Comparative efficacy of low-Level laser and TENS in the symptomatic relief of temporomandibular joint disorders: A randomized clinical trial

Indian J Dent Res. 2020 Jan-Feb;31(1):42-47. doi: 10.4103/ijdr.IJDR_735_18.


Aim: Temporomandibular disorders (TMDs) comprise a number of signs and symptoms affecting the masticatory muscles, temporomandibular joint (TMJ), or both. Because of the multifactorial etiology of such problems, the treatment usually involves more than one modality.

Objectives: Therefore, the aim of this study was to compare the effectiveness of transcutaneous electric nerve stimulation (TENS) and low-level laser therapy for the treatment of patients with TMD. Materials and Methods: The clinical trial was performed with 60 patients diagnosed with TMD of multiple causes. All the patients received both methods of treatment in 6 consecutive weeks. A paired t-test was applied to verify the significance of the results. Results: A significant improvement in the range of motion and pain relief for both the therapies was observed.

Conclusions: Comparatively after analyzing the two methods, the values obtained after LLLT were significantly higher than those obtained after TENS therapy (P < 0.01).

Keywords: Low-level laser; physical therapy; temporomandibular joint disorders; transcutaneous electric nerve stimulation.

Publication types

  • Randomized Controlled Trial

MeSH terms

  • Humans
  • Low-Level Light Therapy*
  • Masticatory Muscles
  • Temporomandibular Joint
  • Temporomandibular Joint Disorders*
  • Transcutaneous Electric Nerve Stimulation*
  • Treatment Outcome