The Use of Low-Dose Botulinum Toxin Injection Into the Masseter Muscle to Treat Sleep Bruxism

Summary

Botulinum toxin (BOTOX®) injections into the masseter muscle are an effective treatment for nocturnal bruxism, with several trials using various dosages of botulinum toxin for this purpose. The aim was to evaluate the effectiveness of injecting 10MU of botulinum toxin A (BTXA) into the masseter muscle to reduce nocturnal bruxism, the sample will randomly divided into 2 groups. In the injection group, Patients will inject with 10 MU of botulinum toxin type A (BOTOX® - Allergan Inc. - Dublin - Ireland) per side at two sites into the masseter muscle bilaterally. In this Placebo group, patients will prick twice at the inferior prominent part of the masseter muscle observed using the stinger pen used in the blood glucose meter. The evaluation will make by Electromyography (EMG) analysis, Visual Analogue Scale (VAS) values.

Timeline

Start

2021-03-15

Primary completion

2021-09-15

Completion

2022-02-10

Publications

• Background Manfredini D, Ahlberg J, Winocur E, Lobbezoo F. Management of sleep bruxism in adults: a qualitative systematic literature review. J Oral Rehabil. 2015 Nov;42(11):862-74. doi: 10.1111/joor.12322. Epub 2015 Jun 11.
• Background Carra MC, Huynh N, Lavigne G. Sleep bruxism: a comprehensive overview for the dental clinician interested in sleep medicine. Dent Clin North Am. 2012 Apr;56(2):387-413. doi: 10.1016/j.cden.2012.01.003.
• Background Lavigne GJ, Khoury S, Abe S, Yamaguchi T, Raphael K. Bruxism physiology and pathology: an overview for clinicians. J Oral Rehabil. 2008 Jul;35(7):476-94. doi: 10.1111/j.1365-2842.2008.01881.x.
• Background Lobbezoo F, Ahlberg J, Glaros AG, Kato T, Koyano K, Lavigne GJ, de Leeuw R, Manfredini D, Svensson P, Winocur E. Bruxism defined and graded: an international consensus. J Oral Rehabil. 2013 Jan;40(1):2-4. doi: 10.1111/joor.12011. Epub 2012 Nov 4.
• Background Sellin LC, Thesleff S. Pre- and post-synaptic actions of botulinum toxin at the rat neuromuscular junction. J Physiol. 1981 Aug;317:487-95. doi: 10.1113/jphysiol.1981.sp013838.
• Background Tan EK, Jankovic J. Treating severe bruxism with botulinum toxin. J Am Dent Assoc. 2000 Feb;131(2):211-6. doi: 10.14219/jada.archive.2000.0149.

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Indications