The Use of Botulinum Toxin for the Treatment of Myofascial Pain in the Masticatory Muscles

Although the use of botulinum toxin has been recommended for the management of myofascial pain and dysfunction, the precise mechanism of its action remains undetermined and studies on its effectiveness are equivocal. Moreover, even if such treatment may temporarily relieve the symptoms, it does not address the cause of the problem. Also, its use is not free of potential complications. On this basis, botulinum toxin does not seem to be a logical treatment of myofascial pain and dysfunction.