Saturday, September 29, 2012

Dental crowding as a caries risk factor: A systematic review

American Journal of Orthodontics & Dentofacial Orthopedics
Volume 142, Issue 4 , Pages 443-450, October 2012


The association between dental crowding and dental caries has long been accepted because of increased food accumulation and plaque retention in areas of crowding. The aim of this review was to evaluate this potential causal relationship systematically.


Six electronic databases were accessed, supplemented by manual searching of the references of the relevant retrieved articles, peer-reviewed orthodontic journals, and gray literature. Search terms included caries, decay, crowding, and irregularity. Non-English articles were excluded from the review in the study-selection stage. Data extraction and evaluation of primary studies were performed independently by 2 reviewers.


The initial search retrieved 6914 citations. However, only 18 articles met the inclusion criteria. The qualitative systematic review included 8 studies, with articles of low or moderate quality. No association between crowding and caries was reported in 4 studies, a significant negative correlation was found in 2 studies, 1 study showed a direct and significant relationship, and another study showed a positive association in the mandibular anterior region but an inverse correlation in the maxillary posterior region.


To date, there are no high-quality studies to resolve the possible association between dental crowding and caries; further high-quality longitudinal studies are needed to clarify this relationship.

Thursday, September 27, 2012

3M and Ivoclar Vivadent Settle Dental Zirconia Coloring Patent Suit

ST. PAUL, Minn. & SCHAAN, Liechtenstein--(BUSINESS WIRE)-- 3M and Ivoclar Vivadent announced today that they have settled a patent lawsuit in Germany involving a processed zirconia coloring technology. As a result of the settlement, Ivoclar Vivadent will license this patented technology from 3M.

The technology enables the coloring of unshaded zirconia by color-matching dental restorations to the natural color of patients’ teeth. Since 3M developed and launched this technology, much of the industry colors unshaded dental zirconia using this process. 3M remains open to licensing this technology to other interested parties.
About Ivoclar Vivadent
Ivoclar Vivadent is one of the world’s leading manufacturers of innovative material systems for high-quality dental applications. The company’s success is based on a comprehensive portfolio of products and systems, strong research and development capabilities and a clear commitment to training and further education. The company has wholly owned subsidiaries in 22 countries, and it employs 2500 people worldwide.
About 3M, 3M Health Care and 3M ESPE
3M captures the spark of new ideas and transforms them into thousands of ingenious products. Our culture of creative collaboration inspires a never-ending stream of powerful technologies that make life better. 3M is the innovation company that never stops inventing. 3M ESPE Dental is part of 3M Health Care which offers solutions in the medical, oral care, drug delivery, food safety and health information markets. 3M ESPE markets more than 2,000 dental products and services. 3M ESPE products are designed to help make dentistry easier, faster and better for dental professionals and their patients. For more information on 3M ESPE, visit To learn more about 3M, visit or follow @3MNews on Twitter.

Eco-Dentistry Association to Host Free “High-Time for High-Tech” Webinar

The EDA offers free educational webinar on the environmental and overall benefits of dental technology
Berkeley, CA (September 24, 2012) The Eco-Dentistry Association will offer a free webinar on the benefits of running a state-of-the-art dental practice and demonstrate how implementing the latest technology can help reduce overhead costs, increase efficiencies, attract new patients and reduce the industry’s environmental impact as a whole. The webinar will take place on Thursday, October 11, 2012, from 5:30-6:00 PM PST, 8:30-9 PM EST, and is available for registration through the EDA website at: 

The free webinar, titled “High-Time for High-Tech”, is part of the EDA’s first educational campaign focusing on how technology helps dental offices reduce waste and pollution and save energy, water and money. According to the EDA, many dental practitioners already take advantage of digital dentistry and may not realize that their office is greener than they think. “There’s a 1:1 correlation between the high-tech choice and the eco-friendly choice,” says EDA Co-Founder Ina Pockrass. “Our ‘High-Time for High-Tech’ webinar will help dentists, students, practice managers and other industry professionals get the most out of the investments in technology they’ve made and learn more about new innovations that can make their practice even more profitable and more environmentally sound.”
The EDA encourages individuals in all areas of dentistry to attend the webinar and learn about the staggering environmental impact dentistry has on our planet and how we can all make a difference. “It’s important to understand the relationship between dentistry and our environment,” says Pockrass. “After all, can you imagine practicing modern dentistry without reliable access to clean water?” 

