title: The relationship of bone loss observed on panoramic radiographs with clinical periodontal screening.
abstract: The aim of this study was to determine the relationship between bone levels observed on dental panoramic tomographs (DPT) and the WHO/FDI recommended periodontal screening technique: the community periodontal index of treatment needs (CPITN). Computer enhancement and digital analysis were used to improve accuracy and reliability. A total of 199 posterior sextants on DPT radiographs from 50 patients (29 female and 21 male) with a mean age of 42 were examined. A statistically significant relationship was found between CPITN and radiographic measurement from the cemento-enamel junction to the alveolar crestal bone margin (A). The relationship between A and CPITN was found to fit the following equation: square root of A = beta 1 + F, where, F is constant and beta 1 is the coefficient corresponding to the i the codes of CPITN. It was concluded that there was a close correlation between the CPITN screening codes and bone loss as measured on the DPT radiograph.
authors.affiliation: School of Clinical Dentistry, University of Sheffield, UK.
authors.forename: T F
authors.initials: TF
authors.lastname: Walsh
authors.forename: O S
authors.initials: OS
authors.lastname: al-Hokail
authors.forename: E B
authors.initials: EB
authors.lastname: Fosam
mesh_terms: D000328:Adult; D000465:Algorithms; D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging*; D000539:Alveolar Process / Q000000981:diagnostic imaging / Q000473:pathology; D000704:Analysis of Variance; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010512:Periodontal Index; D010518:Periodontitis / Q000175:diagnosis*; D011856:Radiographic Image Enhancement; D011862:Radiography, Panoramic; D015203:Reproducibility of Results; D016037:Single-Blind Method; D019237:Tooth Cervix / Q000000981:diagnostic imaging / Q000473:pathology; D014092:Tooth Root / Q000000981:diagnostic imaging / Q000473:pathology