Impact of Compensating Curves on Mastication of Complete Denture Wearers: A Randomised Triple-Blind Clinical Trial

• Published in: The European journal of prosthodontics and restorative dentistry Vol. 32; no. 1; p. 142
• Main Authors: Janz, J M, Reis, Y N, de Oliveira, V J, Carneiro, D E, Cartagena, A F, Sánchez-Ayala, A
• Format: Journal Article
• Language: English
• Published: England 29.02.2024
• Subjects: Dental Occlusion; Denture, Complete; Humans; Mastication; Mouth, Edentulous; Mastication; Complete Denture; Dental Occlusion; Occlusal Curvature
• ISSN: 0965-7452
• DOI: 10.1922/EJPRD_2617Janz11

The application of occlusal concepts in prosthodontics is still under debate.This study assessed the impact of compensating curves on the comminution of complete denture wearers. Seven edentulous subjects, aged 64.6 ± 2.0 years, were rehabilitated with new muco-supported complete dentures and tested in two occlusal plane settings: with and without compensating curves. A randomised triple-blind clinical trial was conducted, considering one-week and one-month as adaptation periods for dentures. After each trial, the subjects were crossed over to their respective groups. One-week was also chosen as the washout period, and after that, the subjects were re-examined. The masticatory performance and swallowing threshold were determined while chewing Optocal test food. The multiple sieve method was used for fractionation and granulometry. During the masticatory performance and swallowing threshold estimates, no differences were found between the median particle sizes obtained with the both occlusal plane conditions (P ⟩ 0.05). However, the swallowing threshold improved after one month, resulting in smaller particle sizes. Moreover, the chewing rates for the both test foods were also increased (P ⟨ 0.05). These findings suggest that the compensating curves did not have an impact on the masticatory function of subjects wearing complete dentures.