About the EDA
The EDA offers dental professionals’ practical tips on incorporating eco-friendly dental methods and practices, and offers the public access to dental professionals that share their values of wellness and environmental stewardship. The organization was co-founded by Dr. Fred Pockrass, a dentist, and his entrepreneur wife, Ina Pockrass, who together created the model for eco-friendly dentistry, and operate their own award-winning dental practice in Berkeley, California, the first in the country to be certified as a green business. They formed the organization to stimulate a movement in the dental industry to employ environmentally-sound practices, like reducing waste and pollution, saving energy, water and money, incorporating wellness-based methods and the best technological advances in dentistry. More information can be found at

Wednesday, September 26, 2012

Digital analysis of staining properties of clear aesthetic brackets

With more general dentists doing orthodontics this is important to know. MJ

Journal of Orthodontics vol. 39 no. 3 170-175 


Objective: To analyse the staining properties of clear orthodontic brackets using a digital analysis.
Design: In vitro, laboratory study
Material and methods: A total of 500 tooth-coloured brackets from 10 brands (five ceramic and five plastic) were investigated. The cumulative discolouring effect of staining agents (tea, coffee, curry and red wine) were analysed at two consumption levels: light and heavy, based on a 6-month period of exposure. Study group brackets were immersed in the agents consecutively at 37°C. The control group was only exposed to artificial saliva. Samples were analysed digitally to obtain L*, a* and b* (lightness, red-green and yellow-blue) colour readings. Using these values, total colour change (ΔE*) at each level was also calculated. Three-way analysis of variance (ANOVA) test was used for statistical comparisons.
Results: L* and b* colour parameters showed significant differences (P<0 and="and" between="between" bracket="bracket" consumption="consumption" different="different" em="em" exposure.="exposure." groups="groups" however="however" levels="levels" of="of" the="the" type="type">a
* value only differed between bracket groups (P<0 according="according" em="em" the="the" to="to">E* values, ceramic brackets had less colour change than plastic brackets at the end of phase 1 for both the study and control groups. However, as consumption time increased, the rate of colour change decreased for the plastic brackets. In general, ceramic brackets demonstrated much more resistance to staining agents than plastic brackets.
Conclusions: Both plastic and ceramic brackets showed changes in colour when exposed to heavy consumption of staining agents, with plastic brackets being the most affected.

Tuesday, September 25, 2012

Occlusal adjustment associated with periodontal therapy - A systematic review

Available online 13 September 2012



Occlusal adjustment as part of periodontal therapy has been controversial for years, mostly because the literature does not provide enough evidence regarding the influence of trauma from occlusion (TfO) on periodontitis. The need for occlusal adjustment in periodontal therapy is considered uncertain and requires investigation. The aim of this systematic review was to identify and analyze those studies that investigated the effects of occlusal adjustment, associated with periodontal therapy, on periodontal parameters.
Data: A protocol was developed that included all aspects of a systematic review: search strategy, selection criteria, selection methods, data collection and data extraction.
Sources: A literature search was conducted using MEDLINE via PubMed, the Cochrane Central Register of Controlled Trials, and EMBASE.
Study Selection: Three reviewers screened the titles and abstracts of articles according to a established criteria. Every article that indicated a possible match, or could not be excluded based on the information given in the title or abstract, was considered and evaluated. On final selection, four articles were included.


Although the selected studies suggest an association between occlusal adjustment and an improvement in periodontal parameters, their methodological issues (explored in this review) suggest the need for new trials of a higher quality. There is insufficient evidence at present to presume that occlusal adjustment is necessary to reduce the progression of periodontal disease.
Clinical significance: Although it is still not possible to determine the role of occlusal adjustment in periodontal treatment, adverse effects have not been related to occlusal adjustment. This means that the decision made by clinicians whether or not to use occlusal adjustment in conjunction with periodontal therapy hinges upon clinical evaluation, patient comfort, and tooth function.

Monday, September 24, 2012

Effects of Xylitol Mouthrinse on Streptococcus mutans

Available online 4 September 2012



This study aimed to measure the effect of xylitol mouthrinse on salivary Streptococcus mutans counts. Methods: Subjects in the study group (n = 25) used xylitol mouthrinse for 4 weeks, while another group (n = 25) used saccharine mouthrinse. S. mutans were measured before and after intervention. Results: At the baseline the mean S. mutans scores were 3.9 (SE = 0.03) and 3.9 (0.04) for the xylitol group and control group respectively, while the scores were 2.8 (0.13) and 3.9 (0.07) after the intervention. Significant reductions (p< 0.01) in the scores of S. mutans were found after the four week use of xylitol mouthrinse. Conclusions: Significant reductions in the scores of S. mutans were found after the four week use of 20% xylitol mouthrinse. The bacteriostatic effect of xylitol mouthrinse on S. mutans may be comparable to other xylitol products. Further studies are needed to confirm both the short and long term effects of xylitol mouthrinse.

