The Effect of Different Occlusal Schemes on Masticatory Performance for Conventional and Digital Complete Dentures

El Agamy, Ahmed Hassan; Abd El-Halim, Ehab M.; Ali, Mostafa A.

doi:10.21608/aadj.2023.326293

The Effect of Different Occlusal Schemes on Masticatory Performance for Conventional and Digital Complete Dentures

Document Type : Original Article

Authors

¹ Removable prosthodontics, Faculty of Dental Medicine, Al-Azhar University, Assiut Branch

² Department of Removable Prosthodontics, Faculty of Dental Medicine, Al- Azhar University, Assiut Branch, Egypt

10.21608/aadj.2023.326293

Abstract

Aim: to evaluate effect of different schemes of occlusion; bilateral balanced
occlusion (BBO) and lingualized occlusion (LO) of conventional and digital
(3D printing) complete dentures on masticatory performance (efficiency).
Subjects and Methods: Ten completely edentulous patients were selected randomly.
Then received a complete conventional and digital (3D printing) denture with BBO.
After three months, all patients were recalled for recording mean values of masticatory
efficiency that was evaluated by assessing the chewing time and number of strokes
until first swallow and until clearance of the mouth from food using different types
of food (carrot, apple and banana). The occlusal schemes were interchanged to LO
schemes on the patients’ denture bases, reinserted in the mouth with resting period
three weeks between occlusal schemes. Then, masticatory efficiency measurements
were recorded as mentioned before. One way ANOVA was used for comparison of
the different dentures followed by Tukey HSD post hoc test used to compare between
every two dentures. The significance level was set at P-value ≤ 0.05. Statistical
analysis was performed using IBM® SPSS® Statistics Version 20 for Windows.
Results: The results showed no significant difference in masticatory performance
between different occlusal schemes or between conventional and 3D printing dentures
and the patients were satisfied by the masticatory function when eating different types
of food. Conclusion: BBO as LO penetrated the food polus well and provide more
stability and favorable stress distribution in parafunctional and excursive movements.
However, 3D printing dentures with BBO were somewhat better than other dentures

Keywords