Comparison of conventional lateral cephalograms with corresponding CBCT radiographs
박장서, 박재규, 김희준, 한상선, 정호걸, Park Hyok,
소속 상세정보
박장서 ( Park Chang-Seo ) - Yonsei University College of Dentistry Department of Oral and Maxillofacial Radiology
박재규 ( Park Jae-Kyu ) - Yonsei University College of Dentistry Department of Oral and Maxillofacial Radiology
김희준 ( Kim Hui-Jun ) - Yonsei University College of Dentistry Department of Oral and Maxillofacial Radiology
한상선 ( Han Sang-Sun ) - Yonsei University College of Dentistry Department of Oral and Maxillofacial Radiology
정호걸 ( Jeong Ho-Gul ) - Yonsei University College of Dentistry Department of Oral and Maxillofacial Radiology
( Park Hyok ) - Yonsei University College of Dentistry Department of Oral and Maxillofacial Radiology
KMID : 1024020120420040201
Abstract
Purpose: This study was performed to assess the compatibility of cone beam computed tomography (CBCT) synthesized cephalograms with conventional cephalograms, and to find a method for obtaining normative values for three-dimensional (3D) assessments. Materials and Methods: The sample group consisted of 10 adults with normal occlusion and well-balanced faces. They were imaged using conventional and CBCT cephalograms. The CBCT cephalograms were synthesized from the CBCT data using OnDemand 3D software. Twenty-one angular and 12 linear measurements from each imaging modality were compared and analyzed using paired-t test. Results: The linear measurements between the two imaging modalities were not statistically different (p>0.05) except for the U1 to facial plane distance. The angular measurements between the two imaging modalities were not statistically different (p>0.05) with the exception of the gonial angle, ANB difference, and facial convexity. Conclusion: Two-dimensional cephalometric norms could be readily used for 3D quantitative assessment, if corrected for lateral cephalogram distortion.
키워드
Cone-Beam Computed Tomography; Cephalometry
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