| Literature DB >> 16301150 |
Merete Bakke1, Eigild Møller, Lene M Werdelin, Torben Dalager, Noriyuki Kitai, Sven Kreiborg.
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.Entities:
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Year: 2005 PMID： 16301150 DOI： 10.1016/j.tripleo.2004.11.019
Source DB: PubMed Journal: Oral Surg Oral Med Oral Pathol Oral Radiol Endod ISSN： 1079-2104