Legović Mario, Sasso Anja, Legović Izak, Brumini Gordana, Cabov Tomislav, Slaj Martina, Vancura Irena, Lapter Marina
Department of Orthodontics, School of Medicine, University of Rijeka, Croatia.
J Forensic Sci. 2010 Jan;55(1):14-8. doi: 10.1111/j.1556-4029.2009.01238.x. Epub 2009 Dec 2.
The aim of this study was to determine the development of the mandibular third molar and its relation to chronological age. The evaluated material consisted of 979 orthopantomograms of patients of Croatian Caucasian origin aged between 5.7 and 14.6 years. Third molar developmental stages were evaluated according to the stages proposed by Nolla. The frequencies of different stages of mineralization and the mean value of the mineralization of the mandibular third molars with regard to age, gender, and size of the mandible were determined and the coefficient of correlation determined between the age of the subject and the stage of development of the mandibular molars. Statistically significant correlation was determined between mineralization of the mandibular third molar and chronological age of the subjects (boys, mandibular left third molar r = 0.779, right third molar r = 0.793; girls, mandibular left third molar r = 0.746, right third molar r = 0.725). It can be concluded that the accuracy of age estimation based on Nolla's method is applicable for Croatian children.
本研究的目的是确定下颌第三磨牙的发育情况及其与实际年龄的关系。评估材料包括979例年龄在5.7至14.6岁之间的克罗地亚白种人患者的曲面断层片。根据诺拉提出的阶段评估第三磨牙的发育阶段。确定了不同矿化阶段的频率以及下颌第三磨牙矿化的平均值与年龄、性别和下颌骨大小的关系，并确定了受试者年龄与下颌磨牙发育阶段之间的相关系数。在下颌第三磨牙矿化与受试者实际年龄之间确定了具有统计学意义的相关性（男孩，下颌左第三磨牙r = 0.779，右第三磨牙r = 0.793；女孩，下颌左第三磨牙r = 0.746，右第三磨牙r = 0.725）。可以得出结论，基于诺拉方法的年龄估计准确性适用于克罗地亚儿童。