Watch this Take Five With Marty video with Shirley Gutkowski RDH on the benefits of Xylitol

Saturday, September 22, 2012

Carestream Dental Releases CS PracticeWorks v7.5

Popular Software Aligns with CS Brand;
Supports Two New eServices that Streamline Workflow

ATLANTA – Carestream Dental today released CS PracticeWorks v7.5, the latest version of the popular practice management software. The updated version supports two new eServices – ePostings and eForms – that streamline reimbursement and online patient registration.

For nearly twenty years, PracticeWorks has delivered tools that help practices run more efficiently, including intuitive scheduling, charting and financial features that improve communication and automate daily workflows. For the first time, the software is being introduced as CS PracticeWorks to better align with the Carestream Dental brand. In addition to serving as a reliable foundation for practices’ front office teams, CS PracticeWorks integrates seamlessly with Carestream Dental's imaging software – delivering best in class workflow and allowing for easy access to patients’ diagnostic images.

The two eServices now supported in CS PracticeWorks v7.5 are:
·         ePostings streamlines the process of receiving and posting reimbursements from insurance carriers, removing the need to decipher detailed paper EOBs. ePostings automatically notifies users when EOBs are received and then posts the payments directly to the appropriate patients within CS PracticeWorks. Auto-posting bulk payments with ePostings saves practices hours each week.

·         eForms allows patients to complete registration paperwork online at home or at a computer when they arrive for their appointments. The process is both convenient for patients and beneficial to practices, saving everyone valuable time on paperwork. eForms can even be used on an iPad®*, which allows patients to digitally sign consent forms. Customer interfaces can be easily customized within eForms to include practice logos and information, creating a seamless patient experience.

By removing paper-driven data entry processes, whether by insurance carriers, employees or patients, both ePostings and eForms save practices time and improve data accuracy by reducing the chance for clerical error.

“CS PracticeWorks v7.5 has its roots in our customers’ requests for paperless solutions that easily integrate into practice workflows and save practitioners time,” said Matt Ackerman, senior product line manager for Carestream Dental. “With the new eServices now available for CS PracticeWorks, our customers will have more time available to focus on their patients and ultimately improve the overall patient experience.”

Existing CS PracticeWorks users can visit to request that the software update be shipped to them. For more information on Carestream Dental’s innovative solutions or to request a product demonstration, call (800) 944-6365 or visit

About Carestream Dental
Carestream Dental provides industry-leading imaging, software and practice management solutions for dental and oral health professionals. With more than 100 years of industry experience, Carestream Dental products are used by seven out of 10 practitioners globally and deliver more precise diagnoses, improved workflows and superior patient care. For more information or to contact a Carestream Dental representative, call (800) 944-6365 or visit

About Carestream Health
Carestream Health is a worldwide provider of dental and medical imaging systems and healthcare IT solutions; molecular imaging systems for life science research and drug discovery/development; X-ray film and digital X-ray systems for non-destructive testing; and advanced materials for the precision films and electronics markets.

For more information about the company’s broad portfolio of products, solutions and services, please contact your Carestream Health representative or visit

Friday, September 21, 2012

Antimicrobial efficacy of a high-power diode laser, photo-activated disinfection, conventional and sonic activated irrigation during root canal treatment

International Endodontic Journal, 00, 000000, 2012.



To evaluate the antimicrobial effect of a diode laser irradiation, photo-activated disinfection (PAD), conventional and sonic activated irrigation with 2.5% sodium hypochlorite (NaOCl) on Enterococcus faecalis.


Root canals of 120 human extracted teeth with single straight canals were prepared with ProTaper files, sterilized, contaminated with an E. faecalis suspension and incubated for 7 days. They were then randomly distributed into six groups: G1, diode laser irradiation (2 W, 3 × 20 s); G2, PAD (100 mW, 60 s); G3, PAD with 3D Endoprobe (100 mW, 60 s); G4, 30-gauge syringe irrigation with NaOCl (60 s); G5, sonic agitation of NaOCl with the EndoActivator system (60 s); G6, 30-gauge syringe irrigation with NaCl (60 s). The pattern of colonization was visualized by scanning electron microscopy. The root canals were sampled by flushing with saline solution at baseline and after the treatments. The number of bacteria in each canal was determined by plate count. The presence and the absence of E. faecalis in root canals were also demonstrated by polymerase chain reaction (PCR).


