No abstract

The aim of this study was to review and summarize the in vitro and clinical data on the use of glass-fiber posts concerning recent changes in the philosophy, materials, and technology that have impacted significantly the art and science of endodontic post placement. Original scientific papers or reviews listed in the Medline or ISI Web of Science databases from 1981 to 2013 were searched electronically using the following key words: endodontically-treated teeth, glass-fiber post, dentistry, resin cement, silane, and adhesive. The literature supports the use of a post when the remaining coronal structure is insufficient to provide retention for the restoration. Concerning which post to select, glass-fiber posts offer two important advantages: the elastic modulus is similar to that of dentin, and these posts and the respective core build-ups are cemented by an adhesive technique. However, some issues remain unclear. Randomized controlled trials are needed to confirm whether the use of silane influences the bonding and whether self-adhesive resin cements constitutes a reliable clinical option. Overall, the use of fiber posts is an important clinical option in dentistry, but clinicians should be aware of the difficulties in achieving good adhesion within the root canal.

The aim of this study was to assess the effect of triazine incorporation to denture materials on biofilm formation of saliva derived from microcosms of patients who are positive for Candida albicans. Biofilms were formed on microwave-cured acrylic resin, one hard denture liner, and two soft denture liners containing 0, 2.5, 5, and 10% triazine. For experimental subset (n = 10), mechanical properties of the materials and colony-forming unit counts from the biofilms formed on the materials were assessed. Flexural strength and modulus decreased with the addition of 2.5% triazine (p < 0.01). In general, the addition of 5 and 10% triazine leaded to more soluble materials (p < 0.001). Saliva donor with candidiasis resulted in higher counts of total microorganisms (p = 0.0294) and Streptococci (p = 0.0008). Soft denture liners showed the highest counts for total microorganisms, Streptococci, and Candida species (p < 0.001). The addition of triazine directly to denture materials was not beneficial in reducing biofilm formation in a complex biofilm model.

No abstract

No abstract