Minesaki Y
First Department of Prosthetic Dentistry, Kagoshima University Dental School.
Shika Zairyo Kikai. 1990 Jul;9(4):633-46.
The thermal properties (thermal diffusivity and thermal conductivity) of human teeth and some dental cements were measured. The temperature change at the pulp cavity was also measured before and after the restoration with the full metal crown. The thermal insulating efficiency of dental cement was discussed. The thermal diffusivity of human dentin, enamel and dental cements was 2.04 x 10(-3), 3.22 x 10(-3), and 0.99-1.87 x 10(-3) cm2/sec, respectively. The thermal conductivity was 1.36 x 10(-3), 1.84 x 10(-3), and 0.50-1.51 x 10(-3) cal/cm.sec.degrees C, respectively. The dental cement beneath the crown insulated the thermal shock to dental pulp and the thermal insulating efficiency was increased with the decrease in the thermal diffusivity and thermal conductivity of dental cement.
测量了人类牙齿和一些牙科粘固剂的热性能（热扩散率和热导率）。还测量了全金属冠修复前后牙髓腔的温度变化。讨论了牙科粘固剂的隔热效率。人类牙本质、牙釉质和牙科粘固剂的热扩散率分别为2.04×10⁻³、3.22×10⁻³和0.99 - 1.87×10⁻³ cm²/秒。热导率分别为1.36×10⁻³、1.84×10⁻³和0.50 - 1.51×10⁻³ cal/cm·秒·℃。冠下的牙科粘固剂可隔离对牙髓的热冲击，并且随着牙科粘固剂热扩散率和热导率的降低，隔热效率会提高。
