Caries-preventive potential of an adhesive patch after thermomechanical loading--a microbial-based in vitro study.

Purpose: To assess the enamel-protective potential of a newly devised adhesive patch for smooth enamel sealing.

Materials And Methods: Approximal surfaces of 30 extracted molars were divided into three areas: the buccal thirds were treated with a flowable composite (Tetric Flow, Ivoclar Vivadent) and served as negative control sites, the lingual thirds were left untreated and served as positive control sites, and the middle thirds served as the test areas. This was sealed with either 1.

An in vitro microbial-based model for studying caries-preventive agents.

Objective: The aim of the study was to develop an in vitro microbial-based caries model to test potentially caries-preventive agents.

Material And Methods: In this model, cariogenic Streptococcus mutans biofilms are grown on tooth samples within a reaction chamber hermetically surrounded by a bacteria-tight glove box allowing the manipulation of specimens during operation. The specimens were mounted in two rows on the inner and outer rims of a specimen turntable passing several inlet pipes transporting all necessary media.

A novel in vitro microbial-based model for studying caries formation--development and initial testing.

We report on the development and the initial testing of a new microbial-based caries model. Specimens were fixed on a rotating mount within a reaction chamber hermetically surrounded by a sterilised glove box. A cariogenic environment was obtained by inoculation with Streptococcus mutans (ATCC 25175) combined with a continuously repeating supply of sucrose solution, trypticase soy broth and artificial saliva applied by dripping.

Secondary caries-like lesions at fissure sealings with Xeno III and Delton--an in vitro study.

Objectives: The aim of the study was to establish a bacterial based in vitro caries model to test the caries preventive effect of fissure sealants and to investigate whether a self-etching adhesive (Xeno III) used as fissure sealant is equally effective in preventing secondary caries compared to a conventional sealant (Delton) when applied on saliva contaminated and non-contaminated fissures.

Methods: Forty caries-free upper premolars were randomly divided into two groups. Group A was sealed with a conventional resin-based fissure sealant (Delton) after phosphoric acid etching.