Radiographic features of cleidocranial dysplasia on panoramic radiographs
Symkhampha Khanthaly, 안금선, 허경회, 허민석, 이삼선, 김조은,
소속 상세정보
( Symkhampha Khanthaly ) - University of Health Sciences Faculty of Dentistry Department of Basic Science Division of Oral and Maxillofacial Radiology
안금선 ( Ahn Geum-Sun ) - Kyungbok University Department of Dental Hygiene
허경회 ( Huh Kyung-Hoe ) - Seoul National University School of Dentistry Department of Oral and Maxillofacial Radiology
허민석 ( Heo Min-Suk ) - Seoul National University School of Dentistry Department of Oral and Maxillofacial Radiology
이삼선 ( Lee Sam-Sun ) - Seoul National University School of Dentistry Department of Oral and Maxillofacial Radiology
김조은 ( Kim Jo-Eun ) - Seoul National University Dental Hospital Department of Oral and Maxillofacial Radiology
Abstract
Purpose: This study aimed to investigate the panoramic imaging features of cleidocranial dysplasia (CCD) with a relatively large sample.
Materials and Methods: The panoramic radiographs of 40 CCD patients who visited Seoul National University Dental Hospital between 2004 and 2018 were analyzed. Imaging features were recorded based on the consensus of 2 radiologists according to the following criteria: the number of supernumerary teeth and impacted teeth; the shape of the ascending ramus, condyle, coronoid process, sigmoid notch, antegonial notch, and hard palate; the mandibular midline suture; and the gonial angle.
Results: The mean number of supernumerary teeth and impacted teeth were 6.1 and 8.3, respectively, and the supernumerary teeth and impacted teeth were concentrated in the anterior and premolar regions. Ramus parallelism was dominant (32 patients, 80.0%) and 5 patients (12.5%) showed a mandibular midline suture. The majority of mandibular condyles showed a rounded shape (61.2%), and most coronoid processes were triangular (43.8%) or round (37.5%). The mean gonial angle measured on panoramic radiographs was 122.6°.
Conclusion: Panoramic radiographs were valuable for identifying the features of CCD and confirming the diagnosis. The presence of numerous supernumerary teeth and impacted teeth, especially in the anterior and premolar regions, and the characteristic shapes of the ramus, condyle, and coronoid process on panoramic radiographs may help to diagnose CCD.
키워드
Cleidocranial Dysplasia; Panoramic Radiography; Mandible; Maxilla; Tooth
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