BrytonPick will replace all unhygienic improvised tools used to remove food debris from between teeth such as: paper clips, hair, business cards, finger nails, pens or worse!
• BrytonPick is also FDA registered, Pre-Sterilized and 100 % Made in USA (QS-9000 / ISO9001 Certified)

Wednesday, November 28, 2007

Humanoid robot teaches dentists to feel people's pain


A group of robot and computer makers presented the high-tech dental patient in Tokyo at the 2007 International Robot Exhibition, a four-day technology showcase that opened Wednesday.

The medical simulation robot, named "Simroid," is designed to be used for clinical training at dental schools, said Tatsuo Matsuzaki, an official at robot maker Kokoro Company Ltd., which developed the body and control system.

The 160-centimeter (five-foot-three) robot can say "it hurts" and frown when it feels uncomfortable from the dental drill.

"Because it's so real, dental trainees can see patients' feelings and will be able to develop good skills as they treat it, not as an object, but as a human being," Matsuzaki said.

Read more on the Phyorg web site

Tuesday, November 27, 2007

EWOO Technology CBCT, Pan, Ceph


One of the larger booths at the GNYDM was from Ewoo Technology. They were displaying a number of imagining products including the Picasso Trio which is a CBCT, Panoramic, Cephlametric unit. You can get the unit without the Cephlametric. The images looked good and they were offering $20K discount with the trade in of your old Panorex machine. The EzImplant 3D software looked easy to use and the images were very good.

Check out more and the videos on the EWoo Technology website.

Sunday, November 25, 2007

GNYDM

A busy day at the Greater NY Meeting. Not a lot of new things to report on but I will post some things when I get the chance this week. It does look like the Chicago Mid-Winter meeting should produce some new equipment announcements.
Marty

Saturday, November 24, 2007

Good For Business

Wondering around NYC. Hershey is on one side of the street and M&M is on the other.

Just what a dentist needs for patients... More candy!

Greater NY Dental Meeting

I just checked into my hotel room with a nice view of Time Square. Above the Discover sign is where the ball drops to ring in the New Year.

The Greater New York Dental Meeting starts tomorrow. I will be on the floor all day checking out the latest gadgets. A full report in the next few days.

Marty

Dentist kicks late patient off NHS register

Here is my 500th post to the blog. I never thought that I would be doing this almost daily. This is a fun post. Something we have all experienced in our practices. Make sure you click the link and read the comments after reading the conclusion of the article. Marty

Here is a great article about a patient turning up late. The best part is the comments after the article . Read the whole article on the Scotsman.com website and enjoy all the puns that people wrote in the comments section.

A WOMAN was de-registered by her NHS dentist because she was 15 minutes late for an appointment. Now the Scottish Public Services ombudsman has upheld her complaint against Marchmont Dental Care.

Since the complaint, the practice has changed its procedures so patients will be warned in advance and not de-registered after just one late appointment.

The incident came after the practice had suffered repeated problems with new patients failing to turn-up for appointments.

The ombudsman, Professor Alice Brown, said the woman, referred to only as Mrs C, had arrived 15 minutes late for a 35-minute appointment to mend a broken tooth in January.

She told the ombudsman she had been late for reasons outwith her control - she was caught in traffic on her way to the dentist's because of a road accident.

The patient claimed that after being de-registered, she was then forced to spend several weeks trying to find a new dentist and could not be treated before July.

Friday, November 23, 2007

A 4-Year Prospective Clinical and Radiological Study of Maxillary Dental Implants Supporting Single-Tooth Crowns Using Early and Delayed Loading Proto

Ilser Turkyilmaz DDS, PhD, Mehmet Avci DDS, PhD, Serkan Kuran DDS, Esma Nida Ozbek DDS (2007)
A 4-Year Prospective Clinical and Radiological Study of Maxillary Dental Implants Supporting Single-Tooth Crowns Using Early and Delayed Loading Protocols
Clinical Implant Dentistry and Related Research 9 (4), 222–227.
doi:10.1111/j.1708-8208.2007.00045.x


Background: Recent studies have showed that immediate/early loading of dental implants is a clinically feasible concept with results similar to those for standard two-stage procedures, especially in the mandible. However, there are only a few studies regarding the immediate/early loading of maxillary implants supporting single-tooth crowns.

Purpose: The aim of this study was to compare the clinical and radiological outcomes of early- and delayed-loaded dental implants supporting single-tooth crowns in the maxilla.

Materials and Methods: Twenty-nine patients were consecutively treated between 2000 and 2002 with 59 Brånemark System MK III TiUnite implants (Nobel Biocare AB, Göteborg, Sweden) in the maxilla. Two groups were formed according to the loading protocols. In the test group, definitive implant-supported single crowns were delivered to 19 patients 6 weeks after the implant placement. In the control group, definitive implant-supported single crowns were delivered to 10 patients 6 months after the implant placement. Clinical and radiographic parameters were recorded at baseline, 1 to 4 years. Implant stability measurements have only been performed at 4-year follow-up recall.

Results: Overall, three implants were lost during the study period. Two implants were lost in the test group including 36 implants, which indicated a survival rate of 94.4%. One of the lost implants was replaced and then osseointegrated successfully. One implant was lost in the control group during the healing period, which indicated a survival rate of 95.7%. The average marginal bone loss was 1.11 mm for 56 implants after 4 years. There were no significant differences in marginal bone levels, insertion torque, and resonance frequency values between the two groups.

Conclusion: The results of this study indicate that 6 weeks of early loading period for TiUnite-surface titanium implants in the maxilla is reliable and predictable for this patient population and may offer an alternative to the standard loading protocol.

Thursday, November 22, 2007

Happy Thanksgiving

I hope everyone in the USA enjoys a wonderful Thanksgiving Day with their family. I am especially thankful for the men and women of our country’s arm forces and their families and friends who know sacrifice first hand. Travel safe and don't eat too much.

See some of you at the Greater NY Dental Meeting this weekend.

