Demirjian A, Levesque G Y
J Dent Res. 1980 Jul;59(7):1110-22. doi: 10.1177/00220345800590070301.
The dental development of a genetically homogeneous French-Canadian group of children ranging in age from 2.5 to 19 years was evaluated from 5,437 panoramic radiographs by the method of Demirjian et al. The maturity of each mandibular tooth was evaluated individually. For each stage of each tooth, the developmental curves of boys and girls were compared. A common pattern was found for each tooth, namely the chronological similarity between boys and girls in the early stages of development and the advancement of girls over boys for the later stages. Development scores were given to the seven mandibular teeth. Up to five to six years of age, no difference was found in the timing of dental development between boys and girls, in contrast to the older ages where girls were always more developed than boys. When the emergence curve was plotted with developmental curves, a close relation was established between the stage of formation of all teeth and their emergence, hence the predictive value of the use of dental maturity curves in clinics.
采用德米尔坚等人的方法，从5437张全景X光片中评估了年龄在2.5至19岁之间的一组基因同质的法裔加拿大儿童的牙齿发育情况。对每颗下颌牙齿的成熟度进行了单独评估。对于每颗牙齿的每个阶段，比较了男孩和女孩的发育曲线。发现每颗牙齿都有一个共同模式，即在发育早期男孩和女孩在时间上相似，而在后期女孩比男孩发育得更快。为七颗下颌牙齿给出了发育分数。在五岁至六岁之前，男孩和女孩在牙齿发育时间上没有差异，而在较大年龄时，女孩总是比男孩发育得更好。当将萌出曲线与发育曲线绘制在一起时，所有牙齿的形成阶段与其萌出之间建立了密切关系，因此牙齿成熟度曲线在临床中有预测价值。
