Effect of fixed dental prosthesis on the brain functions of partially edentulous patients – pilot study with power spectrum density analysis

Abstract

PurposeThis study was done to analyse the influence of fixed dental prosthesis (FDP) onbrain function by analysing power spectral density of partially edentulous patients.Materials and MethodsThe study included unilateral missing mandibular molar replacement patients. Thepatients were restored with three-unit metal ceramic FDP restorations. The cognitivefunction was analysed with a mental state questionnaire. Power spectral density(PSD) analysis of EEG alpha waves was made pre- treatment, post treatment and 3months after FDP treatment to analyse the brain function. The data in various phaseswere obtained before and after chewing. The results were statistically analysed.ResultsThe mean pre and post treatment PSD was 0.0175 (SD ±0.0132) and 0.0178 (SD±0.0135). The mean post treatment PSD after three months was 0.024 (SD± 0.019).The results were analysed with repeated ANOVA and were statistically significant.(p