TMJ has hinge like junction.
Luxation occurs when :-
- Overextension of TMJ
- Isolated injury or associated with maxillofacial injuries
Luxation is unilateral but bilateral Luxation also occurs.
Clinical features :-
- Inability to close mouth
- Head trauma
- No deviation of mandible
- Lower jaw deviated away from luxated side
- Pain may occur in some cases
- Inflammation may be seen
Treatment :-
- NSAIDS should be the medical treatment
- Closed reduction
- Fulcrum should be placed
- Open reduction or mandibular condylectomy are indicated
Reference :-
Image :- Google
Writing :- notes made from mastering bds and Sanjay Kumar Purkait books
Dentowesome 