特定人群 Demirjian 曲线在估算沙特儿童牙龄方面的准确性。
Accuracy of population-specific Demirjian curves in the estimation of dental age of Saudi children.
机构信息
Department of Preventive Dentistry, Riyadh Colleges of Dentistry and Pharmacy, Riyadh, Saudi Arabia.
出版信息
Int J Paediatr Dent. 2012 Mar;22(2):125-31. doi: 10.1111/j.1365-263X.2011.01179.x. Epub 2011 Sep 6.
BACKGROUND
The Demirjian eight-stage method is one of the principal methods used to quantify the degree of maturity from age 3 to 17. Aim. The objective of this study was to compare the accuracy of dental age of different population-specific curves, derived using the Demirjian method, to the chronological age of Saudi children aged between 4 and 14.
DESIGN
Panoramic radiographic records of 176 children (91 boys and 85 girls), without any history of systemic disease, were assessed using the Demirjian method, and the dental age was calculated using curves designed for French-Canadian, Belgian, Kuwaiti, and Saudi children. The difference from chronological age (DA-CA) for each curve was then statistically compared using ANOVA, and each of the curves was compared to the chronological age using multinomial regression modelling.
RESULTS
The results suggest that although population-specific curves are more accurate in the prediction of age, a considerable variation within each population still exists.
CONCLUSIONS
The Demirjian method offers great scope in fields that require the study of the pattern of growth rather than the accuracy of age estimation.
背景
德米日金八步法是用于量化 3 至 17 岁之间成熟度的主要方法之一。目的：本研究旨在比较使用德米日金法得出的特定于不同人群的曲线的牙龄准确性，以预测沙特儿童 4 至 14 岁之间的实际年龄。
设计
评估了 176 名儿童（91 名男孩和 85 名女孩）的全景放射记录，这些儿童无任何系统性疾病史，使用德米日金法计算牙龄，并使用为法国加拿大、比利时、科威特和沙特儿童设计的曲线计算牙龄。然后使用方差分析对每个曲线的实际年龄与牙龄的差异进行统计学比较，并使用多项回归建模对每个曲线与实际年龄进行比较。
结果
结果表明，尽管特定于人群的曲线在预测年龄方面更准确，但每个人群中仍然存在相当大的差异。
结论
德米日金法在需要研究生长模式而不是准确估计年龄的领域有很大的应用前景。
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