Marty

Wednesday, November 21, 2007

Health and Disability Natural teeth and cognitive function in humans

MAUD BERGDAHL, REZA HABIB, JAN BERGDAHL, LARS NYBERG, LARS-GÖRAN NILSSON (2007)
Natural teeth and cognitive function in humans
Scandinavian Journal of Psychology 48 (6), 557–565.
doi:10.1111/j.1467-9450.2007.00610.x

A number of neurobiological, psychological and social factors may account for cognitive impairment. In animal studies a relation between dental status and cognitive performance has been found. It is unclear whether such a relation exists for humans. In a first step we compared the performance of 1,351 participants (53% women, 47% men; age M = 54.0) with natural teeth to 487 edentulous participants (59% women, 41% men; age M = 71.3) on 12 cognitive tests. The natural teeth group had a lower mean age, fewer women, more years of education, higher mini-mental state (MMSE), and performed significantly higher on several cognitive tests. In a subsequent analysis, the cognitive performance of a subset of the participants (50–85 years) was examined. In this analysis, 211 had natural dentition and 188 were edentulous. The groups were matched for gender, age, social variables, diseases, stress and MMSE. The cognitive disadvantage of the edentulous group was still apparent. The results suggest that functional natural teeth relate to relatively preserved cognitive functioning in older age.

Tuesday, November 20, 2007

Technology has extracted much of the pain from dental work.

I saw this article in my local newspaper. I use the newer version of the wand called the STA (Single Tooth Anesthesia) and like it very much.

Posted by the Asbury Park Press on 11/20/07

BY MICHAEL RILEY
STAFF WRITER


Zaire Riley of Long Branch was about to get a tooth pulled last week. And the 10-year-old in the dentist's chair had a big smile on his face.

Someone asked him if he was scared.

"No," he said.

His mother, Mirta Colbert, was right by his side at the Monmouth Medical Center Dental Clinic in Long Branch. She's not afraid of a trip to the dentist either, she says.

And that's a good thing. Anxious parents have a way of passing along that anxiety to their kids, says Dr. Michelle Ziegler, program director for the Dental Residency at Monmouth Medical Center.

The way to overcome a fear of the dentist is never to have that fear in the first place, she says.

"If those first and second trips to the dentist are pleasant experiences," she says, "then fear doesn't have to be a part of it."

Nevertheless, some people still get scared.

Dr. Robert McTaggart, attending and faculty dentist at Monmouth Medical Center, says that studies say the number of people afraid of a visit to the dentist has come down, but . . .

"Somewhere between 12 to 17 percent of people describe themselves as "very anxious' when facing the prospect of sitting in that chair. I've had to talk patients in from the parking lot," he says.

Ziegler understands where that fear comes from.

There's the pain factor, she says.

And then the procrastination factor — "people sometimes keep putting off the trip to the dentist," she says.

You put those together long enough, Ziegler says, and then people are afraid to go the dentist because they are worried that the dentist is going to scold them for not having come in sooner.

At that point, she says, "there's definitely an embarrassment factor." But a lot of that fear is misplaced, dentists say.

"Things have come a long way," Ziegler says. "For one thing, our hand pieces are a lot faster now."

"Hand pieces" is dentist talk for drills.

The faster those instruments spin, she explains, the less likely patients in the chair are to feel pain.

And if it is the very sound of the drills that sets patients' nerves askew, well, the drills are getting quieter.

"The electric drills are almost silent," says McTaggart, who is in private practice at General Dentistry and Advanced Dental Sedation, both of Toms River. Even given the more efficient drills, some of them moving at up to 300,000 rpm, the numbing medicines have improved, he says, providing more efficient ways to block pain signals from getting to the brain.

And so have the instruments used to inject the medicine.

"We have what's called "The Wand' — it doesn't even look like a syringe," Ziegler says. "It's a way to provide a slow, consistent injection that is less painful. Dentists use them especially, but not always, for children."

Zaire got what the dentists called his "tooth sleep juice" with just such a wand.

All of that, though, is not enough to calm some people down. This is why the phenomenon of sedation dentistry is gaining in popularity.

It's not quite accurate to say that sedation dentistry "knocks patients out" says Sally-Jo Placa, chairman of the Department of Dentistry at Jersey Shore University Medical Center in Neptune and in private practice in Woodbridge.

"It is not general anesthesia," says Placa.

Dentists need special training and special permits to administer either type of sedation — a pill or an IV drip."

Patients can still respond to commands, she says, and generally have little or no memory of the event.

Sedation is used on apprehensive patients, the disabled and those facing complex procedures, such as having all four wisdom teeth out at once.

McTaggart says that about 15 percent of his patients request sedation dentistry, which mirrors the percentage of Americans nationwide who are very nervous about a dentist poking around their mouths.

"Dentists really invade your personal space," Placa says. "But as a dentist, it is never my intention to cause you pain. It's easier for me to work on you if you're not in pain."

As for scolding patients who have neglected their dental health, she doesn't do it, she says.

"Some dentists feel that with some patients with whom they've developed a relationship, scolding might be a way of motivating them," she says. "But we know who's not flossing."

Fear of the dentist might not be a thing of the past, but it's getting there, says McTaggart.

"Teeth are getting better," he says. "With fluoride, better education and more diligent parents, people have less reason to be anxious now."

EDITOR'S NOTE: Zaire Riley is not related to the author of this article, Michael Riley.

Monday, November 19, 2007

AFP Imaging Corporation Receives Canadian Government License to Market Newtom(TM) VG 3D Cone Beam Computed Tomography Scanner

I don't have a NewTom but do have one of their EVA sensors...MJ

AFP Imaging Also Receives a Prestigious 'Technology Impact Award' for its EVA(TM) and EVA+(TM) Digital Dental Sensors

ELMSFORD, N.Y.--AFP Imaging Corporation (OTCBB: AFPC.OB ) announced today that it has been granted a medical device license from Health Canada, the federal regulator of drugs and health products, to market the company’s NewTom™ VG 3D Cone Beam Computed Tomography (CBCT) Scanner in Canada. The NewTom VG provides clinicians with detailed three-dimensional, radiographic images of the teeth and jaws while allowing patients to stand, sit, or remain in their wheel chairs while being scanned. The unit’s small footprint makes it ideal for in-office examinations when space is limited. The primary applications are for diagnosis and treatment planning in dentistry and otolaryngology (ENT), including dental implants, orthodonture, and maxillo-facial surgery, as well as ear, sinus, and airway imaging.


NewTom VG uses the same technology and proprietary software as AFP Imaging’s NewTom™ 3G, which provides a horizontal support table to accommodate elderly, infirm or trauma patients and children. AFP Imaging is the only CBCT scanning supplier to provide both vertical and horizontal configurations of this exciting technology for dental and ENT markets. The products are manufactured by AFP Imaging’s wholly owned subsidiary, Quantitative Radiology, srl (QR) in Verona, Italy.

