Physico-mechanical properties and bacterial adhesion of resin composite CAD/CAM blocks: An study.

Background: The recent introduction of CAD/CAM technology has been strongly impacting the workflow in dental clinics and labs. Among the used CAD/CAM materials, resin composite CAD/CAM blocks offer several advantages. The aim of this study was to evaluate the physico-mechanical properties and bacterial adhesion of a recently introduced nanoceramic hybrid material (Grandio Blocs) comparing it to a nanoceramic CAD/CAM material (Lava Ultimate).

Bond strength of demineralized dentin after synthesized collagen/hydroxyapatite nanocomposite application.

Treatment the deeper and remineralizable carious zone (DRCZ) in dentin with various remineralizing methods, either with classic top-down or biomimetic bottom-up remineralization approaches, has remained a constant main issue to enhance dentin substrate bonding quality. The concern of remineralizing the remaining, partially demineralized and physiologically re-mineralizable collagen fibrils was the optimum target. However, applying already mineralized type I collage fibrils which have the ability to chemically cross-link with remaining collagen and minerals did not gain much interest.

Effect of Using Biomimetic Analogs on Dentin Remineralization with Bioactive Cements.

This study evaluated the impact of using biomimetic analogs (poly-acrylic acid and sodium tri-meta-phosphate) on dentin remineralization using two cement materials, the first is calcium silicate based and the second is calcium hydroxide based materials. Two standardized occlusal cavities (mesial and distal) were prepared within dentin after removal of occlusal enamel. Artificial demineralized dentin was induced through pH cycling (8 h in demineralizing and 16 h in remineralizing solutions).