Clinical aspects of the use of dental adhesive materials in patients with chronic xerostomia

This is a Good FYI for your older denture wearing patients. MJ

Bogucki, Z. A. (2013), Clinical aspects of the use of dental adhesive materials in patients with chronic xerostomia. Gerodontology, 30: 162–166. doi: 10.1111/j.1741-2358.2012.00659.x

Adhesives are commonly used by denture wearers to increase the retention and stability of the complete denture, to improve the chewing and masticatory abilities and to psychologically support the patient to make the complete denture more acceptable. Denture fixatives can be especially recommended for use and to aid retention for patients with dryness of the mouth, poor secretion of saliva and xerostomia (e.g. diabetes mellitus). Dental adhesives may be contaminated with bacteria, yeast and fungi during the manufacturing process, and they have been shown to initiate and promote microbial growth. Some products have been shown to release formaldehyde, which is cytotoxic to cell culture and fibroblasts and is a potent allergen. Patients with chronic xerostomia may use denture adhesives during the course of the treatment and disease. These patients are often immunocompromised, and microorganisms they are exposed to must be considered potential pathogens.

Marginal quality of posterior microhybrid resin composite restorations applied using two polymerisation protocols: 5-year randomised split mouth trial

Good to know that curing rates of composite do not change outcomes. MJ

 

Journal of Dentistry

Volume 41, Issue 5, May 2013, Pages 436–442

Abstract

Objectives

This randomised, split-mouth clinical study evaluated the marginal quality of direct Class I and Class II restorations made of microhybrid composite and applied using two polymerisation protocols, using two margin evaluation criteria.

Methods

A total of 50 patients (mean age: 33 years) received 100 direct Class I or Class II restorations in premolars or molars. Three calibrated operators made the restorations. After conditioning the tooth with 2-step etch-and-rinse adhesive, restorations were made incrementally using microhybrid composite (Tetric EvoCeram). Each layer was polymerised using a polymerisation device operated either at regular mode (600–650 mW/cm² for 20 s) (RM) or high-power (1200–1300 mW/cm² for 10 s) mode (HPM). Two independent calibrated operators evaluated the restorations 1 week after restoration placement (baseline), at 6 months and thereafter annually up to 5 years using modified USPHS and SQUACE criteria. Data were analyzed using Mann–Whitney U-test (α = 0.05).

Results

Alfa scores (USPHS) for marginal adaptation (86% and 88% for RM and HPM, respectively) and marginal discoloration (88% and 88%, for RM and HPM, respectively) did not show significant differences between the two-polymerisation protocols (p > 0.05). Alfa scores (SQUACE) for marginal adaptation (88% and 88% for RM and HPM, respectively) and marginal discoloration (94% and 94%, for RM and HPM, respectively) were also not significantly different at 5th year (p >0.05).

Conclusion

Regular and high-power polymerisation protocols had no influence on the marginal quality of the microhybrid composite tested up to 5 years. Both modified USPHS and SQUACE criteria confirmed that regardless of the polymerisation mode, marginal quality of the restorations deteriorated compared to baseline.

Clinical and radiographic outcomes of a combined resective and regenerative approach in the treatment of peri-implantitis: a prospective case series

Matarasso S, Iorio Siciliano V, Aglietta M, Andreuccetti G, Salvi GE. Clinical and radiographic outcomes of a combined resective and regenerative approach in the treatment of peri-implantitis: a prospective case series. Clin. Oral Impl. Res. 00, 2013; 1–7.

Abstract

Aim

To assess the clinical and radiographic outcomes applying a combined resective and regenerative approach in the treatment of peri-implantitis.

Materials and methods

Subjects with implants diagnosed with peri-implantitis (i.e., pocket probing depth (PPD) ≥5 mm with concomitant bleeding on probing (BoP) and ≥2 mm of marginal bone loss or exposure of ≥1 implant thread) were treated by means of a combined approach including the application of a deproteinized bovine bone mineral and a collagen membrane in the intrabony and implantoplasty in the suprabony component of the peri-implant lesion, respectively. The soft tissues were apically repositioned allowing for a non-submerged healing. Clinical and radiographic parameters were evaluated at baseline and 12 months after treatment.

