The use of botulinum toxin for the treatment of temporomandibular disorders: Preliminary findings
The use of botulinum toxin for the treatment of temporomandibular disorders: Preliminary findings
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DOI:
10.1016/s0278-2391(99)90007-1
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发表时间:
1999-08-01
影响因子:
1.9
通讯作者:
Symington, JM
中科院分区:
文献类型:
--
作者:
Freund, B;Schwartz, M;Symington, JM
Purpose: The aim of this study was to evaluate the response of patients with temporomandibular disorders to Botulinum toxin A (BTX-A) therapy.Methods: The 15 subjects enrolled in this uncontrolled study were diagnostically categorized and treated with 150 units of BTX-A. Both masseter muscles received 50 units each under eletromyographic (EMG) guidance. Similarly, both temporalis muscles were injected with 25 units each. Subjects were assessed at 2-week intervals for 8 weeks. Outcome measures included subjective pain by visual analog scale (VAS), measurement of bite force, interincisal opening, tenderness to palpation, and a functional index based on multiple VAS.Results: All mean outcome measures, with the exception of bite force, showed a significant (P = .05) difference between the preinjection assessment and the four follow-up assessments. No side effects were reported.Conclusions: BTX-A injections produced a statistically significant improvement in four of five measured outcomes, specifically pain, function, mouth opening, and tenderness. No statistically significant changes were found in mean maximum voluntary contraction or in paired correlation of factors such as age, sex, diagnosis, depression index, or time of onset.