PDF(Pubmed)
Abstract：
BACKGROUND: The correlation between dental maturity and skeletal maturity has been proposed, but its clinical application remains challenging. Moreover, the varying correlations observed in different studies indicate the necessity for research tailored to specific populations.
OBJECTIVE: To compare skeletal maturity in Korean children with advanced and delayed dental maturity using dental maturity percentile.
METHODS: Dental panoramic radiographs and cephalometric radiographs were obtained from 5133 and 395 healthy Korean children aged between 4 and 16 years old. Dental maturity was assessed with Demirjian\'s method, while skeletal maturity was assessed with the cervical vertebral maturation method. Standard percentile curves were developed through quantile regression. Advanced (93 boys and 110 girls) and delayed (92 boys and 100 girls) dental maturity groups were defined by the 50th percentile.
RESULTS: The advanced group showed earlier skeletal maturity in multiple cervical stages (CS) in both boys (CS 1, 2, 3, 4, and 6) and girls (CS 1, 3, 4, 5, and 6). Significant differences, as determined by Mann-Whitney U tests, were observed in CS 1 for boys (p = 0.004) and in CS 4 for girls (p = 0.037). High Spearman correlation coefficients between dental maturity and cervical vertebral maturity exceeded 0.826 (p = 0.000) in all groups.
CONCLUSIONS: A correlation between dental and skeletal maturity, as well as advanced skeletal maturity in the advanced dental maturity group, was observed. Using percentile curves to determine dental maturity may aid in assessing skeletal maturity, with potential applications in orthodontic diagnosis and treatment planning.
OBJECTIVE: To compare skeletal maturity in Korean children with advanced and delayed dental maturity using dental maturity percentile.
METHODS: Dental panoramic radiographs and cephalometric radiographs were obtained from 5133 and 395 healthy Korean children aged between 4 and 16 years old. Dental maturity was assessed with Demirjian\'s method, while skeletal maturity was assessed with the cervical vertebral maturation method. Standard percentile curves were developed through quantile regression. Advanced (93 boys and 110 girls) and delayed (92 boys and 100 girls) dental maturity groups were defined by the 50th percentile.
RESULTS: The advanced group showed earlier skeletal maturity in multiple cervical stages (CS) in both boys (CS 1, 2, 3, 4, and 6) and girls (CS 1, 3, 4, 5, and 6). Significant differences, as determined by Mann-Whitney U tests, were observed in CS 1 for boys (p = 0.004) and in CS 4 for girls (p = 0.037). High Spearman correlation coefficients between dental maturity and cervical vertebral maturity exceeded 0.826 (p = 0.000) in all groups.
CONCLUSIONS: A correlation between dental and skeletal maturity, as well as advanced skeletal maturity in the advanced dental maturity group, was observed. Using percentile curves to determine dental maturity may aid in assessing skeletal maturity, with potential applications in orthodontic diagnosis and treatment planning.
摘要：
背景：已经提出了牙齿成熟度与骨骼成熟度之间的相关性，但其临床应用仍具有挑战性。此外，在不同的研究中观察到的不同的相关性表明针对特定人群进行研究的必要性。
目的：使用牙齿成熟度百分位数比较具有牙齿成熟度的韩国儿童的骨骼成熟度。
方法：从5133和395名年龄在4至16岁之间的健康韩国儿童获得牙科全景X光片和头颅X光片。用Demirjian的方法评估牙齿成熟度，而骨骼成熟度用颈椎成熟方法评估。通过分位数回归建立标准百分位曲线。第50百分位数定义了高级（93个男孩和110个女孩）和延迟（92个男孩和100个女孩）牙科成熟度组。
结果：在男孩（CS1、2、3、4和6）和女孩（CS1、3、5和6）中，晚期组的多个宫颈阶段（CS）的骨骼成熟较早。显著差异,根据Mann-WhitneyU测试的结果，在CS1中观察到男孩（p=0.004）和CS4中观察到女孩（p=0.037）。所有组牙齿成熟度和颈椎成熟度之间的Spearman相关系数均超过0.826（p=0.000）。
结论：牙齿和骨骼成熟度之间的相关性，以及晚期牙齿成熟度组中的晚期骨骼成熟度，被观察到。使用百分位曲线来确定牙齿成熟度可能有助于评估骨骼成熟度，在正畸诊断和治疗计划中具有潜在的应用。
目的：使用牙齿成熟度百分位数比较具有牙齿成熟度的韩国儿童的骨骼成熟度。
方法：从5133和395名年龄在4至16岁之间的健康韩国儿童获得牙科全景X光片和头颅X光片。用Demirjian的方法评估牙齿成熟度，而骨骼成熟度用颈椎成熟方法评估。通过分位数回归建立标准百分位曲线。第50百分位数定义了高级（93个男孩和110个女孩）和延迟（92个男孩和100个女孩）牙科成熟度组。
结果：在男孩（CS1、2、3、4和6）和女孩（CS1、3、5和6）中，晚期组的多个宫颈阶段（CS）的骨骼成熟较早。显著差异,根据Mann-WhitneyU测试的结果，在CS1中观察到男孩（p=0.004）和CS4中观察到女孩（p=0.037）。所有组牙齿成熟度和颈椎成熟度之间的Spearman相关系数均超过0.826（p=0.000）。
结论：牙齿和骨骼成熟度之间的相关性，以及晚期牙齿成熟度组中的晚期骨骼成熟度，被观察到。使用百分位曲线来确定牙齿成熟度可能有助于评估骨骼成熟度，在正畸诊断和治疗计划中具有潜在的应用。
