| Project/Area Number |
23593019
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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 |
Orthodontic/Pediatric dentistry
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| Research Institution | Tokyo Medical and Dental University |
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Principal Investigator |
BABA Yoshiyuki 東京医科歯科大学, 歯学部, 非常勤講師 (70251535)
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| Co-Investigator(Kenkyū-buntansha) |
SUZUKI Shoichi 東京医科歯科大学, 医歯(薬)学総合研究科, 准教授 (90187732)
TSUJI Michiko 東京医科歯科大学, 医歯(薬)学総合研究科, 助教 (90345281)
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| Co-Investigator(Renkei-kenkyūsha) |
YONEYAMA Takayuki 日本大学, 歯学部, 教授 (00220773)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 骨延長術 / 牽引力 / 張力センサ / 上顎骨 / 側方偏位 |
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| Research Abstract |
The objective of this study was to measure the traction force during distraction osteogenesis in patients showing lateral deviation of the maxilla using a RED system. For the study period, a micro tension gauge was customized and minimized to a length of 19 mm.
Tension of traction wires were measured in 6 cleft lip/palate patients treated using maxillary distraction osteogenesis. The mean distance of maxillary advancement was 8.6 mm, while the maximum traction force, which was calculated by averaging the tension of the right and left side, was found to be 18.5 N. A statistically significant positive correlation was observed between the amount of maxillary advancement and traction force.
In a patient with a cleft lip and palate showing lateral maxillary deviation, acceptable occlusion was obtained using the RED system with three traction wires. Application of differential forces was effective for correction of the anteroposterior as well as lateral displacement of the maxilla.
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