Changes in the temporomandibular joint after unilateral mandibular distraction osteogenesis
- VernacularTitle:牵张成骨延长一侧下颌骨对颞下颌关节的影响
- Author:
Jihua LI
;
Shujuan ZOU
;
Jing HU
- Publication Type:Journal Article
- Keywords:
Distraction osteogenesis;
Temporomandibular joint;
Mandibular lengthening
- From:
Journal of Practical Stomatology
2000;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
objective: To observe the changes in the bilateral condyles after unilateral mandibular lengthening with distraction osteogenesis. Methods: Unilateral mandibular osteodistraction (DO) was performed in 8 goats. 4 animals were sacrificed at 8 and 16 weeks after completion of distraction respectively. The TMJ specimens were harvested and processed for histologic, histomorphometric and scanning electron microscopic (SEM) examinations. Results: Reversible adaptive remodeling in the condyles was observed following mandibular distraction at a rate of 1 mm/d. No degenerative changes in the TMJs were found after mandibular lengthening. Conclusion: Gradual distraction at a rate of 1 mm/day may not lead to degenerative change in condylar cartilage.
