Yadav Vijayta, Loomba Anju, Autar Ram
Department of Orthodontics, Career Dental College and Hospital, Lucknow, Uttar Pradesh, India.
Department of Orthodontics, Chandra Dental College and Hospital, Lucknow, Uttar Pradesh, India.
Natl J Maxillofac Surg. 2017 Jan-Jun;8(1):26-33. doi: 10.4103/njms.NJMS_55_16.
Many researchers have reported relationships between the calcification stages of individual teeth and skeletal maturity. A few studies are available in the literature about Indian populations. In view of this fact, this study was conducted to investigate the relationship between the dental calcification stages and skeletal maturity stages among North-Indian individuals. The objective of this study was to determine whether dental calcification can be used as a first-level diagnostic tool for assessment of skeletal maturity.
The study participants included (60 males, 60 females) ranging from 7 to 13 years. A total of 120 dental panoramic radiographs and hand-wrist radiographs were obtained and analyzed. Calcification stages of the mandibular dentition (canines, first premolars, second premolars, and second molars) were rated according to the system of Demirjian . Skeletal maturity indicators stages were determined using the Fishman method.
Bivarate correlation ranged from 0.58 to 0.75 for males and 0.73 to 0.84 for females. Canine showed the highest correlation in males and second molar showed the highest correlation in females. Canine calcification Stage H represent prepeak of the pubertal growth spurt in male patients. Calcification Stage G for second molar represents the prepeak and Stage H represents the peak of pubertal growth spurt in females.
许多研究人员报告了个别牙齿的钙化阶段与骨骼成熟度之间的关系。关于印度人群的文献中有一些相关研究。鉴于此,本研究旨在调查北印度个体的牙齿钙化阶段与骨骼成熟阶段之间的关系。本研究的目的是确定牙齿钙化是否可作为评估骨骼成熟度的一级诊断工具。
研究参与者包括60名男性和60名女性,年龄在7至13岁之间。共获取并分析了120张口腔全景X线片和手部腕部X线片。根据德米尔坚系统对下颌牙列(尖牙、第一前磨牙、第二前磨牙和第二磨牙)的钙化阶段进行评级。使用菲什曼方法确定骨骼成熟指标阶段。
男性的双变量相关性在0.58至0.75之间,女性在0.73至0.84之间。尖牙在男性中显示出最高的相关性,第二磨牙在女性中显示出最高的相关性。男性患者中尖牙钙化H阶段代表青春期生长高峰前。女性中第二磨牙钙化G阶段代表青春期生长高峰前,H阶段代表青春期生长高峰。