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- Title
The effect of denture stability on bite force and muscular effort.
- Authors
CALOSS, R.; AL‐ARAB, M.; FINN, R. A.; THROCKMORTON, G. S.
- Abstract
This study tested the hypothesis that denture instability limits the amount of voluntary muscular effort generated by denture wearers. Seventeen edentulous subjects (seven men, 10 women; mean age 60·3 ± 13·0 years) with newly acquired implant-retained mandibular overdentures and a conventional maxillary denture participated. Maximum bite forces and corresponding electromyographic (EMG) activity from the temporalis and masseter muscles (bilaterally) were recorded under two experimental conditions: (i) Unilateral premolar and molar bites without additional support, and (ii) premolar and molar bites with bite block support on the opposite side. In addition, EMG values alone were recorded during maximum clenching without any transducer between the upper and lower dentures. The level of muscular effort was significantly higher with greater denture support. These results indicate that denture instability probably prevents denture wearers from using the full potential of their jaw muscles, especially during unilateral biting and chewing, even with two implants supporting the mandibular dentures.
- Subjects
ANALYSIS of variance; COMPLETE dentures; ELECTROMYOGRAPHY; MASTICATION; MASTICATORY muscles; DENTAL occlusion; RESEARCH funding; STATISTICS; T-test (Statistics); DATA analysis; REPEATED measures design
- Publication
Journal of Oral Rehabilitation, 2011, Vol 38, Issue 6, p434
- ISSN
0305-182X
- Publication type
Article
- DOI
10.1111/j.1365-2842.2010.02169.x