There was a significant reduction in the bacterial population after all treatments (P < 0.001). The PAD, using both laser systems, and the sonic activated NaOCl irrigation were significantly more effective than diode irradiation and single NaOCl irrigation in reducing CFUs (P < 0.05). High-power diode laser and single NaOCl irrigation had an equal antibacterial effect (P > 0.05).


The PAD and EndoActivator system were more successful in reducing the root canal infection than the diode laser and NaOCl syringe irrigation alone.

Thursday, September 20, 2012

Carestream Dental Partners with XCPT, LLC for Improved Treatment Planning and Patient Education

Intuitive Software Helps Practitioners Present Simple to Complex Cases; Communicate More Effectively with Patients

ATLANTA – Carestream Dental today announced its new partnership with XCPT, LLC, a leading dental software company that provides oral health practitioners with treatment planning solutions. As a result of this partnership, Synapshot™, XCPT’s latest software application, will soon be seamlessly integrated within a number of Carestream Dental Software Solutions.

Synapshot is new software developed to help dentists, dental assistants and treatment coordinators communicate with patients and colleagues. This diagnostic solution helps practitioners to document and deliver highly visual optimal treatment plan templates – for simple to complex cases – that better patient understanding and treatment acceptance.

"We’re very excited to announce our collaboration with XCPT," said Kathy Ford, vice president of product line management for Carestream Dental. "Beginning with our CS PracticeWorks practice management software, customers will have the ability to transfer patient data directly into Synapshot to create interactive treatment plans, without re-entering information. This integration not only streamlines a practice’s workflows, but it enables practitioners to clearly explain diagnoses and treatment options.”

With Synapshot and the integration created with Carestream Dental solutions, customers will be able to easily include their X-rays, CT scans and photos in a single document to create a completely visual treatment plan. As diagnostic images are captured, they are automatically placed in Synapshot. This means that all practice digital documents can be stored and managed in one location.

“The documents created in our Synapshot software can serve as a roadmap for practitioners providing surgical and restorative care,” said Steven J. Feldman, D.D.S., practicing periodontist, founder and chief executive officer of XCPT, LLC. “Our software provides a unique solution by seamlessly combining treatment planning and patient education videos. We couldn’t be happier about our partnership with Carestream Dental and we are looking forward to integrating our software with their suite of practice management and imaging software solutions.”

Carestream Dental and XCPT will continue to work together to develop stronger integration paths between practice management software platforms and Synapshot - eventually delivering cost and pricing data as well as profitability metrics to individual treatment plans.

For more information on Carestream Dental’s innovative solutions or to request a product demonstration, call (800) 944-6365 or visit For more information or to contact a XCPT representative, call (866) 927-9278 or visit To view a video demonstration of XCPT’s Synapshot software, visit Synapshot on YouTube.

Wednesday, September 19, 2012

New Discovery Related To Gum Disease

A University of Louisville scientist has found a way to prevent inflammation and bone loss surrounding the teeth by blocking a natural signaling pathway of the enzyme GSK3b, which plays an important role in directing the immune response.

The discovery of UofL School of Dentistry researcher David Scott, PhD, and his team recently published on-line first in the journal Molecular Medicine. The finding not only has implications in preventing periodontal disease, a chronic inflammatory disease that causes tooth loss, but also may have relevance to other chronic inflammatory diseases. Since GSK3b is involved in multiple inflammatory signaling pathways, it is associated with a number of diseases and also is being tested by scientists for its impact in Alzheimer's disease, Type II diabetes and some forms of cancer, to name a few.

"The traditional approach to dealing with periodontal disease is to prevent plaque from forming at the gum-line or prevent the consequences of periodontal disease progression," Scott said. "Our approach manipulates a natural mechanism within our bodies to prevent inflammation and subsequent degradation when exposed to the bacterium P. gingivalis."

GSK3b is known to facilitate the inflammation that occurs during bacterial infections, so blocking this enzyme from completing its normal function by using the GSK3-specific inhibitor, SB216763 stopped the inflammation process and subsequent bone loss induced by the key periodontal pathogen, P. gingivalis, Scott said.

The next step is for Scott and his team to determine whether SB216763 has any side-effects or whether they need to search for a different inhibitor of GSK3b.

"Inhibition of GSK3 abolishes bacterial-induced periodontal bone loss in mice" (PDF), journal Molecular Medicine

Tuesday, September 18, 2012

The effect of coping/veneer thickness on the fracture toughness and residual stress of implant supported, cement retained zirconia and metal–ceramic crowns

Dental Materials
Volume 28, Issue 10 , Pages e250-e258, October 2012



The aim of the work was to assess the influence of coping and veneer thickness on the fracture resistance of porcelain–metal and porcelain–zirconia crowns in a clinically representative model.


