Use of botulinic toxin in the control of muscular temporomandibular dysfunction – case report

Vol. 2 – Number 8 – 2021 Case report Page 16-21 Use of botulinic toxin in the control of muscular temporomandibular dysfunction – case report Renata Bandeira Lages¹ Clarice Martins do Nascimento Soares² Yves Viana Ramalho Oliveira³ Natan da Costa Damaceno³ ABSTRACT Temporomandibular disorder (TMD) is a set of disorders involving the masticatory muscles, the temporomandibular joint and associated structures, causing painful symptoms. Botulinum Toxin type A (BTX-A) is a neurotoxin that can decrease muscle contraction and can be used to treat cases of myofascial pain. This substance blocks acetylcholine release in presynaptic cholinergic nerve terminals, without altering the neural induction of electrical signals and, thus, promoting paralysis or transient muscle relaxation (favoring the reduction of lactic acid production and consequently raising the pain threshold). This study aimed to present a case report where botulinum toxin type A was used in the treatment of a patient with muscle TMD, since it is a palliative measure for TMD, whose treatment consists of its application in the masseter and temporalis muscles. It was concluded that this technique worked effectively in relieving the patient’s pain, in addition to being a non-invasive and reversible technique. Descriptors: Temporomandibular joint, botulinum toxins Type A, facial pain. ¹ Dr in Orthodontics – SLMandic, Coordinator and Professor of the Specialization in HFH – ABCD/PI. ² Post-graduate student in Orofacial Harmonization – ABCD-PI. ³ Undergraduate student in Dentistry – UNINASSAU/PI. DOI: 10.24077/2021281621