Friday, December 19, 2014

Erosive cola-based drinks affect the bonding to enamel surface: an in vitro study

Very interesting to see that soda drinkers enamel may effect bond strength of our restorations. MJ

Journal of Applied Oral Science
Print version ISSN 1678-7757
J. Appl. Oral Sci. vol.22 no.5 Bauru Sept./Oct. 2014 Epub June 10, 2014 

This study aimed to assess the impact of in vitro erosion provoked by different cola-based drinks (Coke types), associated or not with toothbrushing, to bonding to enamel.
Material and methods:
Fifty-six bovine enamel specimens were prepared and randomly assigned into seven groups (N=8): C- Control (neither eroded nor abraded), ERO-RC: 3x/1-minute immersion in Regular Coke (RC), ERO-LC: 3x/1-minute immersion in Light Coke (LC), ERO-ZC: 3x/1-minute immersion in Zero Coke (ZC) and three other eroded groups, subsequently abraded for 1-minute toothbrushing (EROAB-RC, EROAB-LC and EROAB-ZC, respectively). After challenges, they were stored overnight in artificial saliva for a total of 24 hours and restored with Adper Single Bond 2/Filtek Z350. Buildup coronal surfaces were cut in 1 mm2 -specimens and subjected to a microtensile test. Data were statistically analyzed by two-way ANOVA/Bonferroni tests (α=0.05). Failure modes were assessed by optical microscopy (X40). The Interface of the restorations were observed using Confocal Laser Scanning Microscopy (CLSM).
All tested cola-based drinks significantly reduced the bond strength, which was also observed in the analyses of interfaces. Toothbrushing did not have any impact on the bond strength. CLSM showed that except for Zero Coke, all eroded specimens resulted in irregular hybrid layer formation.
All cola-based drinks reduced the bond strength. Different patterns of hybrid layers were obtained revealing their impact, except for ZC.

Thursday, December 18, 2014

Does the number of implants have any relation with peri-implant disease?

Journal of Applied Oral Science
Print version ISSN 1678-7757
J. Appl. Oral Sci. vol.22 no.5 Bauru Sept./Oct. 2014 

The aim of this study was to evaluate the relationship between the number of pillar implants of implant-supported fixed prostheses and the prevalence of periimplant disease.
Material and Methods:
Clinical and radiographic data were obtained for the evaluation. The sample consisted of 32 patients with implant-supported fixed prostheses in function for at least one year. A total of 161 implants were evaluated. Two groups were formed according to the number of implants: G1) ≤5 implants and G2) >5 implants. Data collection included modified plaque index (MPi), bleeding on probing (BOP), probing depth (PD), width of keratinized mucosa (KM) and radiographic bone loss (BL). Clinical and radiographic data were grouped for each implant in order to conduct the diagnosis of mucositis or peri-implantitis.
Clinical parameters were compared between groups using Student’s t test for numeric variables (KM, PD and BL) and Mann-Whitney test for categorical variables (MPi and BOP). KM and BL showed statistically significant differences between both groups (p<0 .001="" 19="" 26="" compared="" differences="" from="" g1="" g2="" implants="" of="" p="0.0210).</p" peri-implantitis="" prevalence="" regarding="" showed="" significant="" statistically="" the="" with="">
It seems that more than 5 implants in total fixed rehabilitations increase bone loss and consequently the prevalence of implants with periimplantitis. Notwithstanding, the number of implants does not have any influence on the prevalence of mucositis.

Wednesday, December 17, 2014

DEXIS Wins Another Group Of Peer-Elected Awards!

The imaging products of DEXIS have garnered the “Best” in 3 categories—Digital X-ray Sensor, Digital Image Management Software, and Intra-oral Camera, of the 2014 Townie Choice Awards! A TCA winner for many years, this marks the fourth con- secutive year that this DEXIS trio of products has gained these particular accolades. 

