The Effect of Occlusion and Two Denture Base Material on Muscle Activity and Masticatory Efficiency of Complete Dentures

Authors

Marwa Ezz El-Din, M.D.Sc, in Removable Prosthodontics, Private Dentist
Mohammed Essam El-Din Sanad, Professor of Removable Prosthodontics Department, Faculty of Dental Medicine for Girls, Al-Azhar University
Hala M. Gamal El-Din, Professor of Removable Prosthodontics Department, Faculty of Dental Medicine for Girls, Al-Azhar University.

Document Type

Original Study

Abstract

The aim of this study was to evaluate the effect of occlusion and two different denture base material on muscle activity and masticatory efficiency of complete dentures. Material and Methods: Two complete dentures of different material, conventional and flexible denture base material with different occlusal schemes, starting with unbalanced occlusion and converted into bilateral balanced occlusion through three different ways of remounting, laboratory, clinical and intra-oral selective grinding applied on three different posterior teeth assemblies were delivered to patients who were totally edentulous (all were men range age 50-60 years). Muscle activity and masticatory efficiency were evaluated with two different type of food, carrots resembling hard food and banana resembling soft food. The occlusal schemes were switched on the patients’ denture bases. Two-way repeated-measures ANOVA and t test were used to examine the alterations between the occlusal schemes, denture base materials and chewing strokes and their relations. Results: No significant difference was found in electromyographic activity or masticatory efficiency between the occlusal schemes and denture base materials with soft food (p<0.05). A significant difference was found in electromyographic activity and masticatory efficiency with bilateral balanced occlusion obtained through clinical remounting with flexible denture base material with hard food. Conclusions: Within the limitation of this study, it was concluded that complete dentures with bilateral balanced occlusion obtained through clinical remounting found significant differences in muscle activity and masticatory efficiency with hard food. Flexible dentures are better than conventional dentures in muscle activity and masticatory efficiency.

Keywords

conventional; Flexible; occlusion; electromyography; adjustments

How to Cite This Article

Ezz El-Din, Marwa; Essam El-Din Sanad, Mohammed; and Gamal El-Din, Hala M. (2019) "The Effect of Occlusion and Two Denture Base Material on Muscle Activity and Masticatory Efficiency of Complete Dentures," Al-Azhar Journal of Dentistry: Vol. 6: Iss. 2, Article 12.
DOI: https://doi.org/10.21608/adjg.2019.42309

Subject Area

Restorative Dentistry Issue (Removable Prosthodontics, Fixed Prosthodontics, Endodontics, Dental Biomaterials, Operative Dentistry)