Zdravkovic Dejan, Jovanovic Milica, Papic Milos, Ristic Vladimir, Milojevic Samanovic Andjela, Kocovic Aleksandar, Sovrlic Miroslav, Vuletic Miona, Misic Aleksandra, Mladenovic Rasa, Milosavljevic Marko, Todic Jelena
Department of Dentistry, Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia.
Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, 34000 Kragujevac, Serbia.
Diagnostics (Basel). 2022 Apr 6;12(4):911. doi: 10.3390/diagnostics12040911.
This study aimed to evaluate the applicability of the Kvaal method in determining the age of a Serbian population. In this retrospective descriptive study, 170 dental patients (age range 16-77 years) were included. The measurements of six types of teeth were performed on digital orthopantomography radiographs according to the Kvaal method. Statistical inter-observer and intra-observer reliabilities were calculated to evaluate the reproducibility of the measurements, as well as to examine the correlation between chronological age and measured values. The evaluation revealed a substantial difference (over 12 years) between chronological and estimated age. The P ratio had the strongest correlation with chronological age for the maxillary central (r = ±0.293) and lateral incisors (r = ±0.240), whereas the pulp/root width ratio at level A had the strongest correlation for the mandibular first premolars (r = ±0.270). The lowest SD values, for measurements on teeth 15/25 (SD = 125,787), had the most accurate correlation with age. Thus, we can conclude that the original Kvaal method is not applicable in the age estimation of the Serbian population. For future research, we suggest using cone beam computer tomography as a precise technology to evaluate the applicability of Kvaal and other methods for age estimation.
本研究旨在评估Kvaal方法在确定塞尔维亚人群年龄方面的适用性。在这项回顾性描述性研究中，纳入了170名牙科患者（年龄范围为16至77岁）。根据Kvaal方法，在数字化曲面断层X线片上对六种类型的牙齿进行测量。计算了观察者间和观察者内的统计可靠性，以评估测量的可重复性，并检验实际年龄与测量值之间的相关性。评估显示实际年龄与估计年龄之间存在显著差异（超过12岁）。在上颌中切牙（r = ±0.293）和侧切牙（r = ±0.240）中，P比率与实际年龄的相关性最强，而在下颌第一前磨牙中，A水平处的牙髓/牙根宽度比率与实际年龄的相关性最强（r = ±0.270）。在牙齿15/25上进行测量时，最低的标准差（SD）值（SD = 125,787）与年龄的相关性最准确。因此，我们可以得出结论，原始的Kvaal方法不适用于塞尔维亚人群的年龄估计。对于未来的研究，我们建议使用锥形束计算机断层扫描作为一种精确技术，以评估Kvaal方法和其他年龄估计方法的适用性。
