Transcutaneous electrical nerve stimulation (TENS) therapy is a technique commonly used in pain management and rehabilitation. It works through activation of descending inhibitory neurons of the CNS. While TENS therapy is not exclusive to dentistry, it can be utilized as an adjunctive treatment option in certain dental scenarios, particularly for conditions involving muscle pain, temporomandibular joint (TMJ) disorders, and orofacial pain.1 It has shown great results in inducing salivary secretion in xerostomia patients and has been used as a local anesthetic agent in childrens in pedriatricsubjets. It has also been studied for its role in increasing salivary secretion in subjects with xerostomia and as a local anesthetic agent in pediatric dentistry. Its wide applications in the orofacial region make it an important treatment modality .The purpose of the present review was to describe the general principles and its applications in dentistry along with its indications, advantages, and disadvantages.2,3