title: Developmental disturbance of a mandibular central incisor following trauma to the primary predecessor.
abstract: When a primary tooth sustains a traumatic injury, development of the permanent tooth can be disturbed, leading to various malformations. This case report details the 7-year follow-up of a developmental anomaly of a central mandibular incisor in a 10-year-old Japanese girl with a history of dental trauma that had occurred at age 4. The trauma had resulted in unusual crown dilaceration in the permanent successor, which exhibited a discoloured and abnormal crown morphology. Radiographic examination revealed crown dilaceration of the tooth, which had a curved root canal.
authors.affiliation: Department of Endodontics, Nihon University School of Dentistry.
authors.forename: Tamotsu
authors.initials: T
authors.lastname: Tsurumachi
authors.forename: Yoriyuki
authors.initials: Y
authors.lastname: Hirano
authors.forename: Akiko
authors.initials: A
authors.lastname: Hira
authors.forename: Yasuyo
authors.initials: Y
authors.lastname: Aida
authors.forename: Bunnai
authors.initials: B
authors.lastname: Ogiso
mesh_terms: D002648:Child; D019229:Dentition, Permanent; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008334:Mandible / Q000254:growth & development*; D018677:Tooth Injuries / Q000628:therapy*; D014094:Tooth, Deciduous / Q000254:growth & development / Q000293:injuries*