Kattappagari Kiran Kumar, Kommalapati Radhika Kalyani, Katuri Deepthi, Murakonda Raja Sekhar, Chitturi Ravi Teja, Reddy Baddam Venkat Ramana
Professor, Department of Oral Pathology, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India.
Senior Lecturer, Department of Oral Pathology, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India.
J Int Oral Health. 2014 Nov-Dec;6(6):37-40.
To estimate the age by evaluating the area and length of dentin translucency in single-rooted ground sections of extracted teeth using digital Vernier caliper and stereomicroscope.
Ground sections of single rooted permanent anterior teeth were made and stained with 1% methylene blue. The area and length of dentin translucency were measured using digital Vernier caliper and with the help of stereomicroscope.
Linear regressive analysis showed that estimation of age by assessing the area of dentin translucency with Vernier caliper was statistically significant and showed a high regression co-efficient (R = 0.7738) when compared to evaluation of age by assessment of length. Multilinear regressive analysis done to calculate age by both area and length also showed a high co-efficient of regression (R = 0.7797).
The area of dentin translucency showed good correlation with age when compared to the length.
使用数字游标卡尺和体视显微镜，通过评估拔除牙齿单根磨片上牙本质透明度的面积和长度来估计年龄。
制作单根恒牙前牙的磨片，并用1%亚甲蓝染色。使用数字游标卡尺并借助体视显微镜测量牙本质透明度的面积和长度。
线性回归分析表明，与通过评估长度来估计年龄相比，用游标卡尺评估牙本质透明度面积来估计年龄具有统计学意义，且显示出较高的回归系数（R = 0.7738）。通过面积和长度两者计算年龄的多线性回归分析也显示出较高的回归系数（R = 0.7797）。
与长度相比，牙本质透明度面积与年龄显示出良好的相关性。
