Therapeutic Effect of Using Injectable Hypertonic Saline 5% Versus Injectable Dextrose 20% on Pain in Painful Cases of Disc Displacement With Reduction

Overview

This study is aiming to assess effect of hypertonic saline 5% in comparison to dextrose 20% on pain ,inter-insical opening and movements of jaw in painful cases of disc displacement with reduction

Intra-articular disorders of the TMJ have been defined as an abnormal positional relationship between the disc and the condyle, articular eminence, and/or articular fossa. The term internal derangement of the temporomandibular joint (TMJ) indicates an abnormal relationship between the disc, the condyle, and the articular eminence that constrains proper joint function The disc displacement could be with or without reduction. In disc displacement with reduction, the disc is displaced anterior to the condylar head and remains in this position as long as the mouth is closed. Upon mouth opening, the disc regains its position on the condylar head. The movement of the disc onto and off the condylar head may lead to a clicking sound . The precise source of internal derangements is not clear; however, it is a complex disorder likely caused by a combination of micro- or macro-trauma, parafunctional behavior, laxity of the joint's soft tissues, and alterations in the synovial fluid's composition The aims of the internal derangement treatment include alleviating pain, reducing or eliminating joint noises, increasing the degree of mouth opening, and consequently restoring normal TMJ function. Soft diet, behavior adjustment, analgesics, occlusal splints, intra-articular injections, physiotherapy, arthrocentesis, arthroscopy, and open joint surgery are the most common therapeutic techniques Injecting a non pharmacological irritant solution ,such as dextrose, into the area of the tendons or ligaments is known as prolotherapy, which is also known as regenerative injection therapy. It is hypothesized that this procedure elicits a non inflammatory or inflammatory process that ultimately leads to the deposition of new collagen fibers that strengthen lax tendons or ligaments and possibly encourage the release of local growth factor Different substances have been utilized for prolotherapy, but hypertonic dextrose is the most commonly utilized solution since it is affordable, accessible, and safe to inject Dextrose solution has been used at various concentrations ranging from 10% to 50% The superior joint space and peri-capsular soft tissues are usually injected during traditional prolotherapy of the TMJ. Injection treatment of TMJs is currently one of the recognized therapeutic techniques. Due to its invasive nature, only patients who have exhausted the less invasive treatment options are typically eligible for injection treatment. Depending on the injectable substance used, injection treatment provides pain relief and increases the range of mandibular mobility Hypertonic saline , administered via intra-articular injection has been widely used in many previous clinical trials ,it has been used in patients with knee osteoarthritis and show significant improvement regarding pain, stiffness and function of joint hypertonic saline has a significant pain relief effect ,it acts as an analgesic by alleviating nociceptive pain from inflamed tissues, which may include bone, connective tissue, synovium, or a combination of these

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