Gary Lee, Executive Vice President, Sales and Marketing of Genexa Medical Inc., the exclusive Canadian distributor for NewTom VG and NewTom 3G, said, "We are extremely excited that Health Canada has approved the latest 3D CBCT scanner from the company that actually invented cone beam scanning. The NewTom VG is a culmination of the key advances of previous generations of NewTom scanners. It produces images with better resolution, contrast and clarity in a package whose footprint is no larger than a traditional panoramic X-ray scanner.”

AFP Imaging Receives ‘Technological Impact Award’

AFP Imaging also announced that Polytechnic University’s Center for Advanced Technology in Telecommunications (CATT) presented the company with a prestigious “Technology Impact Award” for successfully commercializing CATT research in the company’s EVATM line of digital dental sensors. The award was given at Polytechnic University in Brooklyn on November 8, 2007. CATT’s mission is to assist New York State companies with basic research that companies can apply commercially.

EVA digital dental systems expose patients to significantly less radiation than film X-rays, but “low radiation produces only a low level of signal per pixel. The rest of what you get is noise,” explains Jim Johnson, Director of Engineering at AFP Imaging. The challenge AFP Imaging faced was to get the clearest image while using the smallest amount of radiation as possible. To improve the process, AFP Imaging collaborated with Professor Ivan Selesick of CATT. “Dr. Selesick’s research team developed an algorithm to recognize the geometry and movement of the signals, pick out the relevant signals, and ignore the noise,” notes Mr. Johnson. “Now, EVA sensors are clearly the clearest digital dental sensors on the market.”

For additional information about AFP Imaging and its products, please visit www.afpimaging.com, www.dent-x.com and www.newtomdental.com.

Sunday, November 18, 2007

Back From El Paso



I spent the past few days in El Paso, Texas with Paul Feuerstein doing a Dental Technology Solutions lecture for the Thunderbird Dental Study Club. The lecture was in the beautifully restored Plaza Theater. We had a very nice visit and got through a lot of information in a very limited time. We also made a short dash across the border into Juarez Mexico. A place like many with a dentist on every corner.

So if your group is looking for a Technology CE event check out the DTS web site
www.dentaltechnologysolutions.com

Saturday, November 17, 2007

Erase Your Office Hard Drive


Are you upgrading computers and worried about HIPPA? Then this little device maybe what you are looking for. WiebeTech's newest hardware solution completely erases all data from a hard drive quickly and easily. Stand-alone operation. No computer required! Faster than software.

More at the WiebeTech web site

Friday, November 16, 2007

Why some people's teeth crack while others stay strong

By Chris Emery | Sun reporter
November 15, 2007

The closest thing China has to a tooth fairy might be Dwayne Arola, an engineering professor from the University of Maryland, Baltimore County who has a thing for Asian choppers.

Not long ago, Arola returned from a trip to Shanghai with a plastic lunch box containing a dozen prime specimens from Chinese dental patients - large, cavity-free wisdom teeth - destined to endure a regimen of abuse that he once reserved for aircraft parts.

How the Chinese molars hold up under Arola's stress tests may explain why Chinese teeth are more brittle than American teeth. Ultimately, that knowledge might lead to a dental Fountain of Youth: a high-tech process to make old teeth young again, and less prone to cracking under pressure.

Read the entire article on the Baltimore Sun web site

Thursday, November 15, 2007

UCLA dentist school scandal

Cheating on licensing exams is probed, and a highly competitive program is accused of giving preferential treatment in admissions.
By Louis Sahagun, Los Angeles Times Staff Writer
November 14, 2007
The UCLA School of Dentistry was hit by separate scandals Tuesday involving allegations of favoritism toward relatives of deep-pocket donors and student cheating on licensing examinations, university authorities acknowledged.

The American Dental Assn. is investigating allegations of cheating by at least a dozen UCLA students as well as students from USC, Loma Linda University and New York University, UCLA officials said. The students were alleged to have improperly obtained questions to a test that is a step toward fulfilling qualifications for a license to practice dentistry.

"The ADA is looking into alleged improprieties by UCLA students associated with testing," said Lawrence Lokman, UCLA's assistant vice chancellor of communications. "We would certainly hope any ADA investigation provides adequate due process to the students, and whatever matter they are looking at would be resolved quickly and fairly."

A detailed account of alleged preferential treatment given large financial donors to the dental school's highly competitive orthodontics residency program appeared in Tuesday's edition of the Daily Bruin, the campus newspaper. There are about only six positions offered each year in the residency program, and the positions are highly sought because careers as orthodontic specialists can be lucrative.

It was not the first time the university has been accused of favoring major donors and other influential people with VIP admission treatment. In 1996, The Times published a five-part series that underlined how seeking generous donors had become a "team sport," in the words of one UCLA fundraiser.

In the aftermath of The Times series, UCLA officially prohibited influencing admissions with donations.

The Daily Bruin's months-long investigation, coupled with an independent audit conducted this year, has prompted changes in the School of Dentistry's admissions policies and procedures, university authorities said. For example, admission to coveted program positions must now be reviewed by a special admissions panel to resolve potential conflicts of interest.

But No-Hee Park, dean of the School of Dentistry, said in a prepared statement that the program was fair and merit-based.

"While an independent investigation requested by Acting Chancellor Norman Abrams found no credible and convincing evidence to support allegations of a legacy program in the orthodontics admissions process," Park said, "it did provide us with an opportunity to review our admissions policies and procedures and make improvements in the areas of oversight and transparency."

(Abrams was acting chancellor until Gene D. Block assumed the top post at UCLA this summer.)

The Daily Bruin article, which it said was based on examinations of hundreds of pages of e-mails and internal documents, said the program's high admissions standards were relaxed for children or relatives of donors who pledged hefty financial gifts, one as high as $1 million.

Amid a university probe, John Beumer III in February resigned as chairman of the faculty executive committee of the School of Dentistry.

"The selection process for residents in orthodontics amounts to nothing less than an affirmative action program for the wealthy and well-connected," he wrote in a resignation letter posted Tuesday on the Daily Bruin's website. "Preferential treatment has been given to children of donors and students who have worked in the research laboratories of orthodontics faculty."

