When the tooth departed from gums is irradiated by CW-CO_2 laser, the superficial hardness of the enamel is obviously reduced and the hardness of the secondary surface of the enamel is hardly changed. 本文阐述了连续波二氧化碳激光辐照离体牙,使牙釉表面的硬度明显降低,而次表面的硬度基本不变。
Investigation on Behaviours of Secondary Crystallization of TiO_2 in Titania Enamel 在钛釉中二氧化钛二次析晶行为的研究