Naik Sushil B, Patil Swapnil N, Kamble Seema D, Mowade Tushar, Motghare Pavan
Lecturer, Department of Public Health Dentistry, VSPM's Dental College & Research Centre , Nagpur, Maharashtra, India .
Lecturer, Department of Public Health Dentistry, Nair Hospital and Dental College Mumbai, Maharashtra, India .
J Clin Diagn Res. 2014 May;8(5):ZC25-8. doi: 10.7860/JCDR/2014/8160.4361. Epub 2014 May 15.
Dental age estimation methods are of particular value because teeth are highly resistant to mechanical, chemical, or physical impacts and time. Teeth are the strongest parts in the human body and are therefore very resistant to external influences, such as extreme temperatures, explosions, and other extreme conditions, which make them available for extensive postmortem periods.
To correlate chronological age with dental age using Demirijian's method.
The study was carried out on 100 digital orthopantamograms (OPG) of patients in the age group of 7 to 24 years. During the analysis, Magnify' and Ruler' tools were used. Mandibular right third molar was used for entire study. Data collected was analysed by using SPSS software.
Development of third molar in all stages was found slightly earlier in males than in females, when chronological age was compared with dental age using Demirjian method. 88% subject showed statistically significant linear correlation between chronological age and developmental age using Demirjian's method.
The linear correlation between chronological age and dental age using to Demirjian's method was more in age group above 16 years and less in age group below 16 years. Demirijian's method is a reliable guide for age estimation in age group of 7 to 24 years of age.
牙齿年龄估计方法具有特殊价值，因为牙齿对机械、化学或物理冲击以及时间具有高度抗性。牙齿是人体中最坚固的部分，因此对外部影响（如极端温度、爆炸和其他极端条件）具有很强的抵抗力，这使得它们在死后很长一段时间内都可供研究。
使用德米里坚方法将实际年龄与牙齿年龄进行关联。
对100例年龄在7至24岁的患者的数字化全景X线片（OPG）进行了研究。分析过程中使用了“放大”和“标尺”工具。整个研究均使用下颌右侧第三磨牙。收集的数据使用SPSS软件进行分析。
使用德米里坚方法将实际年龄与牙齿年龄进行比较时，发现男性第三磨牙在各个阶段的发育略早于女性。88%的受试者使用德米里坚方法显示实际年龄与发育年龄之间存在统计学上的显著线性相关性。
使用德米里坚方法时，实际年龄与牙齿年龄之间的线性相关性在16岁以上年龄组中较高，在16岁以下年龄组中较低。德米里坚方法是7至24岁年龄组年龄估计的可靠指南。
