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首页> 外文会议>Conference on Lasers in Dentistry Ⅷ, Jan 20-21, 2002, San Jose, USA >Comparative clinical evaluation of the immediate and late analgesic effect of GaAlAs diode Lasers of 830 nm and 660 nm in treatment of dentine pain ― Preliminary results
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Comparative clinical evaluation of the immediate and late analgesic effect of GaAlAs diode Lasers of 830 nm and 660 nm in treatment of dentine pain ― Preliminary results

机译：830 nm和660 nm的GaAlAs二极管激光器对牙本质疼痛的即刻和晚期镇痛作用的比较临床评估―初步结果

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摘要

In this comparative clinical study, we aimed at evaluating the immediate and late analgesic effect of GaAlAs diode lasers of 660 nm and 830 nm in treatment of dentine pain. We used GaAlAs diode lasers of 660 nm and 830nm with 35 mW, continuous wave emission, spot size 1mm~2 and a dosage of 4 joules/cm~2 applied to the cervical dentine surface. In total 4 treatment sessions were performed at intervals of 7 days in a period of 4 consecutive weeks. A total of 40 teeth treated were divided into two groups comprising 20 teeth each: one group irradiated with a 660 nm wavelength laser, and the other one with a 830 nm wavelength laser. By means of a quantitative visual analogue scale (V.A.S.), we measured the sensitive responses to cold stimulus pre-treatment, and at a follow-up period of 15 and 30 minutes post-treatment in both groups in order to evaluate the immediate analgesic effect. The late effect was evaluated at a follow-up period of 15 and 30 days. Using the GaAlAs diode laser of 660 nm wavelength resulted in better levels of dentine desensitization, at both immediate and late analgesic effect analysis compared with the use of the GaAlAs diode laser of 830 nm wavelength.
机译：在这项比较性的临床研究中，我们旨在评估660 nm和830 nm的GaAlAs二极管激光器对牙本质疼痛的即时镇痛效果和后期镇痛效果。我们使用35 nmW的660nm和830nm的GaAlAs二极管激光器，连续波发射，光斑尺寸为1mm〜2且剂量为4焦耳/ cm〜2的剂量施加于宫颈牙本质表面。总共连续4周，每7天间隔进行4次治疗。将总共​​治疗的40颗牙齿分为两组，每组20个牙齿：一组用660 nm波长的激光照射，另一组用830 nm波长的激光照射。通过定量视觉模拟量表（VAS），我们测量了两组对冷刺激治疗的敏感反应，并在治疗后15和30分钟的随访期间评估了两组的即时镇痛效果。在15天和30天的随访期内评估了晚期效果。与使用830 nm波长的GaAlAs二极管激光器相比，使用660 nm波长的GaAlAs二极管激光器在立即和后期的镇痛效果分析中，都能改善牙本质的脱敏程度。

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