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目前虽然激光已广泛应用于医学领域中,但在口腔技术应用方面仍无明确规范。以往绝大多数被用于预防性目的,且对牙髓的影响尚无报告,作者目的在于确定激光对牙髓的热效应,认识并探索其表面温度对改变牙体硬组织理化性质的影响。材料方法:用人新鲜拔除的88个单根牙分别置于生理盐水中,借助电子计算机化的红外线自计温度仪和温差电偶观察Nd:YAG激光、CO_2激光和氩激光束对
Although the laser has been widely used in the field of medicine, but there is no clear specification of oral technology. In the past, most of them were used for prophylactic purposes, and there was no report on the effects on dental pulp. The purpose of this paper is to determine the thermal effects of laser on pulp, to understand and explore the effect of its surface temperature on the physical and chemical properties of dental hard tissues. Materials and Methods: 88 single-rooted freshly removed human teeth were placed in normal saline, respectively. Nd: YAG laser, CO_2 laser and argon laser beam pairs were observed by computerized infrared thermometer and thermocouple