2016 Fiscal Year Final Research Report
Objective Analysis on Factors Affecting Difficulty of Denture Treatment
| Project/Area Number |
26462936
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Prosthodontics/ Dental materials science and
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| Research Institution | Showa University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 三次元有限要素解析法 / 義歯支持粘膜 / 弾性率 / 粘膜厚さ / 疼痛閾値 / 圧力 / 圧縮率 / 沈下量 |
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| Outline of Final Research Achievements |
Purpose: In this study, we examined a three-dimensional finite element analysis (FEA) method of measuring optimum elasticity using thickness and load data collected from elderly edentulous patients when they felt pressure-related pain.
Results: Compared with measured elasticity, optimum elasticity was significantly less (P < .05), and correlations were found in all three palatal parts where experiments were carried out (P < .01). A correlation between thickness and measured elasticity was found at the midpoint part (P < .05), but not at the median or lateral part. A correlation between thickness and optimum elasticity was not found in all three areas of the palate where experiments were carried out. Our study has proven that it is difficult to estimate elasticity using the thickness of denture-supporting tissue, demonstrated that it is necessary to optimize elasticity at all palatal parts in the FEA, and established a method to measure elasticity.
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| Free Research Field |
歯科補綴学
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