Which Treatment Is Effective for Bruxism: Occlusal Splints or Botulinum Toxin?

Purpose: The aim of the present study was to compare the efficacy of an occlusal splint and botulinum toxin for the treatment of bruxism. Patients and Methods: Seventy-three patients with myofascial pain due to bruxism were included in the present study. The patients were allocated into 3 groups. Group A was treated with an occlusal splint, group B was treated with botulinum toxin injections, and group C was treated with an occlusal splint and botulinum toxin injections. The Temporomandibular Disorder Pain Screener, Graded Chronic Pain Scale, Oral Behavior Checklist, Jaw Function Limitation Scale, and visual analog scale (VAS) by palpation of the chewing muscles were administered to all patients before treatment and 6 months after treatment. Results: The questionnaire and VAS scores decreased in all 3 groups (P<.0001). The VAS and questionnaire scores had decreased significantly in groups B and C compared with those in group A (mean VAS score: group A, 5 [range, 3 to 7]; group B, 1.9 +/- 0.97; group C, 1.79 [range, 0 to 3]). Conclusions: Occlusal splints might not be necessary for patients treated with botulinum toxin injections. (C) 2019 American Association of Oral and Maxillofacial Surgeons