| Project/Area Number |
06454568
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Surgical dentistry
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| Research Institution | Yamanashi Medical University |
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Principal Investigator |
OHNISHI Masatoshi Yamanashi Medical University Medical Science・Department of Oral & Maxillofacial Surgery, Professor, 医学部, 教授 (50014139)
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| Co-Investigator(Kenkyū-buntansha) |
TSUJI Masahide Yamanashi Medical University Medical Science・Department of Oral & Maxillofacial, 医学部, 講師 (70262665)
OHTSUKI Kayoko Yamanashi Medical University Medical Science・Department of Oral & Maxillofacial, 医学部, 助教授 (20185325)
金城 尚典 山梨医科大学, 医学部, 助手 (00262676)
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| Project Period (FY) |
1994 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥4,400,000 (Direct Cost: ¥4,400,000)
Fiscal Year 1996: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1995: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1994: ¥1,700,000 (Direct Cost: ¥1,700,000)
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| Keywords | TMJ reconstruction / Joint replacement / Artificial condyl / Artificial Fossa / Titanium Condyl / Romodeling of Joint / Fixation Screw / Degenarative TMJ Arthrosis / 顎関節再建 / 下顎頭キャップ / 下顎頭回転運動 / 下顎頭滑走運動 / 人工顎関節置換術 / チタン / 鋳造 / チタン製下顎頭 / 顎関節機能 / 下顎運動 |
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| Research Abstract |
Comprehensive study of temporomandibular joint reconstruction
1) Animal experiment with 5 joints of japanese monkeys-Reconstruction of temporomandibular joint (TMJ) with an artificial TMJ head and articular fossa and time-lapse observation of postoperative course ; Tissue samples showed the clinically useful finding that the interspace between titanium artificial joint and bone tissue was filled with new bone in the mandibular condylar cap.
2) Artificial TMJ replacement ; Our research team has developed artificial TMJ replacement.
The practical application of the system underwent in combination with articular disc-capsule sutural fixation under TMJ arthroscopy. The study of artificial TMJ replacement methods to be useful.
3) Total evaluation of the artificial TMJ system ;
Our reconstruction method was indicated in patients suffering from severe TMJ disturbance comlpicated by degenerative diseases including rheumatoid changesis, those who underwent this surgical procedure showed signifcantly good prognose, except two of fifteen cases applied this system. However, the optimum shape and size of the artificial TMJ and an adequate fixation method remain to be evaluated by further studies.
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