Clinical performance of removable partial dentures: A retrospective clinical study

Abstract

Removable partial dentures (RPDs) (conventional and implant-supported) treatment is considered a viable option to replace missing teeth as inexpensively as possible, but it has limitations. Objectives: This study reports the effect of gender and location (maxilla vs. mandible) on the clinical performance of removable partial dentures (RPDs). Materials and Methods: A total of 100 Patients who had RPDs delivered between 1990-1995 were evaluated. A 4-point scoring system was used to assess seventeen criteria. These criteria include acceptance, stability, support, retention, adaptation, occlusion, integrity, and design of the prostheses, rest and rest seat preparation, occlusal wear, esthetics, phonetics, tissue condition, mobility of abutments, gingival and plaque indices. The data were analyzed using Kruskal-Wallis and Mann-Whitney U non-parametric statistical tests. Results: The results showed that acceptance of RPDs was rated the lowest. Other reasons for failure were poor retention, lack of integrity of the prostheses and inadequate adaptation. Retention and design of major connectors attributed to Mandibular RPD failure. Success rate of 75% was observed in male compared with 67.2% for female. Maxillary RPDs showed a higher success rate (78%) compared with the mandibular (70.1%). No significant statistical difference in Alpha scores between female and male patients and between maxillary and mandibular RPDs (p < 0.05). Conclusions: The clinical performance of RPDs showed a higher success rate in male patients compared to female patients and the maxillary RPDs showed a higher success rate compared to mandibular.

Factors Associated with Insufficient Removable Partial Denture Design Instructions

“…8 The role of RPD design in the success of the denture is an accepted fact. 2,21,22 The results of this study showed that 62.5% of the dentists offered no design information when they sent a master model or impression to the laboratory for RPD fabrication. This result is higher than the findings of Kilfeather et al (54%, England, Ireland and Wales), Radhi et al (57%, Bahrain) and Pun et al (42%, Wisconsin, USA).…”

Solução estética após falha de planejamento protético – Relato de Caso.

“…O insucesso pode ser evitado quando realizado uma oroscopia adequada, diagnóstico correto, planejamento adequado, exames clínicos e radiográficos detalhados e moldagem apropriada (4,5).…”

“…Para Etman (2012) a preparação pré-protética em PPR compreende uma série de procedimentos que objetivam modificar as superfícies dentárias para posterior adaptação da prótese. Dentre os procedimentos inclusos nessa fase temos: remoção de carie e doença periodontal, ajuste do plano oclusal, preparo de nichos, criar áreas retentivas, identificar lesão em tecidos moles, entre outros (5)(6)(7)(8).…”

“…Ao receber pacientes que não passaram por nenhum tipo de tratamento prévio à instalação da prótese, após um período de uso pelo paciente, os suportes se apresentarão abalados, com bolsas periodontais, gengiva inflamada, ocorrência de cáries sob alguns dos grampos ou apoios, mobilidade dos dentes do arco antagonista (3)(4)(5)(6)(7)(8).…”

“…Para Batista (2011) e para Tong (2012) as principais falhas biológicas na reabilitação protética está relacionada a cárie e a doença periodontal em dentes pilares, sendo estas mais frequentes do que a perda do dente pilar (1)(2)(3)(4)(5)(6).…”