Peroz Ingrid, Chun Yong-Hee, Karageorgi Georgina, Schwerin Christiane, Bernhardt Olaf, Roulet Jean-Francois, Freesmeyer Wolfgang B, Meyer Georg, Lange Klaus-Peter
Department of Prosthetic Dentistry and Oral Gerontology, Humboldt University, Berlin, Germany.
J Prosthet Dent. 2004 Feb;91(2):180-7. doi: 10.1016/j.prosdent.2003.12.002.
Pulsed electromagnetic fields have shown therapeutic benefit in the treatment of numerous forms of osteoarthritis but have not been evaluated for their effects on the temporomandibular joint (TMJ).
The aim of this study was to examine the effects of pulsed electromagnetic fields in the treatment of patients with temporomandibular disorders (TMD).
A multicenter clinical trial compared active treatment of 36 patients using pulsed electromagnetic fields to placebo treatment of 42 patients with TMD with pain in 1 or both TMJs and/or limited opening of less than 40 mm. Subjective parameters including pain intensity, pain frequency, degree of limitation, restriction of daily life, and intensity and frequency of joint noises were evaluated using a visual analog scale. Trained, blinded examiners assessed the clinical parameters according to Research Diagnostic Criteria for temporomandibular disorders before treatment (baseline), directly after nine 1-hour treatments on consecutive working days, 6 weeks after treatment, and 4 months after treatment. Statistical evaluation was done using the Friedman test, and by paired comparison between baseline and follow-up examinations using the U test (P < .05).
Seventy-six patients completed the study. For both the active and placebo treatment, significant improvements were seen in the subjective data (P < .01). Patients with anterior disk displacement without reduction also showed significant improvements in active mouth opening (P = .015), patients with ostheoarthritis only showed improvements in some of the subjective parameters (P < .03), and patients with anterior disk displacement with reduction showed no improvement at all.
Pulsed electromagnetic fields had no specific treatment effects in patients with temporomandibular disorders.
脉冲电磁场已显示出对多种形式骨关节炎的治疗益处，但尚未对其对颞下颌关节（TMJ）的影响进行评估。
本研究的目的是检验脉冲电磁场对颞下颌关节紊乱病（TMD）患者的治疗效果。
一项多中心临床试验将36例使用脉冲电磁场进行积极治疗的患者与42例TMD患者的安慰剂治疗进行了比较，这些TMD患者有一个或两个颞下颌关节疼痛和/或开口受限小于40毫米。使用视觉模拟量表评估主观参数，包括疼痛强度、疼痛频率、受限程度、日常生活受限情况以及关节弹响的强度和频率。经过培训的盲法检查者根据颞下颌关节紊乱病的研究诊断标准在治疗前（基线）、连续工作日进行九次1小时治疗后、治疗后6周以及治疗后4个月评估临床参数。使用Friedman检验进行统计评估，并使用U检验在基线和随访检查之间进行配对比较（P < 0.05）。
76例患者完成了研究。对于积极治疗组和安慰剂治疗组，主观数据均有显著改善（P < 0.01）。不可复性盘前移位患者的主动开口度也有显著改善（P = 0.015），骨关节炎患者仅在部分主观参数上有改善（P < 0.03），可复性盘前移位患者则完全没有改善。
脉冲电磁场对颞下颌关节紊乱病患者没有特定的治疗效果。
