Friday, August 18, 2017

NuSmile Announces Inaugural NuSmile Summit

CE event designed to take pediatric dentistry to “the next level” in a beautiful setting

HOUSTON, TEXAS, August 8, 2017—NuSmile Ltd., the worldwide leader in pediatric esthetic restorative dentistry, announced today that the first-ever NuSmile Summit will be held January 19-20, 2018 in Clearwater Beach, Florida. The event’s format allows attendees to create their own schedule by choosing the specific courses that best meet their individual needs. Attendees will receive up to 16 continuing education credits from courses offered by several of the world’s most respected experts in all facets of pediatric dentistry.

“The 2018 NuSmile Summit is designed to help pediatric dentists and general practitioners who treat pediatric patients keep abreast of the latest advances in pediatric dentistry,” said Diane Johnson Krueger, NuSmile founder and CEO. “Our topics and speakers have been carefully chosen to enable attendees to take their practices to the next level regarding both treatment and practice management.”

“We’re very excited about the line-up of distinguished experts we’ve been able to assemble to lead our seminars, including several directors from the renowned Institute for Pediatric Dentistry,” said Mike Loessberg, NuSmile Director of Sales, U.S. and Canada. “The theme of the NuSmile Summit is Bringing You Next Level Education to reflect our passion for helping dentists significantly enhance both the pediatric treatment their practices provide and the productivity and profitability their practices deliver.”

One of the Summit’s highlights will be the acclaimed “Zirconia REINVENTED” hands-on workshop, in which Dr. David Salar and Dr. David Evans will provide comprehensive training in the art of placing zirconia crowns for every primary tooth. Other Next Level Treatment courses include “Radiographic Findings of Pediatric Diseases” by Dr. Shailesh Kottal, “Sedation Protocol” by Dr. Steven Wilson, and “New Approaches to Pediatric Pulp Therapy” workshop by Dr. Jessica Lee.

Next Level Practice Management courses include “Strategies for Practice Growth” by Scott Lauer, “25 Things That Changed My Practice” by Dr. William Waggoner, “Overview of Employment and Compensation Issues” by Brian Colao, and “Ready to start your own practice, where to begin?” by Matthew Veatch.

The 2018 NuSmile Summit will take place at the luxurious Grand Wyndham Resort in Clearwater Beach, Florida, recently named the “#1 Beach in the U.S.” by Trip Advisor.
Dentists may pre-register for the event by calling 800-346-5133 or visiting

About NuSmile
Founded in 1991 in Houston, Texas by Diane Johnson Krueger, NuSmile is the worldwide leader in pediatric esthetic restorative dentistry. Shortly after its founding, the company invented its first esthetic pediatric crown; more than 4 million have been used in restorations in the 25 years since. The company’s current offerings include the NuSmile ZR Zirconia crown system, featuring Try-In crowns to prevent saliva/blood contamination and NuSmile BioCem® BioActive Cement for exceptional bond strength and handling; NuSmile Signature Pre- veneered crowns; NuSmile SSC Pre-contoured crowns; and NuSmile NeoMTA® pulp therapy medicament. NuSmile prides itself on its passion for customer care, its unwavering commitment to research, and its unmatched support for American Academy of Pediatric Dentistry (AAPD), the International Association of Pediatric Dentistry (IAPD), the Canadian Academy of Pediatric Dentistry/Académie Canadienne de Dentisterie Pédiatrique (CAPD/ACPD), the Institute for Pediatric Dentistry (IPD) and several other organizations dedicated to the dental care of children and the dentists who serve them. 

Thursday, August 17, 2017

Do You Want A Copy of George Washington's False Teeth?


Wednesday, August 16, 2017

Biomechanical behavior of titanium and zirconia frameworks for implant-supported full-arch fixed dental prosthesis



The biomechanical behavior of implant-supported titanium and zirconia full-arch fixed dental prosthesis (FAFDP) frameworks require further investigation.


