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Short‐term report of an ongoing prospective cohort study evaluating the outcome of full‐arch implant‐supported fixed hybrid polyetheretherketone‐acrylic resin prostheses and the All‐on‐Four concept
Author(s) -
Maló Paulo,
de Araújo Nobre Miguel,
Moura Guedes Carlos,
Almeida Ricardo,
Silva António,
Sereno Nuno,
Legatheaux João
Publication year - 2018
Publication title -
clinical implant dentistry and related research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.338
H-Index - 85
eISSN - 1708-8208
pISSN - 1523-0899
DOI - 10.1111/cid.12662
Subject(s) - prosthesis , peek , medicine , dentistry , arch , implant , dental prosthesis , rehabilitation , edentulism , prospective cohort study , surgery , materials science , physical therapy , composite material , civil engineering , engineering , polymer
Background More research is needed on the study of new materials for fixed prosthetic implant‐supported rehabilitations. Purpose The purpose of this study was to report the short‐term outcome of full‐arch implant‐supported fixed hybrid polyetheretherketone (PEEK)‐acrylic resin prostheses and the all‐on‐four concept. Materials and Methods This prospective cohort clinical study included 37 patients (29 women, eight men) with an average age of 60 years (range: 38‐78 years) with 49 full‐arch hybrid PEEK‐acrylic resin prosthesis supported by implants through the all‐on‐four concept. Primary outcome measures were prosthetic survival. Results Two patients with two maxillary prostheses were lost to follow‐up. One patient with a double full‐arch rehabilitation fractured the mandibular PEEK framework, rendering a 98% prosthetic survival rate. No implants were lost. The average (SD) marginal bone remodeling after 1 year of follow‐up was 0.37 mm (0.58 mm). Technical complications concerning the veneer adhesion occurred in six patients and were resolved in all patients (with exception of the patient with prosthetic failure) through the creation of mechanical retentions and changing the bonding primer. Mechanical complications occurred in three patients and five prostheses consisting in prosthetic screw loosening ( n = 2 patients) and fracture of the acrylic resin teeth (the patient with a prosthetic failure). Conclusions Within the limitations of this study, the results suggest that hybrid polymer (PEEK)‐acrylic resin prostheses supported by implants for full‐arch rehabilitation may represent a valid treatment option, still requiring longer‐term validation.