title: Validity of the radiographic assessment of ankylosis. Evaluation of long-term reactions in 10 monkey incisors.
abstract: The accuracy and sensitivity of radiographic assessments of reactive processes in dental tissues were evaluated by comparison of radiographs and histologic sections. Experimental lesions inflicted on the roots of 10 monkey incisors had been observed by means of serially obtained radiographs over a period of 315 to 370 days. The material was used for evaluation of radiographic assessment of ankylosis. For comparative purposes, assessment of the experimental lesion penetrating to the pulp and periapical radiolucency was added. True and falsely positive or negative recordings formed the basis for calculation of the accuracy and sensitivity of the radiographic assessment. The sensitivity, or the observers' ability to detect the actual changes, was high for pulp penetration, intermediate for inflammation, and low for ankylosis.
authors.affiliation: Department of Orthodontics, Dental Faculty, University of Oslo, Norway.
authors.forename: A
authors.initials: A
authors.lastname: Stenvik
authors.forename: E M
authors.initials: EM
authors.lastname: Beyer-Olsen
authors.forename: F
authors.initials: F
authors.lastname: Abyholm
authors.forename: H R
authors.initials: HR
authors.lastname: Haanaes
authors.forename: N W
authors.initials: NW
authors.lastname: Gerner
mesh_terms: D000818:Animals; D000844:Ankylosis / Q000000981:diagnostic imaging* / Q000473:pathology; D003739:Dental Cementum / Q000000981:diagnostic imaging / Q000473:pathology; D003790:Dental Pulp Necrosis / Q000000981:diagnostic imaging / Q000473:pathology; D003804:Dentin / Q000000981:diagnostic imaging / Q000473:pathology; D005069:Evaluation Studies as Topic; D007180:Incisor; D008252:Macaca fascicularis; D015588:Observer Variation; D010485:Periapical Periodontitis / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014076:Tooth Diseases / Q000000981:diagnostic imaging* / Q000473:pathology; D014092:Tooth Root / Q000000981:diagnostic imaging / Q000473:pathology