evaluation on the bonding strength of three types of Iranian denture teeth with denture acrylic base as compared with Ivoclar

ABSTRACT

Acrylic resins are nowadays widely used in denture teeth and denture bases. The quality of these materials are mostly judged based on their physical-mechanical and chemical properties. The goal of this study was to compare the bonding strengths of Ideal-Makoo, Acrydent, Acradent and Ivoclar denture teeth with acrylic bases according to ISO 3336 standard. In order to compare different groups based on the standards, six anterior teeth of each set should be evaluated. Following samples comparison with the standards, the number of samples should be increased. Totally, 120 Samples were examined in the present study [n=30]. Having the samples being fixed on the mold, tensile bond strength test was performed using universal testing machine [made By HOUNSFIELD. H 10 KS company]. The fracture force was recorded and analysed by one-way ANOVA test. The average bonding strength of most of the teeth were within the standard range and could fulfill patients' needs. According to ANOVA analysis [P=0.049], there were significant differences in the applied forces between four groups. Ivoclar showed the minimum force. The mean tensile forces of Iranian teeth were similar and almost 34% more than Ivoclar teeth