Dental maturation assessment of Nanjing children aged 3 -16 years

VernacularTitle:南京地区3～16岁儿童恒牙发育趋势初探
Author: Ling LI ; Hu LI ; Chao SUN ; Jialu YUAN ; Ling ZHU
Publication Type:Journal Article
Keywords: Permanent dentition development; Nolla's technique; Dental age
From: Journal of Practical Stomatology 2015;(4):542-546
CountryChina
Language:Chinese
Abstract: [Abstract ]Objective:To estimate dental maturation norms of permanent dentition in a group of Nanjing children using Nolla's tech-nique.Methods:549 cases of panoramic radiographs (279 males and 270 females)of Nanjing children at the age range of 3 to 16 years were collected for the study.All permanent mandibular teeth on the left side (except for the third molars)were scored according to Nolla's method,and data were presented in tables and used to plot dental maturation curves for the Nanjing boys and girls.Results:Females were found to be more advanced in the degrees of dental development.Dental maturation is significantly associated with chron-ological age (for males and females:r =0.959,P <0.001 and r =0.953,P <0.001,respectively).The mathematical model of them was established,and then the fitting equation was obtained.Conclusion:The dental maturation curve and chronology of permanent dentition can provide the growth norms of permanent teeth for Nanjing children and facilitate the way for dentists to assess the growing children during diagnosis and treatment planning.