Strains transferred by implant-supported titanium (Ti) and zirconia (Zr) FAFDP frameworks were analyzed.

Materials and Methods

Maxillary 14-unit FAFDPs supported by 6 implants and 12-unit FAFDPs supported by 4 implants were tested. One-piece frameworks were fabricated by computer-aided design/computer-aided manufacturing. Four groups were divided (n = 3): G1, Ti-6 implants; G2, Zr-6 implants; G3, Ti-4 implants; G4, Zr-4 implants. A 250 N single-point load was applied on the second premolar. A three-dimensional digital image correlation system recorded framework and maxilla model surface deformation.


The following strains (μS) averaged over the length of the second premolar were calculated: frameworks, G1 (321.82 ± 111.29), G2 (638.87 ± 108.64), G3 (377.77 ± 28.64), G4 (434.18 ± 132.21); model surface, G1 (473.99 ± 48.69), G2 (653.93 ± 45.26), G3 (1082.50 ± 71.14), G4 (1218.26 ± 230.37). Zirconia frameworks supported by 6 implants (G2) presented higher surface strains (P < .05). FAFDPs with titanium frameworks transferred significantly lower strains to the supporting maxilla when 6 implants were used (G1) (P < .05). Both framework materials transferred similar strains when supported by 4 implants (G3 and G4) (P > .05).


Zirconia frameworks supported by 6 implants showed higher strains. FAFDPs supported by 6 implants transferred less strains to the supporting maxilla, irrespective of framework material.

Tuesday, August 15, 2017

Comparison of periodontal evaluation by cone-beam computed tomography, and clinical and intraoral radiographic examinations

Oral Radiology
pp 1–11



Cone-beam computed tomography (CBCT) has been widely used in many fields of dentistry. However, little is known about the accuracy of CBCT for evaluation of periodontal status. The objective of this study was to compare and correlate periodontal assessments among CBCT, clinical attachment loss (CAL) measurement, and periapical (PA)/bitewing (BW) radiography.


Eighty patients (28 males, 52 females; age range, 19–84 years) from the University of Texas School of Dentistry at Houston were evaluated retrospectively. Measurements were taken on the central incisors, canines, and first molars of the right maxilla and left mandible. CAL was extracted from periodontal charts. The radiographic distance from the cementum–enamel junction (CEJ) to the alveolar crest was measured for tooth mesial and distal sites on PA/BW and CBCT images using MiPacs software and Anatomage Invivo software, respectively. One-way ANOVA and Pearson analysis were performed for statistical analyses.


The CEJ–crest distances for CBCT, PA/BW, and CAL were 2.56 ± 0.12, 2.04 ± 0.12, and 2.08 ± 0.17 mm (mean ± SD), respectively. CBCT exhibited larger values than the other two methods (p < 0.05). There were highly significant positive correlations among CBCT, PA/BW, and CAL measurements at all examined sites (p < 0.001). The Pearson correlation coefficient was higher for CBCT with CAL relative to PA/BW with CAL, but the difference was not significant (r = 0.64 and r = 0.55, respectively, p > 0.05).


This study validates the suitability of CBCT for periodontal assessment. Further studies are necessary to optimize the measurement methodology with CBCT.

Monday, August 14, 2017

Dentsply Sirona World 2017 selling out fast

Come and join me at this years SiroWorld! MJ
Sign up now to reserve your spot at the Ultimate Dental Meeting before it’s too late!

