Carreiro, Adriana da Fonte PortoTorres, Ana Clara Soares Paiva2018-12-282018-12-282018-09-14TORRES, Ana Clara Soares Paiva. Prótese total mandibular sobre implantes: fatores que influenciam no sucesso da reabilitação. 2018. 117f. Tese (Doutorado em Saúde Coletiva) - Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal, 2018.https://repositorio.ufrn.br/jspui/handle/123456789/26420Objective: The objective of this study was to evaluate a set of factors that may interfere in the success of total rehabilitation in the lower arch through the analysis of the quality of life related to oral health, masticatory performance, complications and peri-implant health (soft and hard tissues) with total removable or fixed prostheses on implants opposed to conventional complete dentures. Materials and methods: Oral health-related quality of life using the Oral Health Impact Profile for edentulous (OHIP-EDENT), masticatory performance (PM) (granulometric method - identification of X50), occurrence of prosthetic complications and peri-implant tissues health in patients wearing mandibular overdenture on 2 implants with bar-clip attachment system (GO) or with mandibular fixed total dentures on 4 or 5 implants (GF). The peri-implant tissues were evaluated for plaque index in the mini-abutment (PI), probing depth (PD), bleeding index, presence of peri-implant inflammation, keratinized mucosa zone, marginal mucosa level (MML) and bone loss (BL). Follow-up times were 3 (T1) and 12 (T2) months and 2 (T3), 3 (T4) and 4 years (T5) after rehabilitation. For analysis of the statistical differences in each group and over time the Mann-Whitney, Wilcoxon and Friedman tests were used, with a significance level of 5%. Results: The sample consisted of 39 patients with a mean age of 63.90 years (± 8.39). The results showed that mean values of total OHIP for all patients increased from 5 to 6.60 and 6.71 in 2 (n = 33), 3 (n = 30) and 4 years (n = 28). In these times the same thing happened with the X50 that increased from 5.68 mm to 6.25 mm and 6.33 mm. In T4, GO had a greater negative impact of oral health on quality of life in the physical dysfunction domain (p = 0.019). Overdenture patients experienced worsening of PM over time (p = 0.001). Regarding the complications, GO there are 2.28 more times chances of complications occurring. The PI increased over time in the fixed prosthesis group (p = 0.042) and was higher in this group than in the GO from the first year of use of the prosthesis (p <0.05). The PS values increased in GO over time (p <0.001). Bleeding was higher in GF than in GO in T3 and T4 (p <0.05) and MML remained negative in GF at all times (p <0.05), indicating a higher risk of exposure of implant threads in this group. Bone loss over time increased among patients with fixed prosthesis (p <0.001) and was greater than that observed in the overdenture group at 2, 3 and 4 years (p <0.05). Conclusions: It was concluded that both treatments resemble the impact on quality of life and masticatory performance, however, patients rehabilitated with overdentures are more propensity to the occurrence of prosthetic failures. While patients who were rehabilitated with fixed prosthesis had less favorable peri-implant tissue conditions.Acesso AbertoMandíbulaPrótese totalImplante dentárioPrótese total mandibular sobre implantes: fatores que influenciam no sucesso da reabilitaçãodoctoralThesisCNPQ::CIENCIAS DA SAUDE::SAUDE COLETIVA