A matrix procedure for reproducing natural or carved tooth contours in porcelain laminate veneers.

A procedure is described for making porcelain laminate veneers by using a preformed acrylic resin matrix to reproduce the original tooth form and surface texture. The procedure can be modified to allow alterations to the original contours by adding wax to, or carving, a preliminary cast. A silicone impression is made of either the teeth preoperatively or the altered cast and is used to construct a translucent heat-cured acrylic resin matrix.

Effect of glass ionomer liners on bonding strength of laminate veneers.

This study compared shear bond strengths of porcelain laminate veneers, fabricated on refractory dies, which were lengthened incisally by 0.5 mm. Specimens were divided into four separate groups.

Evaluation of the level of residual monomer in acrylic denture base materials having different polymerization properties.

The aim of this study was to evaluate the level of residual monomer in acrylic denture base materials having different polymerization properties. The investigation included a conventional-type acrylic cured under heat and pressure, as well as a pour-type resin polymerized by an injection-moulding technique at room temperature and under pressure. It was found that the residual monomer content ranged from 0.