Denture teeth bond strength to microwave cured denture base material

Bonding of acrylic resin teeth to the denture base material is an important property. Failures of bonding occurs which may result in the expense of repair and possible danger to the patient. The aims of this study are to (1) Investigate the effect of the following variables on the shear bond strength (SBS) of acrylic teeth to acrylic denture base material: A-curing techniques (water bath and microwave). B-surface treatment with monomer. C-cross ¿ linking of the tooth resin. (2). design and prepare a metal mold used for production of Fiber Re-inforced plastic (FRP) flask suitable for curing of acrylic resin by microwave irradiation. The FRP flask is not available in our country so a special design of metal mold was prepared for this study. Inner dimensions were determined according to standard Ash metal flask. A microwavable flask was fabricated from unsaturated polyester resin re-inforced with glass fibers which are available in our country.