Impact of the Laser on Dental Caries
Impact of the Laser on Dental Caries
复制标题
激光对龋齿的影响
作者：
L. Goldman;P. Hornby;R. Meyer;B. Goldman
从生物医学方面来看，激光束的特征是定向和聚焦的能力、高能量密度和一定的选择性1。由于激光束是光束，因此可以通过使用透镜系统来最准确地聚焦。能量密度很高。在这些实验中，目标区域的能量密度约为 9,000 焦耳/cm2。选择性表明有色材料比无色材料吸收更多的现有激光入射光束。除了这些特性之外，牙医感兴趣的是冲击持续时间约为毫秒。
THE characteristics of the laser beam which are of great interest and importance from the biomedical aspect are the ability to direct and to focus, intense energy density and some selectivity1. Since the laser beam is a light beam, it can be focused most accurately by using lens systems. Energy density is intense. In these experiments, the energy density was approximately 9,000 joules/cm2 in the target area. Selectivity indicates that materials which are coloured absorb more of the incident beam of the lasers now available than uncoloured materials. In addition to these properties, of interest to the dentist is the fact that the duration of the impact is in the order of a millisecond.