In an interview Tuesday, he said, "UCLA students in particular have been disadvantaged by this policy. I don't think this represents the best of the university. But I think it will change because, fortunately, this incident has precipitated a review of the issue."

Michael McDonald, a dental school alumnus, agreed, saying in an interview, "It's horrible, just horrible, what's going on."

According to McDonald, a dental school official told him that giving large donors and their relatives an edge in the competitive admissions process was a way to increase revenues.

"When I heard that, I called the office of admissions about it," McDonald recalled, "and the rats started jumping off the ship.

"People should be getting in because of their hard work and qualifications, not because of how much money their mom and dad gave the school," McDonald said. "I studied my brains out, but I would have accomplished nothing under these circumstances because my father worked in a grocery store and our family bank account was empty."

As for the investigation by the American Dental Assn., Lokman declined to elaborate.

However, two members of the School of Dentistry who asked that their names not be used out of fear of retribution, said the alleged cheating involved the sharing of compact discs that contained improperly obtained questions that appear in American Dental Assn.'s National Board Dental Examinations.

"I love UCLA, and I've donated a lot of money to the university," McDonald said. "But I'm distraught. The fact we have some bad apples in the dental school really bothers me."

louis.sahagun@latimes.com
http://www.latimes.com/news/local/orange/la-me-ucla14nov14,1,5609807.story?coll=la-editions-orange

Wednesday, November 14, 2007

Ivoclar Invests In Sirona

Ivoclar Vivadent AG announced today that it has made an investment in Sirona Dental Systems, Inc., one of the world's leading manufacturers of high-technology dental equipment. Sirona's CEREC System today is the world's only CAD/CAM system for chairside dentistry, and their inLab technology is a market leader with dental laboratories. Ivoclar Vivadent is the market leader in all ceramic metal free materials for esthetic dentistry and is a material partner for Sirona's CEREC System and inLab Technology. "This investment represents our commitment to the growth of CAD/CAM systems and our belief that this technology provides benefits to the dental industry, the dental profession and to the patient", said Robert A. Ganley, Chief Executive Officer of Ivoclar Vivadent AG. "Sirona has been a very valuable partner with Ivoclar Vivadent and we look forward to building the growth of CAD/CAM together in the future." CAD/CAM dentistry represents one of the fastest growing sectors of dentistry with expectations for continued rapid growth. "We have had a long lasting relationship with Ivoclar Vivadent and we are very excited about this investment and our mutual success in the future. This year we are celebrating our 20 year anniversary of CEREC and this investment is further evidence of our established success and growth potential", said Jost Fischer, Chairman, President and Chief Executive Officer of Sirona Dental Systems, Inc.

Tuesday, November 13, 2007

MATERIALISE LAUNCHES U.S. LAWSUIT AGAINST NOBEL BIOCARE

Follows Similar Action In Germany Where Court Agreed With Materialise; Contends that “NobelGuide” Drilling Templates Violate Materialise’s Patented “SurgiGuide” Technique



GLEN BURNIE, Md. ; LEUVEN, Belgium (November 12, 2007) --- Materialise N.V. and Materialise Dental N.V., manufacturer of 3D implant planning systems for accurate and predictable treatment planning of dental implants, have launched a U.S. patent infringement lawsuit in the Central District of California against Nobel Biocare, AB and its U.S. subsidiary Nobel Biocare USA. LLC.

Specifically, Materialise contends that Nobel Biocare’s manufacture of “NobelGuide” drilling template violates a Materialise U.S. patent that was issued in 1998 relating to Materialise’s “SurgiGuide” techniques.

The lawsuit in the U.S. is effectively an extension of a similar action in Europe where this past August the District Court of Dusseldorf ordered Nobel Biocare AB and Nobel Biocare Deutschland GmbH to stop offering the NobelGuide drilling templates in Germany, finding that they infringed Materialise’s analogous European Patent No. 0 756 735. This decision, which is preliminarily enforceable, is subject to an appeal of Nobel Biocare pending at the Düsseldorf Court of Appeals. Materialise’s U.S. lawsuit is also a response to a recent Nobel Biocare civil action (also filed in the Central District Court of California) that seeks declaratory judgments that Materialise’s U.S. patent is both not infringed by Nobel Biocare’s products and is invalid.



Bart Swaelens, CEO of Materialise Dental, said:

"With this lawsuit, we are protecting our technology. Our “SimPlant” software was launched in 1991, and was followed by our “SurgiGuide” drill guides in 1999. The introduction of NobelGuide by Nobel Biocare, on the other hand, did not occur until 2005. "

Materialise Dental has been promoting Computer Guided Implantology for many years, and our products, based on extensive Research & Development, have greatly contributed to the success of the implant dentistry field.

Fortunately, the German court agreed that Nobel Biocare was infringing on our European patent, and we’re now hopeful that the U.S. courts will follow suit.

The Evolution Of SurgiGuide
Dental drill guides transfer surgical implant planning to the actual surgery. The litigations in the U.S. and in Germany concern methods for making medical models, including guides for dental surgery, which involve the use of grey value images and rapid prototyping.

Over the last decade, Materialise Dental has gathered considerable clinical experience in this area. Research yielded groundbreaking results leading to the 1999 introduction of the first (bone-supported) version of SurgiGuide. This was followed in 2001 by a SurgiGuide version for zygomatic implants, in 2002 by a mucosa-supported SurgiGuide, and in 2003 by a tooth-supported SurgiGuide version. Dental experts and opinion leaders in the industry were well aware of the development of the SurgiGuide drill guides, which were presented at open conferences for clinicians.



