牙髓对使用铒钇铝石榴石激光和Mark III自由电子激光进行窝洞预备的反应。
Pulpal response to cavity preparation with the Er:YAG and Mark III free electron lasers.
作者信息
Sonntag K D, Klitzman B, Burkes E J, Hoke J, Moshonov J
机构信息
Department of Endodontics, University of North Carolina School of Dentistry, Chapel Hill, USA.
出版信息
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1996 Jun;81(6):695-702. doi: 10.1016/s1079-2104(96)80076-x.
OBJECTIVE
The purpose of this investigation was to evaluate the pulp response to class V cavity preparation with the use of the Er:YAG laser and free electron laser.
STUDY DESIGN
Class V cavities were prepared in 133 teeth of four beagle dogs by one of three methods: (1) Er:YAG laser, (2) free electron laser, (3) high-speed handpiece. Treatment occurred at 1 hour, 1 day, 7 days, and 28 days. The teeth were removed and the pulp evaluated. Histologically, the data were evaluated with Mantel-Haenszel analysis.
RESULTS
The Er:YAG laser, free electron laser, and handpiece treatment groups resulted in specimens with normal or mild pulp reactions in 36, 46, and 42 teeth, respectively; moderate or severe reactions were observed in 7, 1, and 1 teeth, respectively. No statistically significant difference in the pulp response to the three treatment modalities was observed.
CONCLUSION
The pulp response to Er:YAG laser and free electron laser application would appear to be similar to the response from high-speed handpiece application.
目的
本研究旨在评估使用铒钇铝石榴石激光（Er:YAG激光）和自由电子激光进行Ⅴ类洞制备时牙髓的反应。
研究设计
采用三种方法之一在4只比格犬的133颗牙齿上制备Ⅴ类洞：（1）Er:YAG激光，（2）自由电子激光，（3）高速手机。分别在1小时、1天、7天和28天进行处理。然后拔除牙齿并评估牙髓情况。在组织学上，采用Mantel-Haenszel分析对数据进行评估。
结果
Er:YAG激光、自由电子激光和手机治疗组分别有36颗、46颗和42颗牙齿的标本出现正常或轻度牙髓反应；分别有7颗、1颗和1颗牙齿出现中度或重度反应。未观察到三种治疗方式在牙髓反应上有统计学显著差异。
结论
牙髓对Er:YAG激光和自由电子激光应用的反应似乎与高速手机应用的反应相似。
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