Polymerization composite shrinkage evaluation with 3D deformation analysis from microCT images.

Objectives: The aim of this study was to develop a method to experimentally determine and visualize the direction and amount of polymerization shrinkage.

Methods: We modified a composite to include 1.5 wt% traceable glass beads.

Whitening effect and morphological evaluation of hydroxyapatite materials.

Purpose: To measure the efficacy of the whitening effect of non-oxidizing and non-acidic nano- and micro-hydroxyapatite materials on the enamel surface and to evaluate the surface changes after treatment.

Methods: Three hydroxyapatite suspensions and two hydroxyapatite mixtures in dissolvable polymer films were applied to a total of 30 extracted caries-free human premolars. After the last material application, a hydrodynamic shear force was generated and applied for 2 minutes to all teeth to simulate mechanical loading of the surface.

Three-body-wear resistance of the experimental composites containing filler treated with hydrophobic silane coupling agents.

This paper evaluated the wear resistance of resin composite materials with fillers which were modified with a novel hydrophobic silane coupling agent. The novel silane coupling agent containing hydrophobic phenyl group 3-(3-methoxy-4-methacryloyloxyphenyl)propyltrimethoxysilane (p-MBS) was synthesized. The experimental light-cure hybrid composites containing 85wt% of filler modified with this silane were formulated.

Micro-computed tomographic evaluation of a new enzyme solution for caries removal in deciduous teeth.

This study evaluated a new enzyme solution (SFC-V) for dentin caries removal, and obtained results were compared with Carisolv. Both solutions were used with a prototype plastic instrument - this being a modified technique for Carisolv. Five carious deciduous teeth were sectioned, and both treatments were applied alternately to each half.