title: Long-term evaluation of root resorption occurring during orthodontic treatment.
abstract: The present study was undertaken to evaluate the long-term status of teeth that had undergone root resorption during active orthodontic treatment. A total of 100 patients who exhibited root resorption during appliance therapy were recalled at a mean period of 14.1 years (SD 0.4) after treatment. At those examinations full-mouth sets of periapical radiographs were taken and tooth mobility evaluated. Pretreatment, posttreatment, and long-term periapical radiographs were examined and compared for changes in root length and contour with time. At each stage scores were given on a scale from 0 to 4, depending on the degree of resorption. The maxillary incisors were affected more frequently and to a greater degree than the rest of the teeth during active treatment. The long-term evaluation showed no apparent changes after appliance removal except remodeling of rough and sharp edges. Hypermobility was observed in only two instances.
authors.affiliation: University of Washington, Department of Orthodontics, Seattle.
authors.forename: D N
authors.initials: DN
authors.lastname: Remington
authors.forename: D R
authors.initials: DR
authors.lastname: Joondeph
authors.forename: J
authors.initials: J
authors.lastname: Artun
authors.forename: R A
authors.initials: RA
authors.lastname: Riedel
authors.forename: M K
authors.initials: MK
authors.lastname: Chapko
mesh_terms: D000293:Adolescent; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D009971:Orthodontics, Corrective / Q000009:adverse effects; D011859:Radiography; D012391:Root Resorption / Q000000981:diagnostic imaging / Q000209:etiology / Q000503:physiopathology*; D014086:Tooth Mobility / Q000209:etiology