Timeline

* April 19, 1994 – Materialise files its first patent application (in Belgium) for a “Method for Making a Perfected Medical Model on the Basis of Digital Image Information of a Part of the Body,” followed in April, 1995, by patent applications in the European Patent Office and the United States. Materialise Dental subsequently releases SurgiGuide drill guides in 1999.
* June 16, 1998 – Materialise is awarded a U.S. Patent (No. 5,768,134) for same method as above.
* August 5, 1998 – Materialise is awarded a European Patent (No. 0.756,735) for the same method as above.
* June 5, 2005 – Nobel Biocare launches its NobelGuide product.
* November 23, 2006 – Materialise files a patent infringement action asserting its European patent No. 0 756 735 against Nobel Biocare in the Dusseldorf District Court (Germany).
* June 25, 2005 - Nobel Biocare files a nullity action in Germany against the German part of EP 0 756 735 (pending)
* July 24, 2007 – Nobel Biocare files a request to stay the German infringement action. The Dusseldorf Court denies this request.
* August 3, 2007 – Nobel Biocare files a declaratory judgment civil action in the Central District of California seeking a declaration of patent non-infringement and/or invalidity of Materialise’s U.S. patent, and a declaration of authorization to produce by a patent licensee.
* August 14, 2007 – The District Court of Dusseldorf rules that Nobel Biocare is indeed infringing on Materialise’s European patent No. 756 735 by its unauthorized use of a method for producing guides for dental implant surgery.
* September 28, 2007 – Nobel Biocare files an appeal against the decision of the District Court of Düsseldorf with the Düsseldorf Court of Appeals (pending)
* October 15, 2007 – Materialise files a counterclaim for U.S. patent infringement against Nobel Biocare AB and Nobel Biocare USA in the Central District Court of California.

About Materialise Dental



Materialise Dental focuses on 3D Digital Dentistry and offers a range of products and services to aid dental professionals in the treatment of their patients. Materialise Dental is the manufacturer of SimPlant and SurgiGuide internationally. SimPlant software, one of the most recognized names in computer guided surgery, is the world's first interactive 3D implant planning system for the most accurate and predictable treatment planning of dental Implants. As the industry leader, SimPlant software is available in six different languages and is utilized by thousands of clinicians all over the world.

Materialise Dental is one of the independent market leaders in dental implantology simulation software and one of the worldwide leaders in medical modeling technology. Materialise Dental provides surgeons with the most detailed and precise virtual 3D models available. Clinicians around the world use medical models and templates created by Materialise Dental software to assist them in the most complex surgical cases. Materialise Dental is a trusted partner worldwide for the largest hospitals and research institutions.

Materialise Dental is based in Leuven, Belgium, with its U.S. operation headquartered in Glen Burnie, Md.

Monday, November 12, 2007

Patients' self-perceived impacts and prosthodontic needs at the time and after tooth loss.

Teófilo LT, Leles CR.

Department of Prevention and Oral Rehabilitation, School of Dentistry, Federal University of Goiás, Goiânia, GO, Brazil. Braz Dent J. 2007;18(2):91-6

Studies on self-perception have demonstrated that tooth loss is associated with esthetic, functional, psychological and social impacts for individuals. However, not all subjects seek treatment immediately after tooth loss, even when desire for replacement is strongly expressed. The aim of this study was to evaluate the perception of patients submitted to tooth extraction about factors associated with tooth loss and prosthodontic treatment, at the time and after extraction. A convenience sample of 211 consecutive patients were clinically evaluated and answered to a questionnaire about perceived impacts and prosthodontic treatment needs. Data were collected at the time of extraction and after a 3-month time interval. Perceived impacts were high (21 to 76% at the time and 35 to 87% after extraction). From 72.5% patients who expressed intention of immediate replacement of edentulous spaces, only 8.1% had actually been treated. Financial limitation was considered the most important factor that restricted access to treatment. Bivariate statistical analysis showed association between immediate dental replacement and anterior tooth loss (p=0.00) and extension of edentulous space (p=0.01). Position of lost teeth was associated to perceived functional limitation (p=0.03). Worsened appearance was associated to tooth loss in the maxillary arch (p=0.02), and desire of prosthodontic treatment was associated to the extension of edentulous space (p=0.05). Perceived impacts were more frequent in women than men. It was concluded that although patients usually expressed prosthodontic treatment needs, clinical and financial issues are determinant factors for tooth replacement.

Sunday, November 11, 2007

Lantis Laser's OCT System Addressing Increase in Tooth Decay

DENVILLE, N.J., Nov. 6, 2007 (PRIME NEWSWIRE) -- Lantis Laser (Pink Sheets:LLSR) (http://www.lantislaser.com) is developing its proprietary optical coherence tomography (OCT) Dental Imaging System(tm) to address early detection of decay that will enable dentists to detect demineralization, the first sign of decay at an early stage. Early decay can be treated non- or minimally invasively with less cost, trauma and time. Lantis' OCT System images at up to 10 times the resolution of x-ray, giving the dentist an advanced diagnostic capability. Unlike x-ray, OCT emits no harmful radiation as it employs safe, high-intensity light.

As reported on the front page of the New York Times on October 11, 2007, previously unreleased figures from the Centers for Disease Control and Prevention show that in 2003 and 2004, the most recent years with data available, 27% of children and 29% of adults had cavities going untreated. The level of untreated decay was the highest since the late 1980s and significantly higher than that found in a survey from 1999 to 2002.

"These figures clearly indicate that tooth decay, which is the leading cause of tooth loss, continues to be a disease of concern," commented Dr Craig Gimbel, Clinical Director at Lantis Laser.

Dr Gimbel continued, "This incidence of tooth decay reflects the known, but with the majority of tooth decay beginning in the pit and fissures, or biting surface and between the teeth, there is a lot of 'hidden' decay that only becomes evident at a more advanced stage. More advanced imaging modalities than are currently used are sorely needed by the dental profession. Since the fluoridation of water, the incidence of decay forming under the enamel has also increased. The 'hidden' decay in all these areas needs to be unearthed so treatment can be applied as early as possible, before matters get worse."

Lantis Laser's OCT Dental Imaging System(tm) is currently in Phase 2 development and 5 Beta clinical systems are expected to be deployed by January 2008. The OCT diagnostic imaging system, with a resolution of up to 10 times x-ray, will significantly upgrade the dentist's ability to view and evaluate dental tissue for early detection of decay and microstructural defects. Market introduction is targeted for the third quarter of 2008.

Stan Baron, President & CEO of Lantis said, "This is a disease that is prevalent worldwide and like any disease, if it is going to be confronted, the key is in early detection. Lantis' OCT Dental Imaging System(tm) will be the modality of choice to confront this worldwide health problem. Dentists in approximately 200,000 dental offices around the world do the same thing -- find decay and treat it -- the earlier the better."

Friday, November 09, 2007

Another Sonicare Review

bb gadgets has reviewed the Sonicare and liked it.
Go read the review.
Here is their view: The best Sonicare (and perhaps electric toothbrush) yet, but you'll have to slap down two bills for it.

