Effect of adaptation time on the occlusal force at denture dislodgement with or without denture adhesive.

STATEMENT OF PROBLEM

The effect of denture adhesives on the occlusal forces at the dislodgement (OFD) of new complete dentures during the adaptation period has not been previously studied.

PURPOSE

The purpose of this study was to investigate the OFD of dentures after their insertion and 3 months later, with or without denture adhesives.

MATERIAL AND METHODS

Thirteen volunteers with edentulism were enrolled in the study. Each participant had new complete maxillary and mandibular dentures. The occlusal forces (N) at denture dislodgement were assessed with or without 2 adhesives by using an electronic gnathodynamometer in the incisal and premolar regions on the existing denture, the new denture immediately after fitting, 45 days later, and 90 days later. The statistical analysis included the Wilcoxon and Kruskal-Wallis tests, repeated measures ANOVA, and the Pearson coefficient at α=.05.

RESULTS

Repeated measures ANOVA for new dentures showed that the OFD in the incisal or premolar region were significantly different between adaptation periods (P<.05) but not between adhesives. OFDs of dentures with and without adhesives correlated highly at all adaptation periods (0.912 to 0.995).

CONCLUSIONS

The adaptation period does affect the OFD of new dentures, but the 2 adhesives were found to have the same effect on the OFD.