Hori H, Fujisawa M, Uetani T, Sinohara K, Tadano H, Horiguchi H, Sekine I
Gifu Shika Gakkai Zasshi. 1989 Dec;16(2):566-70.
Studying of influence of periodontal disease on vitality of pulp, the response thresholds of 421 teeth (250 normal teeth, 171 periodontal diseased teeth) were examined electronically by means of an automatic pulptester. (ANALYTIC TECHNOLOGY CO.) The pulp tester values of three experiments were averaged. The average value of normal teeth was 36.3 and that of periodontal diseased teeth 31.4. The response thresholds of periodontal diseased teeth were lower than those of normal teeth. This indicated that pulp was inflamed by periodontal disease and pulp vitality became weak.
在研究牙周疾病对牙髓活力的影响时，使用自动牙髓活力测试仪（分析技术公司）对421颗牙齿（250颗正常牙齿，171颗牙周病牙齿）的反应阈值进行了电子检测。将三个实验的牙髓活力测试值进行平均。正常牙齿的平均值为36.3，牙周病牙齿的平均值为31.4。牙周病牙齿的反应阈值低于正常牙齿。这表明牙周疾病会使牙髓发炎，牙髓活力变弱。