A total of 30 zirconia and 30 precious metal copings were fabricated. There were 10 copings in each group of 0.5mm, 1mm and 1.5mm thickness. Each group of 10 was further divided into two groups with a total thickness of three and four millimeters inclusive of veneering ceramic. The specimens were cemented to a titanium abutment with zinc oxide cement and tested using a microindenter. Crack length, hardness and spalling (chipping) were recorded using an optical microscope from which fracture toughness was calculated.


Kruskal–Wallis tests and simple linear regression analysis were used to analyze the results, revealing a significant difference between zirconia (ZrCC) and metal (MCC) specimens for crack length. 0.5mm coping thicknesses and MCC specimens showed the highest fracture toughness values. Simple linear regression analysis showed a limited effect of the overall thickness or veneer thickness on crack length and hardness; however coping thickness showed a positive correlation with both. Spalling was higher in zirconia specimens.
Residual stresses were higher for ZrCC specimens and showed a positive correlation with crack length. The ratio of veneer to coping thickness was negatively correlated with residual stress.


Residual stresses due to thermal mismatch between the coping and the veneering ceramic should be kept to a minimum. The ZrCC specimens were found to have lower apparent fracture toughness than MCC specimens. Thermal mismatch caused a larger drop in apparent fracture toughness than the inherent differences in the materials used.

Monday, September 17, 2012

Japanese invention could end tooth decay

Scientists in Japan have created a microscopically thin film that can coat individual teeth to prevent decay or to make them appear whiter, the chief researcher said.
The “tooth patch” is a hard-wearing and ultra-flexible material made from hydroxyapatite, the main mineral in tooth enamel, that could also mean an end to sensitive teeth.
“This is the world’s first flexible apatite sheet, which we hope to use to protect teeth or repair damaged enamel,” said Shigeki Hontsu, professor at Kinki University’s Faculty of Biology-Oriented Science and Technology in western Japan.

Read the rest of the story

Saturday, September 15, 2012

Comprehensive Periodontal Examination

In Episode 10 of Take Five With Marty, Dr. Marty Jablow discusses the Comprehensive Periodontal Examination with Periodontist and Implant Specialist, Dr. Wayne Aldredge. To view more episodes of Take Five With Marty visit

Friday, September 14, 2012

Carestream Dental Presents New Advanced Solutions at the American Association of Oral and Maxillofacial Surgeons Annual Meeting

Where It All Comes Together: New Products Offer Practitioners
Greater Imaging Flexibility and Affordability; Streamline Workflows
SAN DIEGO – Carestream Dental today will introduce the CS 9300 Select, CS WinOMS v8.5 with digital consents and the Lexicomp drug list partnership - advanced solutions that put both superior 3D imaging within reach of more practitioners and streamline practice workflows. These solutions will debut at the 94th Annual American Association of Oral and Maxillofacial Surgeons (AAOMS) Annual Meeting, held through Saturday, Sept. 15, in San Diego.

Designed for ultimate practice versatility, the CS 9300 Select is a multi-purpose extraoral imaging system that is tailored to meet any practice’s diagnostic needs and budget. A new addition to the CS 9300 family, the CS 9300 Select is complete with 3D cone beam computed tomography (CBCT) and 2D digital panoramic imaging in addition to an optional cephalometric modality. The differences between the CS 9300 Select and the original CS 9300 (launched in 2011) are the number and sizes of the 3D fields of view offered.

With four selectable fields of view ranging from 5 cm x 5 cm to 10 cm x 10 cm, the CS 9300 Select is an affordable and practical option suitable for general practitioners and specialists placing implants or performing endodontic procedures, periodontal treatments and oral surgeries of the teeth and jaws.

The CS 9300 Select gives practitioners the ability to limit radiation exposure by collimating the field of view to a precise region of interest.  This supports the ALARA Principle, or “As Low as Reasonably Achievable,” which dictates that every precaution should be taken to minimize radiation exposure for patients.

“With our new CS 9300 Select configuration, we are making it possible for more practitioners to be able to invest in a 3D imaging unit that not only provides them with outstanding image quality, but also covers a wide scope of clinical applications,” said Edward Shellard, D.M.D, chief marketing officer and director of business development for Carestream Dental.

