氩氟准分子激光照射对牙釉质和牙本质的形态学影响。
Morphological effects of ArF excimer laser irradiation on enamel and dentin.
作者信息
Wilder-Smith P, Lin S, Nguyen A, Liaw L H, Arrastia A M, Lee J P, Berns M W
机构信息
Beckman Laser Institute & Medical Clinic, University of California, Irvine 92715, USA.
出版信息
Lasers Surg Med. 1997;20(2):142-8. doi: 10.1002/(sici)1096-9101(1997)20:2<142::aid-lsm4>3.0.co;2-q.
BACKGROUND AND OBJECTIVE
The aim of this investigation to determine the range of morphological and ablative effects that can be achieved on dental enamel and dentin using ArF excimer laser irradiation at a wavelength of 193nm.
STUDY DESIGN/MATERIALS AND METHODS: Caries-free coronal enamel and dentin surfaces of 20 extracted human teeth were subjected to irradiation at 193nm using a Lamda-Physik model EMG 103 MSC and ArF fill. Morphology of cavity floors and walls were assessed by light microscopy and SEM.
RESULTS
Morphological surface effects and ablation could be controlled effectively and reliably by choice of parameter combination, allowing the operator to achieve either a smooth, flat, or increasingly rough surface with differing degrees of selective ablation. No signs of thermal damage were apparent.
CONCLUSION
Excimer laser irradiation at 193nm provided clinically useful cavity preparations and surface morphological effects.
背景与目的
本研究旨在确定使用波长为193nm的ArF准分子激光照射对牙釉质和牙本质产生的形态学及消融效果范围。
研究设计/材料与方法：使用Lambda-Physik型号EMG 103 MSC和ArF填充物，对20颗拔除的人类牙齿的无龋牙冠釉质和牙本质表面进行193nm波长的照射。通过光学显微镜和扫描电子显微镜评估洞底和洞壁的形态。
结果
通过选择参数组合，可以有效且可靠地控制形态学表面效应和消融，使操作者能够获得具有不同程度选择性消融的光滑、平整或越来越粗糙的表面。未发现热损伤迹象。
结论
193nm准分子激光照射可提供临床上有用的窝洞制备和表面形态学效果。
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