Effects of acupuncture and related techniques in temporomandibular disorders (TMD): A systematic review

Abstract

Acupuncture has shown promise as a therapeutic option in temporomandibular disorders (TMD). Its benefits include pain relief, reduction of muscle tension and improvement of jaw function. Several alternative approaches, including dry needling and laser acupuncture, were also reported to improve TMD symptoms. This review aims to summarise the most recent studies available on these alternative therapies for TMD. An electronic literature search was conducted in 3 databases, PubMed, Web of Science, and Scopus, in order to identify articles on acupuncture, dry needling, or laser acupuncture. Search development, process, and two-step article selection were conducted by independent researchers. Data was extracted regarding study characteristics, population characteristics, acupuncture points or techniques used, and assessment methods for diagnosis and effects. Out of 431 identified results, 20 were selected for inclusion. We identified 11 studies on acupuncture, 3 studies on laser acupuncture and 6 studies on dry needling. Most studies showed improvement of TMD symptoms post-intervention, assessed by pain scales and maximum mouth opening. Overall, most studies showed promising results for acupuncture as an alternative, minimally invasive treatment method for TMD. When compared to controls or placebo, acupuncture, and related techniques result in significant relief of TMD symptoms.

Keywords

• laser acupuncture
• acupuncture
• dry needling
• temporomandibular joint dys-function
• tmd