Comparison of retentive forces between telescopic crowns made of poly(ether ether ketone) and type 4 gold alloy

In this study, retentive forces were compared between telescopic crowns (TSC) made with poly(ether ether ketone) (PEEK) using computer-aided design and manufacturing type 4 gold alloy the conventional method. The of TSCs evaluated by performing a pull-out test primary secondary crowns. Initial force was approximately 12 N for both PEEK TSCs. TSC 6.5 after 10,000 cycles insertion removal. reduction rate in smaller TSC. displayed greater surface roughness on crown to Surface slightly increased at cervical margin repetitive than TSC, however adequate stabilizing dental prostheses even cycles.