Fiber-reinforced composite partial fixed dental prostheses supported by short or extra-short implants: A 10 year retrospective study

Autor(es)

Cheng, Yu-Chi ; Bergamo, Edmara T. P. ; Murcko, Laura ; Hirayama, Muneki ; Perpetuini, Paolo ; Speratti, Drauseo ; Bonfante, Estevam A.

• Tipo de documento: Artigo Científico
• Fonte: CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH; v. 24, n. 6, p. 8-pg., 2022-10-07.

Resumo

Introduction This study evaluated the 10-year survival and success of partial fixed dental prostheses (P-FDPs) fabricated with a milled fiber-reinforced composite (FRC) framework, supported by short or extra-short implants. Methods Patients restored with FRC P-FDPs supported by short or extra-short implants were included in this retrospective study. Kaplan-Meier analysis was used to calculate the survival and success rates of the prostheses. Univariate and multivariate Cox regression models, clustered to adjust for multiple implants and prostheses being placed in the same patient, were used to correlate changes in peri-implant bone levels with patient, implant, and prosthesis-related covariates. Results This study followed 121 FRC P-FDPs supported by 261 implants, placed in 96 patients. At 118 months in function, the P-FDP survival rate was 95.9% (95% CI: 87.5%-98.7%), and the success rate was 89.8% (95%CI: 80.4%-94.8%). Differences in prosthesis span length, abutment/pontic ratio, and the presence of distal extensions (cantilevers) did not affect the prosthetic outcomes. Bone levels around implants were stable, with an average rate of change of -0.01 +/- 0.05 mm/month. Cox regression revealed that grafted sites were correlated with peri-implant bone loss, while longer prosthetic spans were correlated with bone gain. Conclusion P-FDPs comprised of milled fiber-reinforced composite frameworks, supported by short and extra-short implants, had high survival and success rates for up to 10 years. (AU)

• Processo FAPESP: 19/08693-1 - Compósitos experimentais à base de alumina e zircônia infiltrados por vidro: caracterização microestrutural e das propriedades ópticas e mecânicas.
• Beneficiário: Edmara Tatiely Pedroso Bergamo
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 21/06730-7 - Rumo à zircônia sustentável reciclada a partir do descarte de usinagem e melhorada por infiltração graduada e ao desenvolvimento de blocos de zircônia multicamada resistentes, graduados, e não suscetíveis ao envelhecimento
• Beneficiário: Estevam Augusto Bonfante
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores - Fase 2
• Processo FAPESP: 21/08018-2 - Caracterização nanomecânica de compósitos ZTA e ATZ infiltrados por vidro
• Beneficiário: Edmara Tatiely Pedroso Bergamo
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado