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Short-term effect of frozen-stored disk allograft repair on the osteoarthritic sheep temporomandibular joint

Research Project

Project/Area Number 08672347
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Surgical dentistry
Research InstitutionAICHI-GAKUIN UNIVERSITY

Principal Investigator

OGI Nobumi  Aichi-Gakuin University School of Dentistry, Assistant Professor, 歯学部, 講師 (90211127)

Co-Investigator(Kenkyū-buntansha) KAWAI Tsuyoshi  Aichi-Gakuin University, School of Dentistry, Professor, 歯学部, 教授 (50064788)
KURITA Kenichi  Aichi-Gakuin University, School of Dentistry, Professor, 歯学部, 教授 (40133483)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1997: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1996: ¥700,000 (Direct Cost: ¥700,000)
Keywordstemporomandibular joint / osteoarthritis / diskectomy / disk graft / sheep
Research Abstract

Aim The aim of this study is to evaluate short-term effect of frozen-stored disk allograft following diskectmy on the osteoarthritic sheep temporomandibular joints (TMJ).
Materials and Methods Osteoarthritis was induced in bilateral sheep TMJ.Three months later, unilateral diskectomy and frozen-stored disk allograft repair were performed. The donor disk had been obtained from healthy aheep at sacrifice. The disk was deep-frozen and stored at-70 degrees Celsius for a month and thawed at grafting. The contralateral joints were not disturbed, being served as a control at 3 months. At 6 months after the initial procedure, the sheep were sacrificed.
Results All grafted disks were perforated and displaced. In the grafted joints, condylar srticular surface was partly denuded and some part of the surface showed fibrous repair. The control joints showed osteoarthritic changes.
Conclusion Frozen-stored allogenic disk has a little indication for an interpositional material in an osteoarthritic TMJ.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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