【摘要】 作者分别测试了30颗儿童与成年人新鲜离体活髓牙的直流电阻值，发现儿童电阻值显著低于成年人的电阻值，提出利用电阻抗法测量与诊断龋病时必须考虑年龄的影响。更多还原

【Abstract】 The measurement of direct resistance of 30 Unsalted alive-marrow teeth among children and adultswas made respectlvely. The author found that the resistance of children was lower than that of adults. It wassuggested that the effect of age should be considered as measuring and diagnosing caries using the resistancemethod.更多还原