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Incidence and risk factors for non-adaptation of new mandibular complete dentures: a clinical trial
Anne Kaline Claudino Ribeiro1, Aretha Heitor Veríssimo1, Annie Karoline Bezerra de Medeiros1
1Department of Dentistry, Federal University of Rio Grande do Norte (UFRN), Av. Sen. Salgado Filho, 1787, Lagoa Nova, Natal, RN, 59056-000, Brazil.
Objective:
To investigate the incidence and risk factors for non-adaptation of the conventional mandibular complete denture (CMCD).
Materials And Methods:
A total of 108 edentulous patients were rehabilitated with complete dentures (CDs) and followed up at 3- and 6-month intervals. Adaptation was confirmed based on chewing, phonetics, and comfortable swallowing with the CDs. The risk factors among sociodemographic and patient-centered factors were analyzed. Statistical analyses included the chi-square test and then a multivariate analysis.
Results:
After 3 months, 38.0% of patients showed non-adaptation to CMCDs. Non-adaptation was significantly associated with the absence of previous mandibular denture experience (p = 0.042), ulcerations after 15 days of rehabilitation (p < 0.001), and a reduced posterior mandibular ridge (p = 0.035). After 6 months, this incidence decreased to 14.1%. The factors associated with non-adaptation were ulcerative lesions after 15 (p < 0.001) and 30 (p < 0.001) days of the delivery of CDs and the non-regular use of mandibular CDs (p < 0.001).
Conclusion:
The incidence of non-adaptation was higher after 3 months, with reduction after 6 months. Sociodemographic variables did not influence the adaptation. After 3 months, the absence of previous experience, traumatic ulcers, and reduced mandibular ridges hindered the adaptation of patients to mandibular CDs. After 6 months, only the occurrence of ulcerative lesions and non-regular wear of dentures were risk factors for non-adaptation.
Clinical Relevance:
A considerable number of patients have difficulties in adapting to the mandibular dentures. Identifying the factors of non-adaptation of the dentures will contribute to increasing the predictability of this critical adaptation period.
