Carreiro, Adriana da Fonte PortoRibeiro, Anne Kaline Claudino2021-02-092021-02-092020-09-29RIBEIRO, Anne Kaline Claudino. Incidência e fatores de risco a não adaptação de novas próteses mandibulares: ensaio clínico. 2020. 65f. Dissertação (Mestrado em Ciências Odontológicas) - Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal, 2020.https://repositorio.ufrn.br/handle/123456789/31446This non-randomized clinical trial aimed to investigate the incidence and the risk factors to the non-adaptation of the conventional mandibular complete denture (CMCD). A total of 108 bimaxillary edentulous were rehabilitated with full dentures on a 3 month and 6 month follow-up. During these periods, patients were allocated into PTA (Patients adapted to CMCD) and PTN (Patients non-adapted to CMCD). The criteria that confirmed the patients’ adaptation were: chewing, phonetics, and swallowing comfortably with the dentures. The variables analyzed as possible risk factors were recorded in a clinical record and were related to sociodemographic aspects and patientcentered factors. The estimate of the average time for adaptation to CMCD was obtained from the Kaplan-Meier curve. Initially, the risk factors were analyzed statistically by the Chi-square test or Fisher's Exact test. Then, a multivariate analysis was performed and the relative risk was adjusted by Poisson regression. The results revealed an incidence of 38.0% (n=41) of individuals non-adapted to new mandibular complete dentures after 3 months. Non-adaptation to the mandibular complete denture was significantly associated with the absence of past mandibular denture experience (p=0.042), the presence of ulcerations after 15 days of rehabilitation (p<0.001), and the height of the reduced posterior mandibular ridge (p=0.035). After 6 months, this incidence decreased to 14.1% (n=14), with the occurrence of ulcerative lesions after 15 days (p<0.001) and 30 days (p<0.001) of the delivery of new dentures and the nonregular use of new CMCD (p<0.001) being the risk factors associated with the nonadaptation of CMCD. Survival analysis showed that 78.53 ± 36.11 days are enough for most patients to adapt to the dentures, with the lower average time to adapt to CMCD significantly associated with previous experience with mandibular CDs (p=0.032), use of old dentures made by a dentist (p=0.034), no record of ulcers after the first days after rehabilitation (p=0.023), posterior mandibular ridge non-reabsorbed (p=0.005) and regular use of new mandibular dentures (p=0.002). It concluded that the incidence of patients non-adapted to CMCD was higher in 3 months, with a reduction after 6 months follow up. Sociodemographic variables not influenced the adaptation to the mandibular dentures in the periods of 3 and 6 months. After 3 months, the absence of previous experience with CMCD, registration of traumatic ulcers in the mandibular arch, and the presence of lower mandibular ridges interfered negatively in the adaptation to new lower dentures, constituting risk factors for non-use CMCD. However, after 6 months of wearing the prostheses, only the occurrence of ulcerative lesions and non-regular wear of dentures were risk factors for non-adaptation to mandibular prostheses. On average, most individuals adapted to the new CMCD in 2.6 months. This adaptation in less time was associated with previous experience with an inferior dentures, the use of old prostheses made by a dentist, the absence of a record of traumatic ulcers after rehabilitation treatment, the presence of non-resorbed ridge and the regular use of the new CMCD.Acesso AbertoPrótese total inferiorAdaptaçãoFatores de riscoAnálise de sobrevidamasterThesis