Patnana Arun Kumar, Vabbalareddy Raja Sekhar, V Vanga Narasimha Rao
Postgraduate Student, Department of Pedodontics and Preventive Dentistry GITAM Dental College and Hospital, Visakhapatnam, Andhra Pradesh, India.
Reader, Department of Pedodontics and Preventive Dentistry GITAM Dental College and Hospital, Visakhapatnam, Andhra Pradesh, India.
Int J Clin Pediatr Dent. 2014 Sep-Dec;7(3):186-91. doi: 10.5005/jp-journals-10005-1262. Epub 2015 Feb 9.
Dental age is important for treatment planning in the specialities of pedodontics and orthodontics. Although, Demirjian's method was considered standard for dental age estimation, it may not be reliable for all population.
The goal of the study was to evaluate the reliability of Demir-jian's, Haavikko's and Willems method of dental age estimation methods in Visakhapatnam (Andhra Pradesh, India) children.
One hundred and two children of 6 to 14 years old who underwent panaromic digital radiography for routine diagnostic purposes were included. Dental age was calculated using Demirjian's, Haavikko's and Willems methods and compared with chronologic age for each patient.
Dental age showed a significant overestimation by Demirjian's method with a mean difference of 0.55 year and underestimation by Haavikko's and Willems methods with a mean difference of 1.95 and 0.20 year respectively when compared with chronologic age. The mean difference between dental age and chronologic age was not significant in Willems method which shows a close relation between dental and chronologic ages.
The dental age estimation by Willems method is found to be more accurate than Demirjian's and Haavikko's methods in Visakhapatnam children. How to cite this article: Patnana AK, Vabbalareddy RS, Vanga NRV. Evaluating the Reliability of Three Different Dental Age Estimation Methods in Visakhapatnam Children. Int J Clin Pediatr Dent 2014;7(3):186-191.
牙龄对于儿童牙科学和正畸学专业的治疗计划很重要。尽管德米吉安方法被认为是牙龄估计的标准方法，但它可能并非对所有人群都可靠。
本研究的目的是评估德米吉安、哈维科和威廉姆斯牙龄估计方法在印度安得拉邦维沙卡帕特南儿童中的可靠性。
纳入了102名6至14岁因常规诊断目的接受全景数字放射摄影的儿童。使用德米吉安、哈维科和威廉姆斯方法计算牙龄，并将每位患者的牙龄与实际年龄进行比较。
与实际年龄相比，德米吉安方法显示牙龄显著高估，平均差异为0.55岁；哈维科和威廉姆斯方法显示牙龄低估，平均差异分别为1.95岁和0.20岁。威廉姆斯方法中牙龄与实际年龄的平均差异不显著，这表明牙龄与实际年龄之间关系密切。
在维沙卡帕特南儿童中，发现威廉姆斯方法的牙龄估计比德米吉安和哈维科方法更准确。如何引用本文：帕特纳纳·AK，瓦巴拉雷迪·RS，万加·NRV。评估维沙卡帕特南儿童三种不同牙龄估计方法的可靠性。《国际临床儿科牙科学杂志》2014年；7(3)：186 - 191。
