| Project/Area Number |
24592897
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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 |
Prosthetic dentistry
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| Research Institution | Tohoku University |
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Principal Investigator |
HANAWA Soshi 東北大学, 大学病院, 助教 (90431585)
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| Co-Investigator(Kenkyū-buntansha) |
SASAKI Keiichi 東北大学, 大学院歯学研究科, 教授 (30178644)
KOYAMA Shigeto 東北大学, 大学病院, 准教授 (10225089)
OGAWA Toru 東北大学, 大学院歯学研究科, 准教授 (50372321)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 顔面計測 / 顔面整容 / 三次元デジタイザ / 顎義歯形態 / 義歯形態 / QOL |
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| Outline of Final Research Achievements |
The purpose of this study was to clalify the effect of maxillary obturator prostheses on facial morphology in unilateral maxillary defect patients. The facial data of 8 patients were acquired with a 3-dimensional digitizer, both with and without prostheses. Displacement at 18 measurement points, including 7 bilateral pairs, was compared between the 2 sides with and without the prostheses. Asymmetry indices of these 7 pairs were also calculated. Displacements of the lateral and inferior points at the ala of the nose were significantly greater on the defect side than on the normal side. The distances between the ideal and defect side points at the superior ala, the upper lip, and the angle of the mouth decreased significantly with the prosthesis. The angle of the upper lip line to the midsagittal plane increased significantly with the prosthesis. The prostheses affect the region of the nasal ala, the upper lip, and the angles of the mouth.
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