Abstract
Objective: To systematize the scientific evidence on the efficacy of botulinum toxin type A in the treatment of bruxism. Method: A bibliographical search was made by researching the PubMed Central Journals and Allergan Products Literature (APL) - botulinum toxin within the last 10 years, with the following descriptors: “bruxism,” “botulinum toxin,” and “treatment”. The methodological quality of the studies was evaluated by the Jadad Scale. Results: Two studies of double blind randomized clinical trials were selected. The two clinical studies showed that the application of botulinum toxin could diminish levels of pain, lower the frequency of occurrences of bruxism, and satisfy the patients in terms of efficacy of the botulinum toxin in this pathology, in addition to having no important adverse effects. Thus, the treatment with botulinum toxin type A could present itself as one possible treatment for patients with bruxism. Conclusion: More studies are needed that follow the quality criteria to reach a definitive conclusion about efficacy and safety.
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