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  • Title: Stafne bone defects radiographic features in panoramic radiographs: Assessment of 91 cases.
    Author: Hisatomi M, Munhoz L, Asaumi J, Arita ES.
    Journal: Med Oral Patol Oral Cir Bucal; 2019 Jan 01; 24(1):e12-e19. PubMed ID: 30573717.
    Abstract:
    BACKGROUND: To evaluate 91 cases of Stafne bone defect (SBD) in panoramic radiographs (PR) to determine the prevalence of different SBD variants, considering age, gender, and side. Additionally, to assess the most frequent imaging features of SBD. MATERIAL AND METHODS: Participant data were collected from 91 SBD cases with PR imaging. First, SBDs were classified according to their location, as anterior, posterior, or ramus variant. SBD imaging features were classified according to radiographic imaging findings, assessing margins, degree of internal radiolucency, shape, topographic relationship between the defect and mandibular border, location of the defect according to mandibular teeth, and locularity. The topographic relationship between the SBD and the mandibular canal was described for the inferior variant only. Mean sizes were also described. RESULTS: A total of 92 SBD cases were evaluated from 91 radiographs. One case presented multiple defects. Mean patient age was 60.80 years. Men were more affected than women. The most frequent SBD variant was the posterior variant, and the least frequent was the ramus variant. The most observed radiographic features were thick sclerotic bone margin in the entire contour of the defect, partially radiolucent internal content, oval shape, continuity with mandible base without discontinuity of mandible border, third molar region location, and unilocular shape. With the posterior variant only, the most common topographic relationship between the defect and the upper wall of the mandibular canal was the defect located below the upper wall and continuous with the inferior wall of the mandibular canal. CONCLUSIONS: The knowledge of common SBD radiographic imaging features in PR can help dental practitioners with the differential diagnosis of SBD.
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