On the applicability of secondary dentin formation to radiological age estimation in young adults
On the applicability of secondary dentin formation to radiological age estimation in young adults
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DOI：
10.1111/j.1556-4029.2006.00377.x
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发表时间：
2007-03-01
影响因子：
1.6
通讯作者：
Watzek, Georg
中科院分区：
文献类型：
--
作者：
Meinl, Alexandra;Tangl, Stefan;Watzek, Georg
文献提供了线性回归公式的牙齿年龄估计是基于放射学的二维测量的牙髓大小。本研究的目的是探讨以前提出的回归公式是否可以导致统计上合理的结果和适当的重复性时，适用于年轻人。随机选择了44名年龄在13至24岁之间的奥地利人的Orthopantomograms（OPG）。根据报告的方法，选择每个OPG上的六个牙齿进行测量。进行统计分析，以评估估计的实际年龄与真实实际年龄之间的差异。Kvaal等人（1995年）报告的回归公式导致一致的低估; Republishwinsky等人（2005年）报告的回归公式导致持续高估年龄。观察者内和观察者间变异的统计学分析显示，变异宽度分别低于2%。
The literature provides linear regression formulas for dental age estimation that is based on radiological two-dimensional measurements of the pulp size. The aim of the present study was to explore whether the previously presented regression formulas could lead to statistically sound results and to appropriate repeatability when applied to young individuals. Orthopantomograms (OPGs) of 44 Austrian individuals, aged between 13 and 24 years, were selected at random. In accordance with the reported method, six teeth on each OPG were chosen to carry out the measurements. Statistical analysis was performed in order to assess the difference between the estimated and the true chronological age. The regression formulas reported by Kvaal et al. (1995) led to a consistent underestimation; the regression formulas reported by Paewinsky et al. (2005) resulted in a constant overestimation of age. The statistical analysis of intraobserver and interobserver variation revealed a variation width below 2%, respectively.