Accelerated color change in a maxillofacial elastomer with and without pigmentation.

Statement Of Problem: Maxillofacial prostheses require frequent replacement because the elastomer and its color additives undergo changes.

Purpose: This study attempted to determine whether predictable color changes occur when 3 pigments are individually incorporated into a specific silicone elastomer.

Material And Methods: The materials included an RTV elastomer; 1 natural inorganic pigment, burnt sienna; and 2 synthetic organic pigments, Hansa yellow and alizarin red.

Periodic evaluation of the occlusal vertical dimension of maxillary dentures from the wax trial denture through 48 hours after polymerization.

Purpose: This study measured the effects of commercial resin type on maxillary complete dentures with monoplane teeth by periodically comparing the occlusal vertical dimension of the polymerized dentures with the baseline, wax trial denture fiducial measurements.

Materials And Methods: Commercially available compression-molded, injection-molded, and fluid poly(methyl methacrylate) resins, as well as one compression-molded methyl acrylate ester copolymer, were evaluated. Ten dentures were fabricated from each resin using monoplane teeth.

Resin composites for foundation restorations.

This study focused on the compressive properties of two core buildup materials, Ti-Core, (EDS, Inc.) and FluoroCore, (L.D.

Compressive properties of chemically cured, resin modified glass ionomer luting cements.

This study compared the responses of three proprietary chemically cured hybrid glass ionomer luting cements to compressive loading. These cements bear the trade names Advance, Fuji DUET and Vitremer Luting Cement, and are distributed and sold through ordinary domestic and international channels of dental commerce. The findings are as follows: 1.