Hatfield, PA (December 12, 2014) DEXIS, a brand of the KaVo Kerr Group, is proud to announce that Dentaltown has chosen the DEXISTM Platinum digital intra-oral sensor, DEXISTM digital imaging software, and DEXcamTM 3 intra-oral camera as winners of the 2014 Townie Choice awards. DEXIS sends its appreciation to Townies across the nation, clinicians who use technology in everyday practice, and whose votes reflected their loyal use of DEXIS products.
Dentaltown states, “For over a decade, Townies have voted on the most comprehensive list of peer- recommended products and services in dentistry. Winners have become recognized as the most reliable and reputable in dentistry. By voting in the Townie Choice Awards, [Townies] improve the profession by advancing the best technologies and practices used by dentists around the world, helping them practice better dentistry. One vote can impact dentistry for thousands of practices and millions of patients.” To this point, the DEXIS Platinum single-size sensor offers dentists remarkable image quality, patient comfort, ease of use, portability, and time savings. DEXcam 3, a direct-USB intra-oral video camera, adds to the capabilities for patient education and communication.
DEXIS digital radiographs and photographs are combined for use in diagnostics and in patient communication within the DEXISTM Imaging Suite software. This program streamlines workflow and integrates with practice management software, digital pans and select 3D products. DEXIS goTM, the supporting application for DEXIS Imaging Suite, increases portability and patient education opportunities even more. DEXIS go displays all radiographic and photographic images within a patient’s record so dental professionals can communicate with patients using an iPad®.
“DEXIS products have won Townie Choice recognition over the years, and each year, it is still just as exciting that dental peers take their valuable time and effort to vote for us,” says Richard Matty, Director of Marketing for DEXIS. “We are thrilled that our intra-oral imaging products are helping them to achieve their goals in diagnostics and patient education. Dentists use DEXIS imaging products every day, and on almost every patient, and for this, we always strive to maintain the level of excellence that keeps our dental professionals loyal to our brand.”
Team DEXIS is grateful for the positive feedback on these products, continuing its legacy as the most highly awarded digital X-ray system. These votes of confidence encourage the pursuit of the development of new digital dental imaging solutions that can aid in better dental care.
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DEXIS is an industry leader in developing high quality digital imaging solutions for the dental community. In 1997, DEXIS introduced digital radiography on laptop computers — making it the first truly portable and affordable digital X-ray system. In 2001, DEXISTM became the first intra-oral digital radiography system to be accepted by the American Dental Association into the highly prestigious ADA Seal Program. Today, DEXIS is the most highly awarded intra-oral digital X-ray system with numerous awards from dental researchers and well-respected dental publications. For more information on the DEXIS Imaging Suite of products including the DEXISTM Platinum Sensor and CariVuTM, visit
DEXIS is a member of the KaVo Kerr Group. KaVo Kerr Group is a global portfolio of leading dental brands that share common values of Trust, Experience, Choices, Quality and Smart Innovation. Brands include KaVo, Kerr, Kerr Total Care, Pentron, Axis|Sybron Endo, Orascoptic, Pelton & Crane, Marus, Gendex, DEXIS, Instrumentarium, SOREDEX, i-CAT, NOMAD, Implant Direct and Ormco. With over 500 years of combined experience and proven solutions, KaVo Kerr Group uniquely serves 99% of all dental practices. Visit for more information.

Tuesday, December 16, 2014

Legendary Peak Performance Strategist Tony Robbins set to Take Center Stage at Sirona’s CEREC® 30th (C30) Anniversary Celebration

World’s Leading Life Success and Leadership Coach to Present at
Digital Dentistry’s Largest Event

Charlotte, NC (December 12, 2014) – Sirona Dental Systems, Inc., the company that pioneered digital dentistry, recently signed Tony Robbins, the world-renowned life success and leadership coach and #1 bestselling author, to appear on stage during its upcoming CEREC® 30th (CEREC 30) Anniversary Celebration.

Attendees of the three-day CAD/CAM extravaganza held at The Venetian® Hotel and The Palazzo® Hotel in Las Vegas from September 17-19th 2015 will be inspired and motivated as they learn from the master of leadership psychology during his exclusive 2-hour lecture headlining the business and leadership curriculum presented at CEREC 30.

Sirona Dental, Inc. President Michael Augins commented on Tony’s appearance, “Sirona is proud to equip dental professionals with the all of the tools needed to succeed in their professional lives. This includes not only great technology but also world class education and practice management skills. We think that Tony Robbins is the perfect person to present at C30 as he is an expert on delivering ones full potential both in business and in life.”