CHARLOTTE, N.C. (Aug. 8, 2017) – Only a limited number of registrations remain for Dentsply Sirona World in Las Vegas. With tracks including Business and Practice Management, CEREC®, Imaging, Restorative, Endodontic, Orthodontic and more, this educational festival is designed to provide the highest caliber of education to all dental practitioners, including General Practitioners and specialists.
Kicking off on Thursday, Sept. 14, and continuing through Saturday, Sept. 16, at The Venetian and The Palazzo, Dentsply Sirona World is the ultimate educational festival for dental professionals to gain comprehensive clinical and business content throughout the day and enjoy remarkable entertainment in the evening.
Registration to Dentsply Sirona World includes access to all General Sessions and Breakout Sessions, along with the social events- including the workout session with Beachbody Super Trainer Joel Freeman and the Evening of Espionage closing party at Tao Nightclub- and all of the celebrity entertainment like the exclusive concert by Grammy-winning band Imagine Dragons.
There are multiple registration types†, including doctor, staff/spouse/guest, technician, military and government, etc. Visit for a full list of registration options and pricing.

To register now, visit and sign up before it’s too late. For any event questions, please contact the help desk by email at or by phone at 844.462.7476.

Friday, August 11, 2017

Effect of conventional irrigation and photoactivated disinfection on Enterococcus faecalis in root canals: An in vitro study


Aims: A study was done to evaluate the antimicrobial efficacy of sodium hypochlorite (NaOCl) and photoactivated disinfection (PAD) on Enterococcus faecalis.
Settings and Design: Random sampling, in-vitro study.

Subjects and Methods: Access opening and biomechanical preparation were performed on fifty freshly extracted mandibular second premolars. The specimens were sterilized; 15 μm of E. faecalis was inoculated into each canal and incubated at 36°C for 24 h. Later, specimens were randomly divided into two groups of fifty each and following procedures was carried out: (i) conventional irrigation with 2.25% NaOCl (ii) PAD using diode laser, and toluidine blue photosensitizer. Samples were collected from each canal using sterile paper points which were deposited in brain heart infusion broth, and microbiological evaluation was carried out.

Statistical Analysis Used: Student's t-test was used to find the significant difference in the reduction of colony forming unit (CFU) between the groups.

Results: The mean CFUs of the two groups showed statistically significant difference (P = 0.001). Improved antibacterial efficacy was seen with PAD group compared to conventional NAOCL irrigation.

Conclusions: NaOCl alone was not effective in eliminating E. faecalis completely from the root canals. PAD compared to conventional irrigation showed the best results in removing E. faecalis from root canals.

Balakrishna N, Moogi P, Kumar G V, Prashanth B R, Shetty NK, Rao KR. Effect of conventional irrigation and photoactivated disinfection on Enterococcus faecalis in root canals: An in vitro study. J Conserv Dent 2017;20:125-8

Thursday, August 10, 2017

Is cone beam computed tomography accurate for post-operative evaluation of implants? an in vitro study



To evaluate the accuracy of CBCT images for bone/implant interface diagnosis in comparison to periapical radiographs.

Study Design

Titanium implants were inserted in 74 bovine rib blocks in intimate contact to the bone walls, and with a gap of 0.125 mm (simulating a failure in the osseointegration process). Periapical radiographs were taken with conventional film, and CBCT scans were acquired with i-CAT (0.2mm and 0.125mm voxel) and Kodak (0.2mm and 0.076mm voxel) units. Three examiners evaluated the images using a 5-point scale. Diagnostic accuracy was analyzed through sensitivity, specificity, and the area under the ROC curve (AUC) with 95% confidence intervals (CI). Intra- and inter-examiner agreements were analyzed through Kendall's concordance test.


Intra- and inter-examiner agreements showed satisfactory results. The greatest accuracy was observed with conventional radiographs (AUC = 0.963 / CI 95% = 0.891-0.993). I-CAT 0.125mm images showed good accuracy (AUC = 0.885 / CI 95% = 0.790-0.947), with no significant difference compared to conventional radiography. Kodak images had high specificity and low sensitivity, presenting more false-negative results.


Conventional radiographs showed the highest accuracy for bone/implant interface diagnosis. However, CBCT scans (i-CAT 0.125 mm voxel), if available or if performed for pre-surgical assessment of another implant site, may provide similar accuracy.