Results

Eleven subjects with 11 implants were treated and completed the 12-month follow-up. No implant was lost yielding a 100% survival rate. At baseline, the mean PPD and mean clinical attachment level (CAL) were 8.1 ± 1.8 mm and 9.7 ± 2.5 mm, respectively. After 1 year, a mean PPD of 4.0 ± 1.3 mm and a mean CAL of 6.7 ± 2.5 mm were assessed. The differences between the baseline and the follow-up examinations were statistically significant (P = 0.001). The mucosal recession increased from 1.7 ± 1.5 at baseline to 3.0 ± 1.8 mm at the 12-month follow-up (P = 0.003). The mean% of sites with BoP+ around the selected implants decreased from 19.7 ± 40.1 at baseline to 6.1 ± 24.0 after 12 months (P = 0.032).

The radiographic marginal bone level decreased from 8.0 ± 3.7 mm at baseline to 5.2 ± 2.2 mm at the 12-month follow-up (P = 0.000001). The radiographic fill of the intrabony component of the defect amounted to 93.3 ± 13.0%.

Conclusion

Within the limits of this study, a combined regenerative and resective approach for the treatment of peri-implant defects yielded positive outcomes in terms of PPD reduction and radiographic defect fill after 12 months.

Evaluating the efficiency of caries removal using an Er:YAG laser driven by fluorescence feedback control

The Kavo Key laser is not available in the United States. MJ 

Archives of Oral Biology
Volume 58, Issue 6 , Pages 603-610, June 2013

Abstract 

Introduction

Caries lesions in dental hard tissues autofluoresce when exposed to light of certain wavelengths, whereas sound tissues do not, and this can be used as an in vitro histological marker for dental caries. Detection of autofluorescence is the basis of KaVo DIAGNOdent™ technology, and provides objective feedback control of laser-stimulated ablation of dental caries for the KaVo Key Laser 3™. This Er:YAG laser operates at 2940nm wavelength, and is effective at removal of infected dental hard tissues. Micro-computed tomography (micro-CT) allows the non-invasive investigation of three-dimensional structures and analysis of mineral density profiles of dentine following laser ablation.

Objective

To evaluate removal of infected, demineralised dentine by Er:YAG irradiation with a laser feedback mechanism, using micro-CT.

Design

27 carious teeth (1 control) and 1 sound tooth, treated with the KaVo Key Laser 3™ using a KaVo™ non-contact 2060 handpiece at specific feedback settings, were examined using a Skyscan 1172 Micro-CT, to observe the efficiency of demineralised dentine removal. Grey scale images obtained were colour rendered to assist detection of demineralised tissue if present.

Results

Complete removal of demineralised tissue occurred with laser-stimulated ablation under feedback control at values of 7 and 8 when measured by micro-CT. At greater values, removal of demineralised dentine was incomplete.

Conclusion

Examination of dental tissues by micro-CT allowed determination of the efficiency of Er:YAG laser-stimulated ablation. Feedback control of the KaVo Key Laser 3™ appeared to operate like a cut-off switch when infected dentine was eliminated, at a threshold of between 6 and 7.

The Pogues' Shane MacGowan appeals for dentist to fix his teeth so he can start film career Read more at http://www.nme.com/news/the-pogues/70254#Au2MO3QpixixMIjs.99

The Pogues' Shane MacGowan is searching for a dentist who can fix his infamously bad teeth so he can start a Hollywood film career. 

Shanes, girlfriend Victoria Mary Clarke has launched an appeal on Twitter for a dentist to fix his gnashers and also promised that the frontman would front an advertising campaign in exchange for the work. 

The Pogues' official Twitter account have also backed the search, writing: "ALERT! Job offer of lifetime. Any Pogues/Shane Mac fans who are great dentists please tweet @Victoriamary to work on the great man himself!"

Currently Shane has a denture. So if your interested Tweet Victoria 

Read more at http://www.nme.com/news/the-pogues/70254#Au2MO3QpixixMIjs.99 

Henry Schein Introduces some new products.

HENRY SCHEIN

^® INTRODUCES MAXIMA

^® CURING LIGHT METER

Henry Schein^® introduces Maxima^® Curing Light Meter for use with both LED and halogen curing lights. Compact and easy to use, this instantaneous digital display measures curing intensity and light-guide temperature. The temperature feature provides an overheating safeguard and comes with 3 AAA batteries along with a 1-year warranty.

