Index to Chiropractic Literature
Index to Chiropractic Literature
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ID 21377
  Title Effectiveness of botulinum toxin type A treatment of neck pain related to nocturnal bruxism: A case report [case report]
Journal J Chiropr Med. 2010 Sep;9(3):132-137
Peer Review Yes
Publication Type Case Report
Abstract/Notes Objective: This case report describes a patient with nocturnal bruxism and related neck pain treated with botulinum toxin type A (BTX-A).

Clinical Features: The patient was a 27-year-old man with nocturnal bruxism and difficulty in active mouth opening and chewing and neck pain at rest. His numeric pain score was 7 of 10. Surface electromyography of the temporalis and masseter muscles showed typical signs of hyperactivity, characterized by compound muscle action potential amplitude alterations.

Intervention and Outcome: After clinical evaluation, he was treated with BTX-A to reduce masseter and temporalis muscle hyperactivity. After 3 days of treatment with BTX-A, with each masseter muscle injected with a dose of about 40 mouse units with a dilution of 1 mL and with temporal muscle bilaterally injected with 25 mouse units with the same dilution, a decrease in bruxism symptoms was reported. Neck pain also decreased after the first treatment (visual analog scale of 2/10) and then resolved completely. After 4 weeks, electromyography showed the reduction of muscle hyperactivity with a decrease in the amplitude of the motor action potential. The same reduction in signs and symptoms was still present at assessment 3 months posttreatment.

Conclusion: These findings suggest that BTX-A may be a therapeutic option for the treatment of bruxism and related disorders.

This abstract is reproduced with the permission of the publisher; full text by subscription.

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