Bond strength of artificial teeth to thermoplastic denture base resin for injection molding

This research was conducted to investigate the bond strength between artificial teeth and a thermoplastic denture base resin for injection molding with different surface preparations use in flexible removable partial dentures. Composite acrylic were bonded three types of resins (polyamide, polyester, polycarbonate) conventional heat-polymerized polymethyl methacrylate (PMMA) (control). The ridge lap surfaces classified into four groups based on type treatment applied (n=10): no treatment, ethyl acetate, small T-shaped tunnel, large tunnel. specimens tested strength. results showed that acetate ineffective enhancing (p>0.05) molding, whereas tunnel quite effective this regard (p<0.05).