| Project/Area Number |
23792155
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Pathobiological dentistry/Dental radiology
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| Research Institution | The Nippon Dental University |
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Principal Investigator |
ASAUMI Rieko 日本歯科大学, 生命歯学部, 講師 (30548243)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 歯科用コーンビーム CT / 顎変形症手術 / 三次元画像 / 術前診断 / 歯科用コーンビームCT / 顎骨 / 画像解析 |
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| Research Abstract |
The Le FortI osteotomy is general surgical procedure for maxillary deformity. However, there is a possibility of severe bleeding caused by damage to the palatine artery during separation of pterygomaxillary suture (PMS). The preoperative diagnosis is important to avoid such complication. Therefore, the guideline of the imaging diagnosis for individual anatomical morphology of the PMS and surrounding structures was suggested. It was confirmed that the patterns of the branching of the lesser palatine canal (LPC) from the greater palatine canal (GPC) had a lot of variety from cone beam CT images. It was observed that the nerve, artery and vein in the GPC, LPC and PMS had a variety of distributions from macroscopic observation. From the FEM analysis, the stress distribution during the separation of the PMS is affected by the morphology and position of the PMS, GPC and LPC. In conclusion, it seems to be necessary to consider the GPC, LPC and PMSwhen diagnosing before Le FortIosteotomy.
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