Roth P M, Thrash W J
Am J Orthod Dentofacial Orthop. 1986 Aug;90(2):132-8. doi: 10.1016/0889-5406(86)90045-4.
Transcutaneous electrical nerve stimulation (TENS) was assessed for its effect on periodontal pain associated with orthodontic separation. Forty-five adult subjects were randomly assigned to a TENS group, a placebo TENS group, and a control group. They were further subdivided into intraoral and extraoral electrode placement, and 1-, 2-, and 3-day treatment duration groups. In each patient orthodontic separators were placed mesial and distal to the upper first molars, bilaterally. Subjects were asked to rate their discomfort every 12 hours for 4 days with a 10 cm visual analogue scale. The results showed a significant decrease in reported pain for those subjects in the TENS group at the 24-, 36-, and 48-hour assessment periods as compared to either the placebo or control group. In the control group postseparation discomfort continued through the 60-hour assessment period. The present study suggests that TENS is an effective nonpharmacologic method of controlling postadjustment tooth pain.
经皮电刺激神经疗法（TENS）被评估其对与正畸分牙相关的牙周疼痛的影响。45名成年受试者被随机分为TENS组、安慰剂TENS组和对照组。他们又进一步细分为口腔内和口腔外电极放置组，以及1天、2天和3天治疗持续时间组。在每位患者的双侧上颌第一磨牙近中和远中放置正畸分离器。要求受试者使用10厘米视觉模拟量表，在4天内每12小时对其不适程度进行评分。结果显示，与安慰剂组或对照组相比，TENS组受试者在24小时、36小时和48小时评估期报告的疼痛显著减轻。在对照组中，分牙后的不适持续到60小时评估期。本研究表明，TENS是一种控制调整后牙齿疼痛的有效非药物方法。