Wednesday, November 07, 2007

New Troque Wrench



“JDentalCare has designed and developed JDTorque® the patent pending torque wrench for surgical and prosthetic use.

JDTorque® is a universal wrench; it can be used as a torque wrench or as a traditional ratchet for every implant system with an appropriate adapter.

The high mechanical resistance with the great elasticity of the plastic material PEEKTM allow JDTorque® to measure torque up to 80 Ncm, that represents an absolute news for this type of instruments.This material is extremely light compared with metals and can undergo thousands sterilization cycles at temperatures up to 134°C without changing its mechanical characteristic.Particularly simple to use, the torque wrench doesn't require any mounting or dismounting allowing to save time even during intervention of maintenance.

Design, functionality, easiness and lightness make this instrument absolutely unique

More on the web site www.jdentalcare.com its in both English and Italian

Tuesday, November 06, 2007

New Caries Detection Unit



From the CarieScan web site

With the growing trend towards preventive dental care, CarieScan provides practitioners with more opportunity to arrest or even reverse caries.

Accurate and early detection of caries combined with preventive care should leads to fewer fillings. When required fillings should be smaller, be placed later, and last longer.

Caries detection using CarieScan is more comfortable for the patient, will correctly detect more lesions than will be found on radiographs and also minimises false positives.

As a system using only tiny electrical currents to detect decay, CarieScan has none of the inherent risks associated with ionising radiation.

The CarieScan results are valuable to both the patient and the practitioner. They provide additional information about the tooth without the need for an x-ray, helping the dentist to plan the necessary treatment or operative steps.

Monday, November 05, 2007

3M Self-Ligating Braces


MONROVIA, Calif.--(BUSINESS WIRE)--

Combining the latest in braces technology and fashion, 3M Unitek Corp. introduces Clarity SL braces, a clear, self-ligating braces system. Made from translucent ceramic, Clarity SL braces are designed to blend in with teeth, help teeth move faster, and make braces easier to clean, while eliminating the less desirable appearance and hygiene issues of ordinary braces. Clarity SL braces are now available nationwide.

Unlike traditional braces, self-ligating braces such as Clarity SL and SmartClip™ brands from 3M Unitek do not need elastic bands (ligatures) to attach the wire to the brackets. Ligatures can slow down the teeth-moving process by causing friction or resistance, much like driving a car with the emergency brake on. Eliminating elastics reduces friction and can help the braces work more efficiently.

With the introduction of Clarity SL braces, consumers do not have to choose between clear and self-ligating braces. They can get both in one system.

“For the first time, adults and children who need braces no longer have to trade off looks or performance to achieve a beautiful smile,” said Anoop Sondhi, DDS, MS, an orthodontist in Indianapolis, Ind. “Clarity SL braces are an important new option, especially for teens and adults, who often want less visible braces and to get their braces off as quickly as possible.”

Clarity SL braces use advanced technology 3M Unitek pioneered for its SmartClip Appliance System, the first truly self-ligating braces. Designed with sophisticated engineering and space-age material, these braces use a unique clip to hold the wires in place without elastic ligatures, yet carefully regulate force. With no mechanisms to slide or clog or become difficult to operate, these clips permit easy and simple wire insertion and removal. The result is less patient discomfort and more efficient treatment.

Self-ligating technology is one of the most significant modern innovations in orthodontics. According to the American Association of Orthodontists (AAO), the self-ligation market grew 40 percent from 2005 to 2006. Although conventional braces are still a good option, braces without elastic ligatures allow the use of lighter force, which can move teeth into position more efficiently and comfortably, shorten overall treatment time and may mean fewer and quicker visits for adjustments.

Ordinary braces, which are typically worn for 18 to 24 months, require time-consuming adjustments about every four to six weeks to change the elastics and wire. Since they do not use elastic ligatures, self-ligating braces may need adjusting only every two or three months, depending on the stage of treatment. In addition, the intelligent clip mechanism of Clarity SL and SmartClip braces allows the orthodontist to easily insert and remove the wire, helping to reduce chair time at each visit.

“Today, most patients and their parents have extremely busy schedules, and it can be difficult finding the time or taking off from work or school for frequent adjustments and changing ligatures,” said Dr. Patrice Pellerin, an orthodontist in Quebec, Canada. “The convenience of fewer and faster appointments over about 14 to 18 months of total treatment with Clarity SL braces is a great service to patients and orthodontists.”

Cosmetically and hygienically, self-ligating braces can help patients keep their braces and teeth cleaner. The elastic ligatures used with conventional braces can discolor and stain, drawing unwanted attention to the mouth. On a more serious level, the elastic bands can trap food and harbor bacteria, which promote tooth decay. They also make brushing more difficult, making it a challenge to keep braces, teeth and gums clean. Self-ligating braces can offer improved patient hygiene and help increase patient confidence during treatment.

According to the AAO, nearly 5.5 million Americans wear braces. Although about 80 percent of them are children and teens, more adults than ever are beautifying their smiles due to the growing variety of appliances. From 1994 to 2004, the number of adult patients grew 37 percent.

3M Unitek: a leader in orthodontic innovation

Clarity SL braces are the latest innovation from 3M Unitek, meeting the challenge to develop a bracket with the optimum combination of aesthetics and efficiency. Using advanced technology, the bracket combines the aesthetic properties of Clarity Ceramic Brackets with the technology of SmartClip Self-Ligating Brackets.

Since its founding in 1948, 3M Unitek has been committed to orthodontics, introducing industry milestone products such as the first stainless steel brackets, adhesive pre-coated brackets, color changing bonding adhesive and true self-ligating brackets. Today, 3M Unitek delivers its more than 14,000 products and innovative orthodontic solutions worldwide, and takes a leadership position in the industry based upon its unwavering commitment to superior customer service and the highest quality products and services. For more information, visit www.3MBraces.com.

About 3M Health Care

3M Health Care, one of 3M’s six major business segments, provides world-class innovative products and services to help health care professionals improve the practice, delivery and outcome of patient care in medical, oral care, drug delivery and health information markets.