Henry Schein^® is the exclusive distributor of Henry Schein^® Brand products.

HENRY SCHEIN^® INTRODUCES NEW ACCLEAN^® ORTHODONTIC KIT WITH LIGHTED MIRROR

Henry Schein^® introduces new Acclean®Orthodontic Kit With Lighted Mirror which comes prepacked in a clear, colorful plastic carrying case. The patient kit contains a lighted angle mirror, dual-head toothbrush, ortho wax, end-tufted brush, waxed dental floss, floss threader, and an interdental brush. This deluxe kit provides orthodontic patients with what they need to maintain a healthy smile.

Henry Schein^® is the exclusive distributor of Henry Schein® Brand products.

For additional information contact: Henry Schein Dental at 1-800-372-4346

(8 a.m. - 9 a.m. EDT) or visit the Web site at www.henryscheindental.com.

AGD Committed to Communities Receiving Quality Oral Health Care: Questions incorrectly analyzed data by Pew Children ’s Dental Campaign

CHICAGO (May 7, 2013)

—More than 16 million U.S. children suffer from dental decay, and research shows that many parents lack basic information about oral health. The Academy of General Dentistry (AGD) calls for dental organizations to work together to create sustainable strategies to improve oral health outcomes for all Americans, especially children.

A few states in the U.S. are considering implementing a dental therapist model to improve oral

health and they may be utilizing a March 2013 report from the Pew Children’s Dental Campaign

(“Dental Therapists in New Zealand: What the Evidence Shows”) to make their decision. The

AGD cautions that this report contains misleading information about the “success” of this model.

The Pew report makes an incorrect comparison between New Zealand and the United States;

New Zealand has had a dental therapist program sincethe 1920s. Authors of the report write that

only 3 percent of children ages 5 to 11 in New Zealand have untreated dental decay in their

permanent teeth, as compared to 20 percent of the same age group of children in the U.S.

However, the 20 percent refers to decay in primary andpermanent teeth in U.S. children. In

reality, while 2.7 percent of children in the age group in New Zealand suffer from untreated

dental decay in their permanent teeth, another 17.3% of these children suffer from untreated

dental decay in their primary teeth. The amount of decay is almost the same in both nations,

thereby invalidating the argument that a dental therapist model may reduce the prevalence of

children’s dental decay.

“The fact that the percentage of children suffering

from untreated dental decay is almost identical in both countries is a clear sign that a dental therapist model does not help to decrease untreated dental decay in children,”says AGD President Jeffrey M. Cole, DDS, MBA, FAGD. “We all want the same thing: a system that provides the best quality of oral health care to all Americans. 

We hope to work with Pew and other dental organizations to identify joint strategies for boosting

access to and utilization of the oral health care services already established.”

The authors of the Pew report also claim that more than 1,000 studies exist to show that dental

therapists across the globe offer quality care. The American Dental Association

already has refuted that claim, explaining that those studies failed to find a positive impact of dental

therapists on the overall health status of a population.

“We believe that no child should experience pain or suffer broader health issues resulting from

untreated dental disease and conditions. But we don’t agree that implementing a dental therapist

model throughout our country will help to decrease the percentage of children who have

untreated tooth decay,” said Dr. Cole. 

Rather than using funds to analyze the dental therapist model, the AGD urges Pew to instead

strategize and develop a plan for improving oral health literacy, and subsequently influencing

families to utilize quality oral health programs that already exists in the U.S.; a system of care

that is provided by or under the supervision of a licensed dentist. 

“By educating children, their parents, or caregivers on the importance of having and maintaining

good oral health, we can help improve the overall well-being of our children,” said Dr. Cole.

About the Academy of General Dentistry

The Academy of General Dentistry (AGD) is a professional association of 38,000 general

dentists dedicated to providing quality dental care and oral health education to the public. AGD

members stay up-to-date in their profession through a commitment to continuing education.

Founded in 1952, the AGD is the second largest dental association in the United States, and it is

the only association that exclusively represents the needs and interests of general dentists. A

general dentist is the primary care provider for patients of all ages and is responsible for the

diagnosis, treatment, management, and overall coordination of services related to patients’ oral

health needs. For more information about the AGD, visit

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