The Role of Surface Treatments On the Shear Bond Strength of Artificial Teeth to the Denture Base

Abstract

The study examined the bond between different denture base resins and highly cross-linked acrylic denture teeth with different base surface-conditioning methods. Fourty specimens are prepared from two main groups, each group used a different type of heat cure acrylic resin denture base material .A, B (Rodex&Pigon) Each main groups subdivided into four subgroups according to surface treatment A1, B1=control, no surface conditioning A2, B2=retention groove, A3, B3=grinding, A4, B4=application of methyl methacrylate monomer, After 24 ho of storage in distilled water, compressive load was applied at 90° on the palatal surface of each tooth until fracture.
Results: The statistical analysis showed that there were statistically no significant differences between the two type of denture base in improvement of shear bond strength, surfaces treatment of the teeth provided different bond between the acrylic denture base &teeth.