About 3M - A Global, Diversified Technology Company

Every day, 3M people find new ways to make amazing things happen. Wherever they are, whatever they do, the company’s customers know they can rely on 3M to help make their lives better. 3M's brands include Scotch, Post-it, Scotchgard, Thinsulate, Scotch-Brite, Filtrete, Command and Vikuiti. Serving customers around the world, the people of 3M use their expertise, technologies and global strength to lead in major markets including consumer and office; display and graphics; electronics and telecommunications; safety, security and protection services; health care; industrial and transportation. For more information, including the latest product and technology news, visit www.3M.com.

Clarity, SmartClip, Scotch, Post-it, Scotchgard, Thinsulate, Scotch-Brite, Filtrete, Command and Vikuiti are trademarks of 3M.

Note to editors:

Embracing braces – hot tips for patients and parents

This is an exciting time for people who are considering braces. Not all appliances – or dental professionals – are the same, and consumers may not realize there are options. The following tips can help patients and parents make more informed choices about straightening their teeth.

* Children should be screened for potential bite and alignment problems at about age 7 or 8, although they do not usually get braces until all the permanent teeth are in (about age 11 or 12).
* Not all dentists and orthodontists are the same or have the same level of training. Find a qualified specialist who you are comfortable with by doing some research and asking for recommendations from people in your area.
* You have the right to expect a good explanation of your/your child’s problem, why treatment is advisable and what is entailed in the treatment plan.
* Go online to learn about the different kinds of braces so you can discuss various options with your orthodontist.
* Think about which type of braces fit your lifestyle – younger children may enjoy choosing different colored rubber bands as part of conventional systems; older children and adults tend to opt for less obvious braces.
* Modern braces that are both aesthetically pleasing and work more efficiently are now available.
* Ask the dental professional how long your total treatment will be, and how often you will need to be seen with different types of appliances.
* Once you have braces, carefully follow the instructions of your orthodontist or dentist. Your full cooperation will help ensure your treatment goes according to plan.
* Avoid hard or sticky candy, gum and other chewy foods while wearing braces to help prevent breaking them.
* Keeping your teeth and braces clean is an essential part of good oral hygiene and avoiding tooth decay and gum disease. Spend extra time brushing. Special brush tips, flosses and rinses are available to make the task easier.
* Raise your dental IQ. To learn more about the latest advances in braces, or the health and cosmetic benefits of straighter teeth, visit the American Association of Orthodontists at www.braces.org. To learn more about 3M Unitek and its innovative products or to find an orthodontist familiar with new braces technology, visit www.3Mbraces.com.

Innovative idea could fill the gaps in NHS dental provision

Not a good thing for UK dentists. MJ

From Onmeidca.net
2 Nov 2007 Lisa Hitchen

The shortage of NHS dentists in the UK could be solved through an idea by property magnets Fergus and Judith Wilson.

The former maths teachers turned buy-to-let entrepreneurs have dreamt up the idea of flying in dentists from abroad to run local, private dental clinics.

They plan to establish seven clinics across the UK, around 100 miles apart so that people don't have to travel abroad to get treatment. The clinics are likely to be sited two miles from motorway junctions.

"Basically we are bringing Budapest, Prague and Warsaw to the UK," Mr Wilson told OnMedica. "Instead of flying 300 patients out there we will fly one dentist over here."

It is better for the environment and less difficult for patients to access a service close to their homes, he added.

Numerous media reports have highlighted the serious problem many in Britain are facing in finding NHS dentists or being unable to afford private treatment. Many have gone overseas for private treatment that is much cheaper than in the UK whilst others have resorted to self treatment. The Wilsons got the idea whilst reading such stories in the media, Mr Wilson said.

The first clinic will be in Maidstone, whose local council has been very receptive. The pair have written to the Prime Minister and Conservative leader, David Cameron to get their support. They are hoping for an accelerated planning procedure with local councils being given permission to approve their clinics, contrary to policies, Mr Wilson said.

He also hopes to set up an emergency facility at each to cater for those requiring urgent treatment.

Six companies have already expressed an interest - two from Eastern Europe, two from the UK and two from America. If they get the go-ahead, the clinics will undercut other UK private dental providers in what they charge but offer competitive salaries to dentists from Eastern Europe who choose to come to the UK.

The Wilsons already own 700 buy-to-let properties and see the long running problems over UK dentistry as a business opportunity. "Undoubtedly there will be an opportunity for dentists to rent the houses," Mr Wilson admitted.

Meanwhile, a new contract for salaried primary care dentists in England has been approved by the Department of Health today and is open to a ballot beginning November 12 and closing on November 30.

If agreed, the contract would introduce a new training allowance and see terms and conditions modernised and aligned with other clinical staff in the NHS, said the British Dental Association, who negotiated it with NHS Employers.

Sunday, November 04, 2007

Electronic Helath Records eBroadcast



This maybe an interesting topic even if it is for medical offices. Sign up by clicking here.

Is your organization considering an upgrade to using EHR (electronic health records)? EHR has proven essential for improving patient care, increasing practice efficiency, and reducing healthcare costs nationwide. During this Frost & Sullivan eBroadcast, we will chronicle an actual practice’s implementation of an EHR, and participate in an informative discussion of the benefits, dynamics, challenges, and rewards surrounding this technology. We will also provide a breakdown of the fast-growing EHR market, and discuss current research, specifications, options, Pay For Performance, and future quality initiatives, among other hot topics.

Saturday, November 03, 2007

Cement Selection for Cement-Retained Crown Technique with Dental Implants

James L. Sheets DDS, Charles Wilcox DDS, MS, Terry Wilwerding DDS, MS
Cement Selection for Cement-Retained Crown Technique with Dental Implants
Journal of Prosthodontics (OnlineEarly Articles).
doi:10.1111/j.1532-849X.2007.00262.x


Purpose: The purpose of this study was to assess and compare the retentive nature of common dental cements that have been adapted for use in the implant abutment cement-retained crown (CRC) technique with those specifically formulated for this purpose.

Materials and Methods: Ten regular diameter implant analogs were embedded in stainless steel disks. Unmodified CRC abutments were attached and torqued to 30 Ncm. Test crowns were waxed and cast with base metal alloy. Castings were fitted, cleaned with aluminum oxide, and steam cleaned prior to application of the cement. The cements used were: (1) Temp Bond, (2) UltraTemp, regular, (3) UltraTemp firm, (4) ImProv with petroleum jelly coating of crown, (5) ImProv without petroleum jelly, (6) Premier Implant with KY Jelly coating of abutment, (7) Premier Implant without KY jelly, (8) TR-2, (9) Fleck's, (10) Ketac Cem Aplicap, and (11) Fuji Plus Capsule. After cementation, assemblies were stored for 24 hours. Each sample was subjected to a pull-out test using an Instron universal testing machine at a crosshead speed of 5.0 mm/min. Loads required to remove the crowns were recorded, and mean values for each group determined. A one-way ANOVA and a post hoc least square difference (LSD) test were done for pairwise comparison at a confidence interval of 95%.

