title: Comparison of oral radiographic findings among 35-year-old Oslo citizens in 1973 and 1984.
abstract: The purpose of the present study was to evaluate a variety of radiographically detectable conditions found on orthopantomograms of 141 individuals as a part of an oral health survey of 35-year-old Oslo citizens, born 1949. Radiographic findings were recorded and compared with those of a similar study made in 1973. The findings revealed a statistically significant reduction in the prevalence of marginal bone loss. The frequencies of endodontically treated teeth and teeth with apical radiolucencies were unchanged.
authors.affiliation: Department of Oral Radiology, Dental Faculty, University of Oslo, Norway.
authors.forename: E M
authors.initials: EM
authors.lastname: Stermer Beyer-Olsen
authors.forename: E
authors.initials: E
authors.lastname: Bjertness
authors.forename: H M
authors.initials: HM
authors.lastname: Eriksen
authors.forename: B F
authors.initials: BF
authors.lastname: Hansen
mesh_terms: D000328:Adult; D001862:Bone Resorption / Q000000981:diagnostic imaging; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D009664:Norway; D010483:Periapical Diseases / Q000000981:diagnostic imaging; D011862:Radiography, Panoramic; D012390:Root Canal Therapy; D014092:Tooth Root / Q000000981:diagnostic imaging; D014095:Tooth, Impacted / Q000000981:diagnostic imaging; D014096:Tooth, Supernumerary / Q000000981:diagnostic imaging; D014097:Tooth, Unerupted / Q000000981:diagnostic imaging