title: Pulpal response to orthodontic tooth movement in adolescents: a radiographic study.
abstract: The purpose of this study was to examine the effect of routine orthodontic treatment on the pulp and periodontal ligament. In a group of adolescent patients who were treated consecutively, radiographs were taken before orthodontic intervention, at the end of retention, and approximately 5 years out of retention. These were compared with radiographs taken at comparable time intervals of a group of patients who had not received orthodontic treatment. Damage to the pulp and the periodontal ligament similar to that seen after traumatic injury was observed only occasionally. A narrowing of the pulp canal was observed from before to after appliance therapy and during the follow-up period in the experimental group. A narrowing of the pulp canal was also seen in the untreated group. Thus this narrowing was interpreted as a normal aging process.
authors.affiliation: Department of Orthodontics, University of Washington, Seattle.
authors.forename: T W
authors.initials: TW
authors.lastname: Popp
authors.forename: J
authors.initials: J
authors.lastname: Artun
authors.forename: L
authors.initials: L
authors.lastname: Linge
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D002648:Child; D003782:Dental Pulp / Q000000981:diagnostic imaging / Q000293:injuries*; D003786:Dental Pulp Cavity / Q000000981:diagnostic imaging / Q000293:injuries*; D006801:Humans; D007180:Incisor / Q000000981:diagnostic imaging / Q000293:injuries*; D009971:Orthodontics, Corrective / Q000009:adverse effects*; D010513:Periodontal Ligament / Q000293:injuries; D011859:Radiography