Intraoral administration of botulinum toxin for continuous dentoalveolar neuropathic pain: A case series

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3 Scopus citations

Abstract

Aims: To examine the analgesic effect, safety, and tolerability of intraoral administration of onabotulinum toxin A (BoNT/A) in patients suffering from intractable continuous dentoalveolar neuropathic pain. Methods: Eight patients (six women and two men) of ages ranging from 21 to 73 years (mean [standard deviation] 52.4 [16.1] years) suffering from continuous dentoalveolar pain for a mean duration of 5.8 (4.4) years received a submucosal injection of 10 to 25 units of BoNT/A into the vestibular mucosa surrounding the painful site. Pain intensity levels were recorded using a verbal rating scale (VRS). Safety and tolerability of BoNT/A were measured based on patient self-report, including any adverse effects reported by the patient at the injection site. Results: Five of eight patients reported positive pain reduction. In this group, mean pain intensity on a 0-10 VAS was 4.8 (2.2) at baseline and 2.6 (2.1) at postinjection. The analgesic effect was maximal between 7 and 14 days postinjection and lasted for 1 to 8 weeks before subsequently returning to the pre-injection levels. No adverse effects were reported at the injection sites. One patient noted transient partial hemifacial paralysis. Conclusion: These results suggest the potential therapeutic benefit of BoNT/A in the management of continuous dentoalveolar neuropathic pain. Further investigations conducted via well-controlled studies in the area of orofacial pain are warranted.

Original languageEnglish
Pages (from-to)160-164
Number of pages5
JournalJournal of Oral and Facial Pain and Headache
Volume33
Issue number2
DOIs
StatePublished - May 1 2019

Bibliographical note

Publisher Copyright:
© 2019 by Quintessence Publishing Co Inc.

Keywords

  • Chronic pain
  • Continuous neuropathic pain
  • Dentoalveolar neuropathic pain
  • Onabotulinum toxin A
  • Orofacial pain

ASJC Scopus subject areas

  • Dentistry (miscellaneous)
  • Clinical Neurology
  • Anesthesiology and Pain Medicine

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