Bajpai Manas, Pardhe Nilesh, Kumar Manish, Agrawal Shyam
Department of Oral and Maxillofacial Pathology, NIMS Dental College, Jaipur, India.
Department of Prosthodontics Crown and Bridge, NIMS Dental College, Jaipur, India.
Prague Med Rep. 2015;116(3):203-9. doi: 10.14712/23362936.2015.59.
The choice to use teeth for age determination is well accepted due to their longevity ability of being resilient to change. The total of 228 extracted teeth collected from the patients visited to the Department of Oral and Maxillofacial Surgery, NIMS Dental College, Jaipur, the teeth were without dental fillings and without and/or cavity selected. The known age was from 21 to 70 years with the average age of 43.46 years. For age estimation the method according to Gustafson was used. Every tooth was subject to longitudinal section of the midpulpal area. The following dental parameters were studied in each case: attrition, periodontal bone loss, root translucency, secondary dentin deposition, cementum apposition and root resorption. Total scores of different parameters plotted against the chronological age and regression formula was obtained. Using this formula ages were estimated, Gustafson formula was also applied in the same scores and ages estimated. The results of the chronological and estimated age by both formulae have been statistically compared using Pearson's correlation and regression analysis. The results showed strong correlation (0.92; p<0.001) between chronological and estimated age by using both formulae. We found the mean error of ±5.47 by using newly derived and formula and ±6.35 by Gustafson's formula. As a result of our study it was found that newly derived formula provides better results in comparison with Gustafson's formula in Indian population. A positive correlation between age and total scores of physiological changes also revealed.
由于牙齿具有抵抗变化的长期稳定性，因此使用牙齿来确定年龄的选择已被广泛接受。从斋浦尔国家医学科学研究所牙科学院口腔颌面外科就诊的患者中收集了总共228颗拔除的牙齿，这些牙齿没有补牙且没有龋洞。已知年龄范围为21至70岁，平均年龄为43.46岁。为了估计年龄，采用了古斯塔夫森（Gustafson）方法。每颗牙齿都进行了牙髓中部区域的纵向切片。在每个病例中研究了以下牙齿参数：磨耗、牙周骨丧失、牙根透明度、继发性牙本质沉积、牙骨质附着和牙根吸收。将不同参数的总分与实际年龄作图，并获得回归公式。使用该公式估计年龄，古斯塔夫森公式也应用于相同的分数和估计年龄。使用皮尔逊（Pearson）相关性和回归分析对两个公式得出的实际年龄和估计年龄结果进行了统计学比较。结果表明，使用两个公式得出的实际年龄和估计年龄之间存在强相关性（0.92；p<0.001）。我们发现使用新推导的公式平均误差为±5.47，使用古斯塔夫森公式平均误差为±6.35。我们的研究结果发现，在印度人群中，新推导的公式与古斯塔夫森公式相比能提供更好的结果。还揭示了年龄与生理变化总分之间的正相关关系。
