Relationship between maturation indices and morphology of the midpalatal suture obtained using cone-beam computed tomography images
장홍익, 김상철, 채종문, 강경화, 조진우, 장나영, 이근영, 조진형,
소속 상세정보
장홍익 ( Jang Hong-Ik ) - Wonkwang University School of Dentistry Department of Orthodontics
김상철 ( Kim Sang-Cheol ) - Wonkwang University School of Dentistry Department of Orthodontics
채종문 ( Chae Jong-Moon ) - Wonkwang University School of Dentistry Department of Orthodontics
강경화 ( Kang Kyung-Hwa ) - Wonkwang University School of Dentistry Department of Orthodontics
조진우 ( Cho Jin-Woo ) - Wonkwang University Daejeon Dental Hospital Department of Orthodontics
장나영 ( Chang Na-Young ) - Wonkwang University School of Dentistry Department of Orthodontics
이근영 ( Lee Keun-Young ) - Wonkwang University School of Dentistry Department of Orthodontics
조진형 ( Cho Jin-Hyoung ) - Wonkwang University School of Dentistry Department of Orthodontics
KMID : 0361920160460060345
Abstract
Objective: The purpose of this study was to determine whether predicting maturation of the midpalatal suture is possible by classifying its morphology on cone-beam computed tomography (CBCT) images and to investigate relationships with other developmental age indices.
Methods: The morphology of the midpalatal suture was assessed by using CBCT images of 99 patients. Axial plane images of the midpalatal suture were classified into five stages according to the classification scheme. To make the assessment more accurate, the morphology and fusion of the midpalatal suture were additionally investigated on coronal cross-sectional planar images and volume-rendered images. Bone age was evaluated using the hand and wrist method (HWM) and cervical vertebrae method (CVM); dental age (Hellman’s index), sex, and chronological age were also assessed. To evaluate relationships among variables, Spearman’s rho rank test was performed along with crosstabs using contingency coefficients.
Results: The HWM and CVM showed strong correlations with the maturation stage of the midpalatal suture, while other indices showed relatively weak correlations (p < 0.01). Through crosstabs, the HWM and CVM showed high association values with CBCT stage; the HWM demonstrated slightly higher values (p < 0.0001). Based on the HWM, the midpalatal suture was not fused until stage 6 in both sexes.
Conclusions: Among developmental age indices, the HWM and CVM showed strong correlations and high associations, suggesting that they can be useful in assessing maturation of the midpalatal suture.
키워드
Midpalatal suture; Cervical vertebrae; Hand-wrist; Cone-beam computed tomography
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