Whitters C J, Hall A, Creanor S L, Moseley H, Gilmour W H, Strang R, Saunders W P, Orchardson R
Department of Clinical Physics, University of Glasgow, UK.
J Dent. 1995 Jun;23(3):145-50. doi: 10.1016/0300-5712(95)93571-i.
The pulsed Nd: YAG laser is advocated as an alternative means of providing analgesia during routine dental procedures. Since the evidence to support this claim is mainly anecdotal, a clinical trial was carried out using an electric pulp tester (EPT) to measure the extent and duration of any analgesic effect induced by pulsed Nd: YAG laser treatment. A double-blind crossover experiment involving laser and sham treatments was used on 21 subjects. A small (3.6 arbitrary units) but statistically significant increase was observed in the mean responses measured 5 min after laser treatment with 113 mJ pulses at 15 pulses s-1 (pps) for 3 min. The pain thresholds returned to baseline values after 60 min. No statistically significant changes in threshold were found with the sham treatment. The order in which laser and sham treatment was received made no difference to the results.
脉冲Nd:YAG激光被认为是在常规牙科手术中提供镇痛的一种替代方法。由于支持这一说法的证据主要是轶事性的，因此进行了一项临床试验，使用牙髓电活力测试仪（EPT）来测量脉冲Nd:YAG激光治疗所诱导的任何镇痛效果的程度和持续时间。对21名受试者进行了一项涉及激光和假治疗的双盲交叉实验。在用15脉冲/秒（pps）的113 mJ脉冲进行3分钟激光治疗后5分钟测量的平均反应中，观察到有小幅（3.6任意单位）但具有统计学意义的增加。60分钟后疼痛阈值恢复到基线值。假治疗未发现阈值有统计学意义的变化。接受激光和假治疗的顺序对结果没有影响。
