Impact of Long-term Soft Relining of Mandibular Complete Dentures on Brain Activity and Cognitive Function of Elderly Patients

BACKGROUND: Stability and retention of mandibular complete denture are a chronic complaint in elderly patients and it may have potential effect on dementia. AIM: The study was conducted to evaluate the impact of the long-term soft liner (LTSL) for mandibular dentures on brain activity and cognitive function of completely edentulous elderly patients. PATIENTS AND METHODS: Thirty elderly completely edentulous denture wearer patients were selected to participate in the study. Patient’s brain activity and cognitive function were investigated before and after the relining of the mandibular complete dentures with an LTSL material. Patient’s brain activities were investigated by electroencephalograms, while patient’s cognitive functions were evaluated by the aid of mini-mental state examinations. RESULTS: Statistical analysis of obtained results revealed a significant difference in patient’s brain activity as well as a cognitive function before and after the relining of the mandibular complete dentures. CONCLUSIONS: Long-term soft-lined mandibular dentures seemed having an impact on brain activity and cognitive function for elderly completely edentulous denture wearers.