[A dynamic study of influences of TMJOA on TMJ disc].
OBJECTIVE
To learn the changes of TMJ disc positions under the influences of TMJ Osteoarthrosis(TMJOA).


METHODS
The TMJOA experimental animal model was established by 12 goats. The TMJ disc positions were observed and recorded at different intervals, (1 month, 2 months, 3 months, 4 months and 6 months) then the pathological changes of TMJ specimens were also studied.


RESULTS
Significant anteromedial shift of TMJ disc position was observed in some certain TMJOA phases and became more obviously along with the disease progress.


CONCLUSIONS
The shift of TMJ disc may be the secondary change of TMJOA.
Chen
G
G
College of Stomatology, West China University of Medical Sciences.
Hu
B
B
Wang
D
D
Tong
X
X
Li
T
T
D000818:Animals; D006041:Goats; D004204:Joint Dislocations / Q000209:etiology* / Q000473:pathology; D010003:Osteoarthritis / Q000150:complications* / Q000473:pathology; D019224:Temporomandibular Joint Disc / Q000473:pathology*; D013705:Temporomandibular Joint Disorders / Q000150:complications* / Q000473:pathology