title: Labiomandibular paresthesia caused by endodontic treatment: an anatomic and clinical study.
abstract: Labiomandibular paresthesia after root canal treatment is an accident that is still too frequent despite the development of new endodontic techniques. The aim of this anatomical and clinical study is to advance the understanding of how accidents occur so as to avoid them. This anatomical study made it possible to determine the variability of proximity of the apex of the tooth root to the mandibular bundle, as well as the relationship between the nerve and its satellite artery, and to understand how endodontic filling material spreads into the cancellous bone. The clinical study, which included examination with conventional radiology as well as with imaging techniques, enabled us to identify the exact location of the filling material in relation to the mandibular bundle and to correlate this to the occurrence of clinical symptoms and their diverse manifestations.
authors.affiliation: Université René Descartes, Laboratoire d'Anatomie Fonctionnelle, Montrouge, Paris, France.
authors.forename: Françoise
authors.initials: F
authors.lastname: Tilotta-Yasukawa
authors.forename: Sarah
authors.initials: S
authors.lastname: Millot
authors.forename: Aziz
authors.initials: A
authors.lastname: El Haddioui
authors.forename: P
authors.initials: P
authors.lastname: Bravetti
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Gaudy
mesh_terms: D020209:Cranial Nerve Injuries / Q000209:etiology*; D005119:Extravasation of Diagnostic and Therapeutic Materials / Q000150:complications; D006171:Gutta-Percha / Q000009:adverse effects; D006801:Humans; D008334:Mandible / Q000033:anatomy & histology; D008340:Mandibular Nerve / Q000033:anatomy & histology / Q000098:blood supply / Q000187:drug effects*; D010292:Paresthesia / Q000139:chemically induced / Q000209:etiology*; D012387:Root Canal Filling Materials / Q000009:adverse effects*; D012388:Root Canal Irrigants / Q000009:adverse effects; D012389:Root Canal Obturation / Q000009:adverse effects; D018915:Root Canal Preparation / Q000009:adverse effects; D012390:Root Canal Therapy / Q000009:adverse effects*; D019227:Tooth Apex / Q000033:anatomy & histology; D061221:Trigeminal Nerve Injuries; D015035:Zinc Oxide-Eugenol Cement / Q000009:adverse effects
chemical_list: D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; D015035:Zinc Oxide-Eugenol Cement; D006171:Gutta-Percha