The effect of custom tray material type and fabrication technique on tensile bond strength of impression material adhesive systems.
The purpose of this investigation was to evaluate the tensile bond strengths of two impression material systems (polysulphide and polyvinyl siloxane) to two custom tray materials [autopolymerizing and visible light-cured (VLC) acrylic resin]. The effect of polymerizing the tray materials directly against wax spacer and tin foil was evaluated for each material. Polymerizing tray materials against tin foil significantly increased the bond strengths of polysulphide and polyvinyl siloxane impression materials to VLC and autopolymerizing acrylic resin tray materials. Polyvinyl siloxane VLC cured against tin foil combination produced the strongest bond. The VLC resin tray material generated greater bond strength than autopolymerizing acrylic resin when polymerized against tin foil.
Abdullah
M A
MA
Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia. ytalic@ksu.edu.sa
Talic
Y F
YF
D000180:Acrylic Resins / Q000737:chemistry; D000268:Adhesiveness; D003760:Dental Impression Materials / Q000737:chemistry*; D006801:Humans; D046911:Macromolecular Substances; D008422:Materials Testing; D011145:Polyvinyls / Q000737:chemistry; D012833:Siloxanes / Q000737:chemistry; D013440:Sulfides / Q000737:chemistry; D013718:Tensile Strength; D014885:Waxes
D000180:Acrylic Resins; D003760:Dental Impression Materials; D046911:Macromolecular Substances; D011145:Polyvinyls; D012833:Siloxanes; D013440:Sulfides; D014885:Waxes; C034183:vinyl polysiloxane; C032915:polysulfide