Botulinum toxin presentation synopsis:
• Overview of the mechanism of action of botulinum toxin
• Review of the present literature on the effectiveness and safety of botulinum toxin for management of refractory masticatory myalgia
• Selecting appropriate patients for management of refractory masticatory myalgia, and predictors of response
• Technique for injecting botulinum toxin into masticatory muscles for management of pain.

A review of current literature on the mechanism of action of botulinum toxin and its efficacy and safety for management of refractory masticatory myalgia. In addition, overview of technique for injecting masticatory muscles, and selecting appropriate patients of refractory masticatory myalgia for botulinum toxin injection therapy.
Botulinum toxin is a neurotoxin that has recently gained popularity in management of chronic pain disorders, including refractory masticatory muscle pain disorders. This lecture will present the current literature on the mechanism of action of botulinum toxin, and its efficacy and safety for management of refractory masticatory myalgia. In addition, it will review the technique for injecting masticatory muscles, and selecting appropriate patients of refractory masticatory myalgia for botulinum toxin injection therapy.