| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Research Abstract |
The aim of this study was to examine the function of the articular disk in regeneration of condyle after unilateral condylectomy with use of a functional appliance in growing rats. The unilateral condylectomy + discectomy produced reduced growth of the mandible. However, the reduced growth of the mandible was not eliminated even by the use of the functional appliance. Regeneration of the condyle was demonstrated in all the rats in the condylectomy and condylectomy + appliance groups. The shape of condyle in all the rats in the condylectomy + appliance group was exactly equivalent to the normal condyles, whereas the shape was deformed in the condylectomy group. Four layers of the condylar cartilage were also clearly detected in the condylectomy + appliance group. However, the regeneration of condyle was not observed in the two discectomy groups even by using the functional appliance by means of histomorphometric analyses.
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