Photoelastic analysis of stress distribution of complete dentures with lingualized occlusion (routine complete denture load)
Online published: 2012-01-29
Supported by
Shanghai Science and Technology Committee Foundation, 08DZ2271100
Objective To investigate the stress distribution of supporting tissues in complete dentures with lingualized occlusion and anatomic occlusion under centric and lateral stress load. Methods Three-dimensional photoelastic experiment mothod was adopted, and photoelastic models of epoxy were fabricated according to the Cawood V edentulous model. Complete dentures with lingualized occlusion and anatomic occlusion were prepared respectively. After frozen under centric and lateral stress load, the stress distribution of supporting tissues was analysed and compared. Results Under centric and lateral stress load, lingualized occlusion conveyed more stress to lingual side than anatomic occlusion in routine complete dentures, and the occlusion stress in lingualized occlusion was better distributed. Conclusion For patients with severe absorbed alveolar ridge undergoing complete denture restoration, lingualized occlusion should be considered in first place to increase the stability of dentures.
JIN Wen-zhong, JIAO Ting, PENG Yan, et al . Photoelastic analysis of stress distribution of complete dentures with lingualized occlusion (routine complete denture load)[J]. Journal of Shanghai Jiao Tong University (Medical Science), 2012 , 32(1) : 73 . DOI: 10.3969/j.issn.1674-8115.2012.01.014
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