Arcoria C J, Lippas M G, Vitasek B A
Department of Operative Dentistry, Baylor College of Dentistry, Dallas, Texas 75246.
J Oral Rehabil. 1993 Mar;20(2):213-24. doi: 10.1111/j.1365-2842.1993.tb01603.x.
Laser-roughened enamel surfaces have been shown to provide for greater acid-resistance and enhanced restorative material/enamel bond strength. Extracted tooth enamel was irradiated with several lasers: CO2/Nd:YAG (CW), CO2 (RSP), Nd:YAG (CW), Nd:YAG (Q-switched), Argon (CW), and Ar:F excimer. Additional teeth were acid-etched. Energy densities were standardized at 25.47 J/cm2 for all mediums. Surface profile analyses were conducted with a profilometer to determine the amount of enamel surface roughness. The acid-etched samples exhibited both a greater amount of surface roughness and a qualitatively different type of enamel surface morphology than the laser-treated specimens. Independent use of the CO2 and Nd:YAG beams exhibited a moderate amount of roughness, while the coaxial CO2/Nd:YAG beam displayed surface roughness approaching that of the acid-etch samples. Different laser mediums produce enamel surface morphologies that are characteristic of a variety of inherent lasing parameters.
已证明激光糙化的牙釉质表面具有更高的耐酸性和增强的修复材料/牙釉质粘结强度。用几种激光对拔除的牙釉质进行照射：二氧化碳/钕钇铝石榴石（连续波）、二氧化碳（重复脉冲序列）、钕钇铝石榴石（连续波）、钕钇铝石榴石（调Q）、氩（连续波）和氩氟准分子激光。另外的牙齿进行酸蚀处理。所有介质的能量密度均标准化为25.47 J/cm²。用轮廓仪进行表面轮廓分析，以确定牙釉质表面粗糙度的大小。与激光处理的标本相比，酸蚀样品表现出更大的表面粗糙度和定性不同类型的牙釉质表面形态。单独使用二氧化碳和钕钇铝石榴石光束表现出中等程度的粗糙度，而同轴二氧化碳/钕钇铝石榴石光束显示出接近酸蚀样品的表面粗糙度。不同的激光介质产生的牙釉质表面形态具有各种固有激光参数的特征。
