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Article Type

Original Article

Section/Category

Restorative Dentistry

Abstract

Objective: This study assessed the chewing efficiency and maximum bite force of maxillary implant-supported bar overdentures, and fixed hybrid prostheses opposed by a mandibular overdenture supported by 2 implants. Materials and methods: Six completely edentulous patients enrolled from a previous study installed with a mandibular overdenture comprising two implants. Four parallel maxillary implants were placed in the canines and second premolars region. Each patient randomly received a bar overdenture (BOD) and a fixed hybrid prosthesis (FHP). Using chewing gum and View Gum software, the chewing efficiency was assessed in terms of variance of hue (VOH). Using an occlusal force meter, the maximum occlusal force was assessed (in Newtons). After three months of use, the following maxillary prostheses were assessed: complete denture (CD), BOD, and FHP. The three groups were compared using one-way ANOVA test, while the groups in between were compared using post hoc LSD test. These statistical tests have a 5% significance threshold. Results: The mean VOH was highest (low mixing ability for CD), then BOD and finally for the FHP. The mean values of maximum bite force varied significantly (P

Keywords

bite force; chewing efficiency; overdenture; fixed hybrid prothesis

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