title: Lingual cortical mandibular bone depression: frequency and clinical-radiological features in a Brazilian population.
abstract: The aim of this study was to report the frequency and clinical-radiological features of cases of lingual cortical mandibular bone depressions (LCMBD) diagnosed in consecutive panoramic radiographs and cone-beam computed tomography (CBCT) scans from a Brazilian population. The methods included a retrospective analysis of consecutive panoramic radiographs, charts from the Oral Medicine clinic and consecutive CBCT scans. All cases diagnosed as LCMBD were selected and clinical-radiological data were retrieved from the clinical charts and by the analysis of the image exams. Twenty LCMBD cases diagnosed in 18 patients were found, including 2 from 3,000 consecutive panoramic radiographs (0.07%), 6 from 2,421 Oral Medicine patients (0.25%) and 10 from 1,684 CBCT scans (0.59%). The 18 patients had a mean age of 51.5 years and 13 were males. Two patients presented bilateral lesions. Fourteen images (70%) were classified as well-defined. Eighteen affected the posterior area of the mandible and two affected the anterior mandible. Size of the lesions was larger in younger patients. In conclusion, there seemed to be a considerable radiological heterogeneity when comparing the LCMBD cases and it seemed that the images decreased in size with the increase of patient's age.
authors.affiliation: Oral Surgery, Estácio de Sá University, Rio de Janeiro, RJ, Brazil.
authors.forename: Carlos Fernando de Almeida Barros
authors.initials: CF
authors.lastname: Mourão
authors.forename: Águida Maria Menezes Aguiar
authors.initials: ÁM
authors.lastname: Miranda
authors.forename: Eduardo José da Costa
authors.initials: EJ
authors.lastname: Santos
authors.forename: Fábio Ramôa
authors.initials: FR
authors.lastname: Pires
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001938:Brazil / Q000453:epidemiology; D054893:Cone-Beam Computed Tomography / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D015994:Incidence; D007570:Jaw Cysts / Q000000981:diagnostic imaging / Q000453:epidemiology*; D008297:Male; D008336:Mandibular Diseases / Q000000981:diagnostic imaging / Q000453:epidemiology*; D008875:Middle Aged; D011862:Radiography, Panoramic / Q000706:statistics & numerical data; D012189:Retrospective Studies; D055815:Young Adult