Oral surgery, oral medicine, oral pathology and oral radiology · 2013
Visualization of the superior and inferior borders of the mandibular canal: a comparative study using digital panoramic radiographs and cross-sectional computed tomography images.
Сравнительное исследованиеСтатьяНазвание и аннотация: Перевод в очереди
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Kamrun Nahar, Tetsumura Akemi, Nomura Yoshikazu, Yamaguchi Satoshi, Baba Otto, Nakamura Shin, Watanabe Hiroshi, Kurabayashi Tohru
Аннотация
OBJECTIVE: To evaluate the visibility of the superior and inferior borders of mandibular canal using panoramic radiography (PR) and cross-sectional computed tomography (CT) images.
STUDY DESIGN: Digital panoramic images and cross-sectional CT images of 100 patients were evaluated. The mandibular canal was divided into 4 areas of equal width (1-4), from anterior to posterior. The visibility of the superior and inferior borders was assessed using a 5-point visibility scoring system, with lower scores for worse visibility.
RESULTS: For both modalities, the superior border showed significantly lower score than the inferior border in all areas. For the superior border, areas 1, 2, and 3 all showed significantly lower scores than area 4 for PR, whereas only area 1 showed a lower score than area 4 for CT.
CONCLUSIONS: The visibility of the superior border was very poor on panoramic images. The use of cross-sectional CT images remarkably improved this poor visualization.
STUDY DESIGN: Digital panoramic images and cross-sectional CT images of 100 patients were evaluated. The mandibular canal was divided into 4 areas of equal width (1-4), from anterior to posterior. The visibility of the superior and inferior borders was assessed using a 5-point visibility scoring system, with lower scores for worse visibility.
RESULTS: For both modalities, the superior border showed significantly lower score than the inferior border in all areas. For the superior border, areas 1, 2, and 3 all showed significantly lower scores than area 4 for PR, whereas only area 1 showed a lower score than area 4 for CT.
CONCLUSIONS: The visibility of the superior border was very poor on panoramic images. The use of cross-sectional CT images remarkably improved this poor visualization.
Предметные рубрики MeSH
AdolescentAdultAgedAged, 80 and overAnatomic LandmarksAnatomy, Cross-SectionalDental ImplantsFemaleHumansJaw CystsMaleMandibleMandibular DiseasesMandibular FracturesMandibular NeoplasmsMiddle AgedMultidetector Computed TomographyOsteomyelitisPatient Care PlanningRadiographic Image EnhancementRadiography, Dental, DigitalRadiography, PanoramicRetrospective StudiesYoung Adult