利用Demirjian法判断928例青少年下颌恒牙的发育时间

费越, 汪俊

Study on development time of mandibular permanent teeth with Demirjian method in 928 children

FEI Yue, WANG Jun

上海口腔医学 . 2017, (5): 565 -568 . DOI: 10.19439/j.sjos.2017.05.021