Results: The mean values (±SD) of loads at failure (n = 10) for various cements were as follows (N): Ultratemp, regular 358.6 (±38.2) (Group A), ImProv without petroleum jelly 172.4 (±59.6) (Group B), Fleck's 171.8 (±62.2) (Group B), Ketac Cem 167.8 (±69.1) (Group B), UltraTemp firm 158.8 (±62.7) (Group BC), Fuji Plus 147.5 (±69.7) (Group BC), Premier without KY jelly 131.6 (±31.8) (Group BC), ImProv using petroleum jelly 130.8 (±42.5) (Group BC), Temp Bond 117.8 (±48.3) (Group C), TR-2 41.2 (±16.6) (Group D), and Premier with KY jelly 31.6 (±24.8) (Group D). Groups with the same letter were not significantly different.

Conclusions: Within the limitations of this in vitro study, it is not suggested that any one cement is better than another at retaining cement-retained crowns (CRCs) to implant abutments or that a threshold value must be accomplished to ensure retention. The ranking of cements presented is meant to be a discretionary guide for the clinician in deciding the amount of desired retention between castings and implant abutments.

Friday, November 02, 2007

Pre-op antibiotics prevent infection for wisdom teeth surgery

Patients who have their wisdom teeth pulled and do not take antibiotics before surgery are twice as likely to get an infection after the surgery than those who take a single dose of antibiotics shortly before surgery, says Eastman Dental Center researchersYan-Fang Ren, DDS, PhD, MPH and Hans Malmstrom, DDS. The Eastman Dental Center is part of the University of Rochester Medical Center.

Their findings are published this month in the Journal of Oral & Maxillofacial Surgery.

Surgical extraction of impacted of wisdom teeth-or third molars-is the procedure carried out most commonly in oral surgery and general dental practices around the world," said Ren. "Inflammation and infection associated with bacterial contamination are the most common complications after third molar surgery." Because infection after surgery is usually accompanied by debilitating pain and functional impairment, clinicians have long sought effective ways to prevent complications after third molar surgery.

"Many clinical trials have been conducted in the past to investigate the controversial topic of using antibiotics before wisdom teeth surgery, but most of the published trials involved a sample size too small to support a conclusive outcome," Ren explained. Through an extensive, meticulous process explained in the Journal, Ren and Malmstrom analyzed 20 published clinical trials involving nearly 3,000 patients.

The findings of this study may serve as a guideline for dentists and oral surgeons for prescribing antibiotics after wisdom teeth surgery. "We do not advocate a universal prescription of antibiotics for every third molar surgery," Ren explained, "but for patients who have risks for postoperative infections, a single dose of antibiotics before surgery is probably more effective than taking several days of antibiotics after the surgery is completed." Drs. Ren and Malmstrom hope that this study could help dentists be more purposeful when prescribing antibiotics and to avoid unnecessary antibiotic use.

A world leader in residency training and research initiatives, Eastman Dental Center each year treats thousands of Rochester-area patients by providing a full range of general and specialized dentistry including pediatrics, periodontology, oral and maxillofacial surgery, orthodontics and prosthodontics. Established in 1915, the Eastman Dental Center is the only major post doctoral dental education, research and clinical institution in the U.S. within an academic medical center. The legacy of George Eastman continues to thrive with its extensive community outreach program helping underserved residents.

http://www.urmc.rochester.edu

Thursday, November 01, 2007

My Macbook Update

I had purchased a Macbook last week only to find out the new Macbooks were released today. So I canceled my Macbook which is in transit and ordered a new and improved model. So I am not getting a white Macbook with a 2.2 GHz processor, 2GB of RAM and a 250GB Hard Drive. So faster processor and a better graphics card. Unfortunately I have to wait another week.

Sonicare Flexcare Un-Boxing and Review



The new Sonicare Flexcare is a nice evolutionary advance to the Sonicare lineup. The first thing you will notice is the more streamlined handle and the inclusion of a UV box for sanitizing the brush heads. The total brush is lighter and more compact. The vibrating mechanism is now in the base handle rather then the brush head. This reduces the amount of vibration in your hand. The new Flexcare comes with 2 sizes of brush heads. A standard head and a mini head. I prefer the mini head as it allows easier access to the back teeth.



There are now 3 modes of operation all giving the 2 minute cleaning.
Clean gives you the full Sonicare power. This is what I use as it gives your teeth that clean feeling. There is a sensitive mode that is gentler for those folks who cannot tolerate the full power. The final mode is a pulsed mode to stimulate and massage your gums.

If you want you can change the duration of the cleaning action from the normal 2 minutes. There is the Go Care 1 minute routine which is great for brushing in between meals. For those big cleaning jobs the Maxcare setting gives you 2 minutes of the regular cleaning and one minute of the Massage mode.

All the modes give you the quad pacer. This is a slight stutter of the vibration to signal going to the next quadrant. I would prefer a loud beep too.

For those of you new to Sonicare toothbrushes they have what is called "Easy Start" this gently turns up the vibrating velocity over the first 14 brushes. This lets you get used to the vibration of the brush.

Charging the Sonicare is simple. Just place it on the base and the green lights track the charge. A yellow light signals the need to recharge the Flexcare.

The best thing about the Flexcare is the built in sanitizer. Its a convenient place to store the brushes and in 10 minutes it disinfects the brushes. ( See the previous blog post on dirty brushes) This is a great feature since most people don't change their toothbrushes frequently enough ( every 3 months) and especially after being ill. The UV light kills most bacteria and viruses ensuring a clean brush for each use.

So if you are unsure if you will like a Sonicare don't worry (you will love it) they offer a money back guarantee if you are not 100% satisfied they will refund your money no questions asked. The Flexcare also comes with a 2 year warranty.

View Sonicare studies here

Here is a Flexcare video demonstration


The original humorous Flexcare unboxing after the ADA convention