Treatment and esthetic management of traumatized maxillary central incisors with endodontic therapy and the inside/outside bleaching technique: A clinical report.

Traumatic dental injuries most commonly occur to the maxillary central incisors, occasionally resulting in tooth discoloration and prompting affected patients to seek dental treatment. Other negative sequelae of trauma to teeth include root resorption that can complicate definitive treatment planning to manage discoloration. This article describes the conservative esthetic management of discolored traumatized teeth through the inside/outside bleaching technique after endodontic therapy for external inflammatory root resorption.

Film thickness of crown disclosing material and its relevance to cementation.

Statement Of Problem: Regardless of the type of indirect restoration being fabricated, optimizing fit at cementation is a challenge. Several disclosing agents have been recommended to identify intaglio surface contacts that may result in incomplete seating and poorly adapted margins. The International Organization for Standardization has established a standard of 25 μm for the maximum film thickness for water-based cements.

A quadrant tray and bite registration as an alternative to dual-arch impressions for fixed prosthetics: a clinical and dental laboratory technique.

To perform fixed prosthodontic procedures, dentists take a full-arch or quadrant impression and articulate the casts. The dual-arch impression technique is a popular quadrant technique for crown fabrication. The technique described in this article, which uses a quadrant impression and separate interocclusal record, offers several advantages over the traditional dual-arch method.

Comparison of traditional and low sensitivity whiteners.

This placebo-controlled, double-blind randomized clinical trial compared five 10% carbamide peroxide tooth whitening formulations. Three products contained varying concentrations of potassium nitrate as desensitizers. One contained no desensitizers and one was a placebo.

Duration and timing of sensitivity related to bleaching.

Problem: Reports of sensitivity vary greatly from one study to another, probably because studies are small. Generally, only the percentage of subjects is reported.

Purpose: This study reports sensitivity using a large database.

Detection of pandemic Vibrio parahaemolyticus O3:K6 serovar in Gulf of Mexico water and shellfish using real-time PCR with Taqman fluorescent probes.

We describe a real-time multiplexed PCR method using Taqman probes for the detection of total and pandemic Vibrio parahaemolyticus O3:K6 serovar in oysters and Gulf of Mexico water (gulf water). The specificity of these primers and probes was tested for amplification of a 450 bp thermolabile hemolysin (tlh) and a 369 bp ORF8 amplicon representing all V. parahaemolyticus and post-1996 clinical isolates of pandemic serovar O3:K6, respectively.

Performance of 2 packable composites at 12 months.

Objective: The purpose of this randomized, double-blind, clinical trial was to compare the marginal seal of 2 packable resin composite materials in moderate to large lesions on molars.

Method And Materials: Fifty participants in need of a moderate to large Class 2 or complex Class 1 molar restoration were randomly distributed into 4 groups, to receive either Alert (Jeneric/Pentron) or SureFil (Dentsply/Caulk) resin composite with or without a surface sealer. Each participant received one restoration.

Predictors of non-carious loss of cervical tooth tissues.

This Predictor Variables study is designed to determine which one of 11 factors evaluated may be correlated to Non-carious Loss of Cervical Tooth Tissues (NLCTT) using subjects with and without NLCTT. The ultimate objective is to successfully predict the path toward risky behaviors and reduce the incidence of NLCTT.

Rapid detection of Vibrio vulnificus in shellfish and Gulf of Mexico water by real-time PCR.

In this paper we describe optimization of SYBR Green I-based real-time PCR parameters and testing of a large number of microbial species with vvh-specific oligonucleotide primers to establish a rapid, specific, and sensitive method for detection of Vibrio vulnificus in oyster tissue homogenate and Gulf of Mexico water (gulf water). Selected oligonucleotide primers for the vvh gene were tested for PCR amplification of a 205-bp DNA fragment with a melting temperature of approximately 87 degrees C for 84 clinical and environmental strains of V. vulnificus.

PCR detection of a newly emerged pandemic Vibrio parahaemolyticus O3:K6 pathogen in pure cultures and seeded waters from the Gulf of Mexico.

This study describes the optimization of PCR parameters and testing of a wide number of microbial species to establish a highly specific and sensitive PCR-based method of detection of a newly emerged pandemic Vibrio parahaemolyticus O3:K6 strain in pure cultures and seeded waters from the Gulf of Mexico (gulf water). The selected open reading frame 8 (ORF8) DNA-specific oligonucleotide primers tested were found to specifically amplify all 35 pathogenic V. parahaemolyticus O3:K6 pandemic isolates, whereas these primers were not found to detectably amplify two strains of V.

Clinical evaluation of a 3% hydrogen peroxide tooth-whitening gel.

Purpose: The purpose of this randomized double-blind investigation was to clinically evaluate the effectiveness of a commercially available 3% hydrogen peroxide tooth-whitening material (ADS Tooth Whitening Gel, Applied Dental Sciences, Inc., Lee, MA). The material was used over 2 weeks in a dentist-supervised, patient-applied application.

Sensitivity and tooth whitening agents.

Purpose: Three commercially available dentist-prescribed home-applied bleaching systems were evaluated to identify the incidence of sensitivity and to compare the efficacy of whitening the maxillary anterior teeth of 18 patients.

Methods: NiteWhite Excel 2Z (Discus Dental), fx (Challenge Products), and Rembrandt Xtra-Comfort (DenMat Corp.) were randomly assigned to six patients each.

Comparison of luting cements for minimally retentive crown preparations.

Objective: The purpose of this study was to compare the retentive strengths of resin, glass-ionomer, and zinc phosphate cements under adverse conditions.

Method And Materials: Thirty extracted teeth were mounted and prepared in their long axis. The axial wall height was 3 mm and the convergence angle was 28 degrees.