Treatment of severe temporomandibular joint clicking with botulinum toxin in the lateral pterygoid muscle in two cases of anterior disc displacement.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod
; 100(6): 693-700, 2005 Dec.
Article
in En
| MEDLINE
| ID: mdl-16301150
ABSTRACT
A novel treatment procedure is introduced for severe clicking of the temporomandibular joint (TMJ) associated with anterior disc displacement (ADD), using injections with botulinum toxin (BTX-A) in the lateral pterygoid muscle (LP). It has been suggested that ADD may be caused, precipitated, or maintained by LP activity, but the role of the LP in the dynamics of the TMJ clicking is uncertain. The case report includes 2 women, followed with clinical examinations, TMJ imaging, and electromyography (EMG), in whom local anesthetics in the LP could abolish the clicking for several days. BTX-A block of the LP (30 U Botox, given twice under EMG guidance with 6-month interval) temporarily reduced the action of the muscle, but the clicking was permanently eliminated and did not return during the observation period of 1 year, and a small but distinctive positional improvement in the disc-condyle relationship was obtained. However, the precise mechanisms behind the favourable treatment outcome are unclear.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Temporomandibular Joint Disorders
/
Botulinum Toxins, Type A
/
Neuromuscular Agents
Type of study:
Guideline
Limits:
Adult
/
Female
/
Humans
/
Middle aged
Language:
En
Journal:
Oral Surg Oral Med Oral Pathol Oral Radiol Endod
Journal subject:
ODONTOLOGIA
Year:
2005
Document type:
Article
Affiliation country:
Denmark