title: [Bruxism, temporo-mandibular dysfunction and botulinum toxin].
abstract: Tooth grinding and tooth clenching are unvoluntary mainly nocturnal habits that result in an hypertrophy of masseter and temporalis muscles with an unbalance between opening and closing muscles of the jaw and lead to an alteration of mandibular condyles movements and to hyper pressure in the temporo-mandibular joints (TMJ) which can generate severe pain. Intra muscular injections of botulinum toxin permit to restablish the balance between closing and opening muscles, to relieve pain, to treat masseteric hypertrophy with improvement of face outline and to recover a normal cinetic of temporo-mandibular joints. Moreover, botulinum toxin injections permit to quit habits of tooth grinding and clenching and one single session of injections is curative for 2/3 of the patients. There are no side effects apart from slight diffusion to superficial muscles of the face resulting in a "fixed" smile for about 6 to 8 weeks. So injections of botulinum toxin in masseter and temporalis muscles are an efficient treatment of bruxism and TMJ dysfunction, cheap with no lasting side effect.
authors.affiliation: Service de stomatologie et chirurgie maxillo-faciale de l'hôpital européen Georges-Pompidou, 21, rue Leblanc, 75015 Paris, France. Luc.Chikhani@wanadoo.fr
authors.forename: L
authors.initials: L
authors.lastname: Chikhani
authors.forename: J
authors.initials: J
authors.lastname: Dichamp
mesh_terms: D018726:Anti-Dyskinesia Agents / Q000008:administration & dosage / Q000494:pharmacology*; D001905:Botulinum Toxins / Q000008:administration & dosage / Q000494:pharmacology*; D002012:Bruxism / Q000188:drug therapy*; D006801:Humans; D007273:Injections, Intramuscular; D010146:Pain / Q000209:etiology; D013706:Temporomandibular Joint Dysfunction Syndrome / Q000150:complications / Q000188:drug therapy*; D016896:Treatment Outcome
chemical_list: D018726:Anti-Dyskinesia Agents; D001905:Botulinum Toxins