CEREC 30 will feature the leading clinicians in dentistry and additionally will provide a comprehensive business and leadership curriculum. Tony Robbins will headline an outstanding lineup of dynamic business speakers recruited by Sirona including Fred Joyal, renowned speaker on dental practice marketing, and Bernie Stoltz, CEO of Fortune Management. All speakers within this curriculum will present on topics that combine world-class clinical business education and leadership skills that can be applied directly in the dental practice.

In addition to an impressive lineup of motivational speakers, the CEREC 30th Anniversary Celebration will provide up to 18 CE credits across a comprehensive spectrum of digital dentistry topics and tracks, and feature an exhibit hall showcasing top dental companies and their products and services. 

All dental and dental lab professionals are encouraged to visit for additional information as it becomes available.

About Sirona Dental, Inc.

Sirona, the dental technology leader, has served dealers and dentists worldwide for more than 130 years. Sirona develops, manufactures and markets a complete line of dental products, including CAD/CAM restoration systems (CEREC), digital intra-oral, panoramic and 3D imaging systems, dental treatment centers and handpieces. Visit for more information about Sirona and its products.

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Monday, December 15, 2014

Vimeo Added to Tellcast.TV- Better Video for your reception room

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Friday, December 12, 2014

Occlusal splint vs. modified NTI splint in bruxism therapy. Randomized, controlled trial using surface electromyography




An occlusal splint and a modified nociceptive trigeminal inhibition splint (AMPS, anterior deprogrammer, Kois deprogrammer, Lucia jig, etc.) are commonly and quite frequently used in the treatment of masticatory muscle disorders, although their sustainable and long-lasting effect on these muscles’ function is still not very well known. Results of scant surface electromyography studies in patients with temporomandibular disorders have been contradictory.


To evaluate both devices in bruxism therapy, EMG activity levels during postural activity and maximum voluntary contraction of the superficial temporal and masseter muscles were compared before and after 30 days of treatment.

Study Design

Surface electromyography of the examined muscles was performed in two groups of bruxers (15 patients each). The patients in the first group used occlusal splints, while those in the second used modified nociceptive trigeminal inhibition splints. The trial was randomised, controlled, and semi-blind.


The use of neither device affects the asymmetry index or postural activity/maximum voluntary contraction ratio after one month of treatment.


Neither the occlusal nor the nociceptive trigeminal inhibition splint showed any significant influence on the examined muscles. The use of different scientific methods should be considered in clinical applications that require either direct influence on the muscles’ bioelectrical activity or a quantitative measurement of the treatment quality.

Thursday, December 11, 2014

Dentinal Crack Formation during Root Canal Preparations by the Twisted File Adaptive, ProTaper Next, ProTaper Universal, and WaveOne Instruments

Journal of Endodontics



The aim of this study was to compare the incidence of root cracks after root canal instrumentation with the TF Adaptive, WaveOne, ProTaper Next, and ProTaper Universal systems.


Seventy-five extracted mandibular central incisors with mature apices and straight root canals (<5 3="" 6="" 9="" a="" adaptive="" all="" and="" apex="" at="" by="" camera="" canals="" cooling.="" cracks.="" dentinal="" determine="" distilled="" from="" horizontally="" in="" instrumented="" kept="" low-speed="" magnification.="" mm="" next="" of="" p="" photographed="" presence="" protaper="" root="" roots="" samples="" saw="" sectioned="" selected="" slices="" stereomicroscope="" systems.="" tf="" the="" then="" through="" to="" under="" universal="" using="" viewed="" water.="" water="" waveone="" were="" with="">


The control group had no cracks, and the difference between the control group and the experimental groups was statistically significant (P < .001). The ProTaper Next and TF Adaptive systems produced significantly less cracks than the ProTaper Universal and WaveOne systems in the apical section (3 mm) (P < .05).


Under the study conditions and within the limitations of this study, it can be concluded that the ProTaper Universal, ProTaper Next, WaveOne, and TF Adaptive instruments can result in dentinal cracks.