el-Din I M, Fathy L M
Operative Dentistry Department, Faculty of Oral and Dental Medicine, Cairo University.
Egypt Dent J. 1993 Jul;39(3):473-8.
Thirty-two human posterior teeth were used in this study to investigate the effect of pulsed argon laser of different densities (40, 50 and 60 J/Cm2) on the surface topography of human enamel and dentin. The S.E.M. results showed apparent alterations on the surface topography of both tissues. Increasing the energy density from 40 to 60 J/Cm2 showed a worse, destructive changes. Moreover, the effect of argon laser on dentin was more pronounced when compared with that of enamel irrespective of the energy density used.
本研究使用了32颗人类后牙，以探究不同密度（40、50和60 J/Cm2）的脉冲氩激光对人类牙釉质和牙本质表面形貌的影响。扫描电子显微镜（SEM）结果显示，两种组织的表面形貌均出现明显改变。将能量密度从40 J/Cm2提高到60 J/Cm2显示出更严重的破坏性变化。此外，无论使用何种能量密度，氩激光对牙本质的影响与牙釉质相比都更为显著。
