One Year Clinical Evaluation of Milled BioHPP Polyetheretherketone (PEEK)-Based versus Metal Ceramic Single Crowns (Randomized Controlled Clinical Trial)

Objective: To evaluate the clinical behavior of milled BioHPP PEEK copings veneered with Visio.lign composite resin in comparison metal feldspathic porcelain as single posterior crowns. Material and Methods: Twenty Four full coverage crowns were fabricated for endodontically treated molars divided into 2 groups according to material used. Twelve PEEK-based (Group 1) Porcelain Fused Metal (PFM) 2). The preparations standardized an equi-gingival, deep chamfer finish line all teeth. by CAD/CAM technology lost wax technique respectively. These coping manufactures instructions either special or low fusing glass ceramic restorations cemented then evaluation these was assessed regarding mechanical failure, marginal integrity patient satisfaction every two months one year. Results: Although fractured, both PFM showed similar fracture (mechanical failure) without significant difference (P > 0.05). statistically significantly lower than after six (P-value = 0.013, Effect size 1.157) but patients generally satisfied. Conclusion: clinically accepted less patient’s months. So may be used alternative tooth-colored metal-free fixed restoration Keywords BioHPP; ceramic; Patient satisfaction; PEEK; PFM.