title: Accidental overextension of endodontic filling material in patients with neurologic complications: a retrospective case series.
abstract: Accidental overextension of filling material during endodontic treatment may cause mechanical and chemical irritation of the adjacent tissue. In this case series, seven patients who complained of neurologic complication after overextension of canal filling material during endodontic treatment were presented. Overextensions of filling material into the surrounding tissues, such as the mandibular canal, bone marrow, and submucosal layer, were confirmed with panoramic radiograph and computed tomographic images. When patients complain of neurological disturbances after root canal treatment, proper radiographic images should be taken to verify any overextension of materials and to determine the specific location of the overfilled materials.
authors.affiliation: Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.
authors.forename: Jo-Eun
authors.initials: JE
authors.lastname: Kim
authors.affiliation: Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.
authors.forename: Jun-Bum
authors.initials: JB
authors.lastname: Cho
authors.affiliation: Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.
authors.forename: Won-Jin
authors.initials: WJ
authors.lastname: Yi
authors.affiliation: Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.
authors.forename: Min-Suk
authors.initials: MS
authors.lastname: Heo
authors.affiliation: Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.
authors.forename: Sam-Sun
authors.initials: SS
authors.lastname: Lee
authors.affiliation: Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.
authors.forename: Soon-Chul
authors.initials: SC
authors.lastname: Choi
authors.affiliation: Department of Oral and Maxillofacial Radiology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.
authors.forename: Kyung-Hoe
authors.initials: KH
authors.lastname: Huh
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D019300:Medical Errors / Q000009:adverse effects*; D008875:Middle Aged; D009422:Nervous System Diseases / Q000000981:diagnostic imaging / Q000209:etiology*; D012189:Retrospective Studies; D012387:Root Canal Filling Materials / Q000009:adverse effects* / Q000627:therapeutic use; D012390:Root Canal Therapy; D055815:Young Adult
chemical_list: D012387:Root Canal Filling Materials
keywords: canal filling material; neurologic complications; overextension; radiographs