title: Intraoral administration of botulinum toxin for trigeminal neuropathic pain.
abstract: This article presents 2 cases of different neuropathic trigeminal pain conditions treated with intraoral botulinum toxin injections. There is a growing body of evidence to support the use of this substance when administered subcutaneously in the treatment of neuropathic pain, such as in extraoral injections for trigeminal neuralgia. However, reports of intraoral submucosal administration are still lacking. In the 2 cases presented here, neuropathic pain was refractory to treatment with an important intraoral peripheral component, so onabotulinum toxin A was introduced as an adjuvant therapy. The technique, doses, and dilution are discussed. The patients reported significant reductions in pain frequency and intensity, with minimal side effects of temporary mucosal dryness and smile droopiness. The analgesic benefits of botulinum toxin may be utilized to address intraoral neuropathic pain. Further studies are needed to confirm safety and effectiveness in larger samples.
authors.affiliation: Division of TMD & Orofacial Pain, School of Dentistry, University of Minnesota, Minneapolis, MN, USA. Electronic address: Herre220@umn.edu.
authors.forename: Alberto
authors.initials: A
authors.lastname: Herrero Babiloni
authors.affiliation: Division of TMD & Orofacial Pain, School of Dentistry, University of Minnesota, Minneapolis, MN, USA.
authors.forename: Flavia P
authors.initials: FP
authors.lastname: Kapos
authors.affiliation: Division of TMD & Orofacial Pain, School of Dentistry, University of Minnesota, Minneapolis, MN, USA; Department of Neurology, Medical School, University of Minnesota, Minneapolis, Minneapolis, MN, USA; HealthPartners Institute for Education and Research, Bloomington, MN, USA.
authors.forename: Donald R
authors.initials: DR
authors.lastname: Nixdorf
mesh_terms: D019274:Botulinum Toxins, Type A / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D008875:Middle Aged; D059408:Pain Management; D010147:Pain Measurement; D014277:Trigeminal Neuralgia / Q000188:drug therapy*
chemical_list: D019274:Botulinum Toxins, Type A