SOBREVIVÊNCIA DE PRÓTESES PARCIAIS REMOVÍVEIS

• Autor(a) principal: Prado, Mayara Colpo
• Data de Publicação: 2020
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional Universidade Franciscana
• Texto Completo: http://www.tede.universidadefranciscana.edu.br:8080/handle/UFN-BDTD/910
• topic: Estudo clínico. Prótese parcial removível. Sobrevivência; Clinical study. Removable partial denture. Survival; Ciências da Saúde e da Vida

The aim of this study is to verify the rates of use and non-use of removable partial dentures (RPDs), as well as the associate factors. This retrospective clinical study was conducted from May to December 2019 at the dental practice clinic of Franciscan University, Santa Maria, Rio Grande do Sul, Brazil. The sample consisted of patients with RPDs made from 2008 to 2017 by undergraduate students. The use or non-use of the prosthesis by the patient was determined and the variables related to the patients, oral health and the prosthesis were collected. The data were analyzed with SPSS software. Descriptive analysis was used, evaluation of prosthesis longevity by the Kaplan–Meier method and log-rank test ( = 0.05) to check differences between variables. The annual failure rate was also calculated. In addition, Cox regression analysis was applied looking for associations between the collected variables and the outcome, with confidence interval of 95%. A total of 423 patients with RPD were identified. However, it was possible to approach only 265 patients. Of these, 86 did not accept to be evaluated and 19 did not attend the scheduled appointment, resulting in a response rate of eligible patients of 60.38% (160 patients) where 221 prostheses were evaluated. The mean follow-up time was 4.89 (± 1.95) years, where 35.75% (79 prostheses) of the RPDs were not being used by the patients at the time of the evaluation. For the log-rank test, patients who reported pain (p <0.001), poor masticatory efficacy (p <0.001), unsatisfactory perception of oral health (p = 0.014) and a number of rehabilitated teeth less than or equal to 5 teeth showed less survival of their prostheses (p = 0.018). In addition, Cox regression demonstrated that patients who reported pain with the use of their RPD were 1.8 times more likely to stop using their prostheses (p = 0.035). Patients who reported poor masticatory efficacy had a 2.2 times greater risk of not using their prostheses (p = 0.004). In contrast, patients who use medications that can interfere negatively with saliva, had 57% less risk of stopping the use of their prostheses (p = 0.006). Pain and masticatory efficacy proved to be the main factors associated with non-use of RPD. It is important to check patients' perceptions and expectations regarding oral health and prosthesis to obtain acceptable survival of RPDs.