Research: GRILLO and COLLEAGUES,

Listed in Issue 263

Abstract

GRILLO and COLLEAGUES, 1. Department Community Dentistry, Piracicaba Dental School, University of Campinas, Campinas, Brazil.  gricag@hotmail.com; 2. Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas, Campinas, Brazil; 3. Department Community Dentistry, Piracicaba Dental School, University of Campinas, Campinas, Brazil; 4. Superior School of Agriculture "Luiz de Queiroz", University of Sao Paulo, Sao Paulo, Brazil; 5. Department of Morphology, Piracicaba Dental School, University of Campinas, Campinas, Brazil evaluated the effects of acupuncture in comparison with flat occlusal plane appliance in patients with myogenic temporomandibular dysfunction (TMD).

Background

In this study, the effects of acupuncture in comparison with flat occlusal plane appliance were evaluated in patient with myogenic temporomandibular dysfunction (TMD).

Methodology

The sample consisted of 40 women with TMD and unbalanced energy predominance of Yang Liver Ascension, selected using the Renying and Cunkou pulses, randomly divided into two groups: acupuncture and splint. The effect of treatments on the masseter and anterior temporal muscles was evaluated after 4 weeks of treatment, by means of electromyographic activity (root mean square) and pain pressure threshold. Pain intensity was measured using the visual analog scale, and range of mouth opening was evaluated using a millimetre ruler. All evaluations were performed at the beginning and end of the treatment.

Results

Visual analog scale score was reduced equally in the two groups (p < 0001), and the increase in range of mouth opening was significant in both groups. A significant difference was detected only in pain pressure threshold of the left masseter in the acupuncture group (p < 0.05). Only root mean square in the at rest position of the right temporal muscle diminished in the final stage of the splint group (p < 0.05).

Conclusion

Both treatments reduced the pain intensity of myogenic TMD in the short term and may be considered strategies for control of chronic pain related to TMD.

References

Grillo CM1, Canales Gde L2, Wada RS3, Alves MC4, Barbosa CM2, Berzin F5, de Sousa Mda L3. Could Acupuncture Be Useful in the Treatment of Temporomandibular Dysfunction? J Acupunct Meridian Stud.;8(4):192-9. Aug 2015. doi: 10.1016/j.jams.2014.12.001. Epub Dec 8 2014.

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