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[Photoelastic analysis of mandibular edentulous alveolar bone with denture adhesives]
Qun Zhong1, Yan Peng, Xue-ying Wu
1Shanghai Stomatological Disease Center. Shanghai 200031;China.E-mail:zhongqun681115@qq.com.
Purpose:
To compare the stress distribution of supporting tissues in Atwood level 3 alveolar bones under the mandibular complete dentures with and without denture adhesives.
Methods:
Photoelastic models of epoxy were fabricated according to the standard Atwood level 3 edentulous model. 1.5 kg force was vertically applied on the bite force loading device. After stress frozen, photoelastic model slices in posterior teeth area were observed and analyzed.
Results:
When using denture adhesives, stresses distributed more adequately in the buccal and lingual side and the force of alveolar crest increased remarkably.
Conclusions:
To those with Atwood level 3 alveolar ridge and complete denture, denture adhesives can not only increase stability but also prevent local pressure under uneven stress distribution.
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