Also being unveiled is the latest release of Carestream Dental’s practice management software for oral and maxillofacial surgeons.  For the first time, the software is being introduced as CS WinOMS to better align with the Carestream Dental brand.  CS WinOMS v8.5 will include digital consents as part of EMR notes. Six of the most frequently used consents are incorporated in the new version: extraction of teeth, extraction of teeth and anesthesia, grafting, endodontic surgery, biopsy procedure and day of surgery.

In addition to serving as a reliable foundation for practices’ front office teams, CS WinOMS v8.5 is also fully compatible with Carestream Dental’s imaging software, allowing for easy access to patients’ digital images. The software also gives practitioners the ability to void prescriptions and access the Lexicomp drug database.

Finally, enabling OMS practitioners to spend more quality time on patient care, Lexicomp, Inc., a Carestream Dental partner, will now provide practitioners with comprehensive drug information and clinical reference content. The Lexicomp drug list helps dental teams make faster, safer decisions with dental-specific clinical information. Lexicomp also offers an online platform that is updated with evolving drug and clinical information.

“Carestream Dental strives to provide practitioners with products that work together to complement practice workflows,” Shellard said. “Together, digital consents for CS WinOMS v8.5 and the Lexicomp drug list put more time back in our customers’ days so they can focus on their patients.”

Carestream Dental invites all AAOMS Annual Meeting attendees to visit booth number 845 to get a hands-on demonstration of its suite of products during the show. For more information on Carestream Dental’s innovative solutions or to request a product demonstration, call (800) 944-6365 or visit

About Carestream Dental
Carestream Dental provides industry-leading imaging, software and practice management solutions for dental and oral health professionals. With more than 100 years of industry experience, Carestream Dental products are used by seven out of 10 practitioners globally and deliver more precise diagnoses, improved workflows and superior patient care. For more information or to contact a Carestream Dental representative, call (800) 944-6365 or visit

About Carestream Health
Carestream Health is a worldwide provider of dental and medical imaging systems and healthcare IT solutions; molecular imaging systems for life science research and drug discovery/development; X-ray film and digital X-ray systems for non-destructive testing; and advanced materials for the precision films and electronics markets.

For more information about the company’s broad portfolio of products, solutions and services, please contact your Carestream Health representative or visit

Thursday, September 13, 2012

Heartland Dental For Sale?

(Reuters) - Heartland Dental Care Inc, one of the largest dental practice management companies in the United States, is exploring a sale that could fetch as much as $1.4 billion, according to two people familiar with the matter.
The company, in which Chicago-based private equity firm CHS Capital Partners has a stake, has hired investment banks Jefferies and Moelis to find a buyer and has drawn interest mostly from other buyout firms, the people said.
The sources asked not to be identified because the process is not public.
Heartland Dental has about $120 million in annual earnings before interest, tax, depreciation and amortization (EBITDA) and could be sold for 10 to 12 times EBITDA, they added.
The auction is early in the second round and final bids are expected about a month from now, according to the people. Jefferies has offered to provide financing for potential buyers, they added.
Representatives for Heartland Dental, CHS Capital, Jefferies and Moelis did not immediately respond to requests for comment.
Effingham, Illinois-based Heartland Dental manages more than 350 affiliated dental practices in 19 U.S. states, providing dentists with administrative services such as personnel staffing, purchasing, and financial, marketing and technology support, according to its website.
The company is owned and operated by founder and Chief Executive Rick Workman, a dentist. CHS Capital made a minority equity investment in 2008 for an undisclosed sum.

Wednesday, September 12, 2012

Dentists treating Tourette syndrome

J Neurol Neurosurg Psychiatry 83:e1 doi:10.1136/jnnp-2012-303538.24


Objective In contradiction to current neurobiological concepts of Tourette syndrome (TS) there is a small dental literature suggesting abnormalities of temporomandibular joint alignment cause tics via reflexes of the spinal trigeminal nucleus, without involvement of the brain. Treatments to correct this model of pathophysiology by using implants are being offered by dentists and are becoming well publicised in the patient population. No controlled clinical trial data are currently available. We conducted a pilot survey of patients and dentists in the UK to assess the current situation.
Method Members of the national charity Tourettes Action were contacted to find out whether they had tried or were considering dental therapies, and what the effects had been. A modified self-report version of the Yale Global Tic Severity Score impairment subscale was used. Dentists known to offer the treatment were also asked to complete a questionnaire about their work.
Results Nine people who have had the therapy (or their parents) completed the survey. The majority of respondents were male and aged under 15 years old and had been treated in the previous year. Five had pure TS whereas the other four also had co-morbidities. All had received a formal diagnosis from a specialist and four were taking medication. Four people reported that their dentists offered a complete cure although none of the three out of four dentists who responded made this claim. On average between 2 and 3 visits to the dentist were required, although one case required 24. None of the dentists discussed the treatment with the person's doctor. Two patients were reasonably happy with the implant (most of the tics disappeared but some remained), one person was satisfied (approximately half of the tics disappeared but the other half remained), two people were completely dissatisfied (all of the tics remained) and the other four reported that it was too early to tell whether the splint was effective due to complications. None of the participants were completely cured or tic-free. The cost ranged from £3600 to over £10 000.
Conclusion There is not a sound theoretical basis for dental intervention for TS and furthermore good clinical evidence to support use has not been presented. Our small survey suggests the treatment is less successful than sometimes claimed. A rigorous clinical trial is now being planned by the Tourette Syndrome Association, USA.

