title: Inferior alveolar nerve paresthesia relieved by microscopic endodontic treatment.
abstract: We experienced two cases of inferior alveolar nerve paresthesia caused by root canal medicaments, which were successfully relieved by microscopic endodontic treatment. In the first case, the paresthesia might have been attributable to infiltration of calcium hydroxide into the mandibular canal through the root canals of the mandibular left second molar tooth. In the second case, the paresthesia might have been attributable to infiltration of paraformaldehyde through the root canals of the mandibular right second molar tooth. The paresthesia was relieved in both cases by repetitive microscopic endodontic irrigation using physiological saline solution in combination with oral vitamin B12 and adenosine triphosphate.
authors.affiliation: Department of Endodontics, Tokyo Dental College, 1-2-2 Masago, Mihama-ku, Chiba 261-8502, Japan.
authors.forename: Takaaki
authors.initials: T
authors.lastname: Yatsuhashi
authors.forename: Kan-Ichi
authors.initials: K
authors.lastname: Nakagawa
authors.forename: Miho
authors.initials: M
authors.lastname: Matsumoto
authors.forename: Masataka
authors.initials: M
authors.lastname: Kasahara
authors.forename: Tomoko
authors.initials: T
authors.lastname: Igarashi
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Ichinohe
authors.forename: Yuzuru
authors.initials: Y
authors.lastname: Kaneko
mesh_terms: D000328:Adult; D002126:Calcium Hydroxide / Q000009:adverse effects; D020209:Cranial Nerve Injuries / Q000628:therapy; D005119:Extravasation of Diagnostic and Therapeutic Materials / Q000150:complications; D005557:Formaldehyde / Q000009:adverse effects; D006801:Humans; D006987:Hypesthesia / Q000139:chemically induced* / Q000628:therapy*; D008297:Male; D008853:Microscopy; D011108:Polymers / Q000009:adverse effects; D012388:Root Canal Irrigants / Q000009:adverse effects*; D007507:Therapeutic Irrigation / Q000295:instrumentation*; D061221:Trigeminal Nerve Injuries
chemical_list: D011108:Polymers; D012388:Root Canal Irrigants; D005557:Formaldehyde; D002126:Calcium Hydroxide; C003043:paraform