| Project/Area Number |
23593017
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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 | The University of Tokyo |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
OHKUBO Kazumi 東京大学, 医学部, 講師 (10396715)
SUGIYAMA Madoka 東京大学, 医学部, 助教 (90451814)
UCHINO Natsuko 東京大学, 医学部附属病院, 特任臨床医 (30569637)
OKAYASU Mari 東京大学, 医学部附属病院, 特任臨床医 (10610941)
NAGAHAMA Kohei 東京大学, 医学部, 助教 (60401361)
TAKAHASHI Naoko 東京大学, 医学部附属病院, 特任臨床医 (10569635)
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 頭蓋顔面先天異常 / ＣＴセファロ / 矯正歯科診断 / craniofacial anomaly / CT-cephalogram / orthodontic diagnosis / 先天異常 / 平均側面頭部X線規格写真トレース像 / 側面頭部X線規格写真 / 歯科矯正学 / CT / 頭部X線規格写真 / ３次元解析 |
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| Outline of Final Research Achievements |
The morphological analyses for patients with congenital craniofacial anomalies have been performed using conventional cephalograms. However, the head posture setting at taking and the determination of the reference points and lines for analyses are difficult due to the facial anomalies and/or mental problems. Examination on the right and left side separately in cases with facial asymmetry is also difficult.
In this study, the method to make a two-dimensional cephalogram images from three-dimensional CT data was developed for patients with craniofacial anomalies, and the common coordinate system to three-dimensional CT and conventional cephalograms was determined. Using this method, cephalograms in the right and in the left side were depicted separately in asymmetrical cases and the jaw size in each side was measured. The average facial morphology was depicted in major craniofacial anomalies.
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