Tuesday, September 11, 2012

10 Pros and Cons of Jailbreaking Your iPhone or iPad

I have many dental apps on my iPhone but use it for many other aspects of my life. I use a jailbroken iPhone 4s daily for the added features and functionality it brings. Jailbraking an iPhone is not for everyone and here is a good article that discusses the merits of jailbreaking or leaving your iPhone as stock.

Tomorrow is also the big reveal of the new iPhone.

Monday, September 10, 2012

Better Diagnosis and Treatment Through Advanced Imaging

Join me for a webinar this Wednesday September 12, 2012 at
8:15 PM ET /5:15  PM PT


You can earn one CE credit and there is no cost. The webinar is sponsored by Acteon  

Better Diagnosis and Treatment Through Advanced Imaging

I will be discussing the use of digital imaging, caries diagnosis and caries removal with various imaging products.

Sign up by clicking here 

Saturday, September 08, 2012

American Journal of Orthodontics & Dentofacial Orthopedics Volume 142, Issue 3 , Pages 406-409, September 2012 Severe complication of a bonded mandibular lingual retainer

American Journal of Orthodontics & Dentofacial Orthopedics
Volume 142, Issue 3 , Pages 406-409, September 2012

Bonding a flexible spiral wire retainer to the lingual surfaces of all 6 anterior mandibular teeth is a commonly used type of retention. Complications are rare but can be serious enough to produce biologic damage. This article presents a serious complication of a lingual flexible spiral wire retainer. Four years after the orthodontic treatment, a 20-year-old man sought treatment for a broken flexible spiral wire retainer. The clinical examination showed about 35° of buccal root torque of that tooth. A cone-beam computed tomography image showed that the root and the apex of the tooth were almost completely out of the bone on its buccal side. Surprisingly, the tooth's vitality was preserved. The tooth was moved back, nearly to its original position; clinically, only a gingival recession remained. Orthodontists and dentists should be aware of possible complications of bonded retainers. Patients should be clearly informed how to detect problems at an early stage.

Friday, September 07, 2012

A novel dentin bonding system containing poly(methacrylic acid) grafted nanoclay: Synthesis, characterization and properties

Dental Materials Pages 1041-1050, October 2012



Developing a novel dentin bonding system containing poly(methacrylic acid)-grafted-nanoclay (PMAA-g-nanoclay) as reinforcing filler, with high stability of nanoparticle dispersion and improved bond strength and mechanical properties were the main objectives of this study.

Materials and methods

Poly(methacrylic acid) (PMAA) was grafted onto the pristine sodium montmorrillonite (Na-MMT) nanoclay surface and characterized using FTIR, TGA, and X-ray diffraction (XRD). The PMAA-g-nanoclay was incorporated into an experimental dentin bonding system as filler in different concentrations and stability of nanoclay dispersion in the dilute adhesive, morphology of nanoclay layers in the photocured adhesive matrix, shear bond strength to caries-free extracted human premolar teeth, and mode of failure were studied. The mechanical properties including diametral tensile strength (DTS), flexural strength (FS), and flexural modulus (FM) were also investigated. The measured FM was also compared to theoretical prediction models.


The grafting of PMAA onto the nanoclay surface was confirmed and the results revealed a partially exfoliated structure for PMAA-g-nanoclay. The dispersion stability of the modified nanoparticles in the dilute adhesive increased more than 45 times in comparison with the pristine nanoclay. The incorporation of 0.5wt.% PMAA-g-nanoclay to the adhesive resulted in a significant increase in microshear bond strength, DTS, and FS. Higher PMAA-g-nanoclay contents resulted in increased flexural modulus. The experimental flexural modulus was in good agreement with the Halpin–Tsai theoretical model.


Incorporation of PMAA-g-nanoclay particles as novel functional fillers into dental adhesive could result in the development of bonding systems with improved physical, mechanical, and adhesion properties.

Thursday, September 06, 2012

The interaction of various liquids with long-term denture soft lining materials

Dental Materials
Volume 28, Issue 10 , Pages e199-e206, October 2012



To study the uptake of liquids, representative of those encountered orally, by long-term denture soft lining materials, and analyze the data in terms of appropriate theories.


Four proprietary and one experimental soft lining material were investigated, and the weight change presented as a function of time in both aqueous and organic fluids over the course of a year. A separate experiment determined the equilibrium swelling in ethanol of poly(ethyl methacrylate) and poly(methyl methacrylate).


Uptake date for the five soft lining materials in various aqueous solution, coconut oil and HB307 are reported. The experimental value for the equilibrium swelling of poly(ethyl methacrylate) and poly(methyl methacrylate) in ethanol was reported to indicate the solubility parameter of the system.


The results have been analyzed by relevant theoretical models, which have been shown to explain the experimental data.

Wednesday, September 05, 2012

From Dayna Johnson's- Dentrix Office Manager Blog

One of the things I love about my travels around the country is interacting with some of the great thought leaders in our industry. I recently had the chance to catch up with Dr. Marty Jablow, "America's dental technology coach." I always love talking about technology trends in the dental office, and Marty is one of the "go-to guys" on the subject.

In our interview, Marty offers tips on imaging as well as his thoughts on data backup.

Tuesday, September 04, 2012

Quantitative light-induced fluorescence (QLF): A tool for early occlusal dental caries detection and supporting decision making in vivo.

Available online 30 August 2012



This study reports the development and assessment of a novel method using quantitative light-induced fluorescence (QLF), to determine whether QLF parameters ΔF and ΔQ were appropriate for aiding diagnosis and clinical decision making of early occlusal mineral loss by comparing QLF analysis with actual restorative management.


Following ethical approval, 46 subjects attending a dental teaching hospital were enrolled. White light digital (WL) and QLF images/analyses of 46 unrestored posterior teeth with suspected occlusal caries were made after a clinical decision had already been taken to explore fissures operatively. WL and QLF imaging/analysis were repeated after initial cavity preparation. The type of restorative treatment was determined by the supervising clinician independent of any imaging performed. Actual restorative management carried out was recorded as fissure sealant/preventive resin restoration (F/P) or class I occlusal restoration (Rest.) thus reflecting the extent of intervention (=gold standard). All QLF images were analysed independently.


The results showed statistically significant differences between the two treatment groups ΔF (p= 0.002) (mean 22.60 -F/P and 28.80 Rest.) and ΔQ (p= 0.012) (mean 230.49 -F/P and 348.30-Rest.).
Conclusions ΔF and ΔQ values may be useful in aiding clinical diagnosis and decision making in relation to the management of early mineral loss and restorative intervention of occlusal caries
Clinical Significance QLF has the potential to be a valuable tool for caries diagnosis in clinical practice

Saturday, September 01, 2012

Reliance on social security benefits by Swedish patients with ill-health attributed to dental fillings: a register-based cohort study

BMC Public Health 2012, 12:713 doi:10.1186/1471-2458-12-713
Published: 30 August 2012

Abstract (provisional)


Some people attribute their ill health to dental filling materials, experiencing a variety of symptoms. Yet, it is not known if they continue to financially support themselves by work or become reliant on different types of social security benefits. The aim of this study was to analyse reliance on different forms of social security benefits by patients who attribute their poor health to dental filling materials.


A longitudinal cohort study with a 13-year follow up. The subjects included were 505 patients attributing their ill health to dental restorative materials, who applied for subsidised filling replacement. They were compared to a cohort of matched controls representing the general population (three controls per patient). Annual individual data on disability pension, sick leave, unemployment benefits, and socio-demographic factors was obtained from Statistics Sweden. Generalized estimating equations were used to test for differences between cohorts in number of days on different types of social security benefits.


The cohort of dental filling patients had a significantly higher number of days on sick leave and disability pension than the general population. The test of an overall interaction effect between time and cohort showed a significant difference between the two cohorts regarding both sick leave and disability pension. In the replacement cohort, the highest number of sick-leave days was recorded in the year they applied for subsidised replacement of fillings. While sick leave decreased following the year of application, the number of days on disability pension increased and peaked at the end of follow-up.


Ill health related to dental materials is likely to be associated with dependence on social security benefits. Dental filling replacement does not seem to improve workforce participation.