The temporomandibular joint (TMJ) is a synovial joint that connects the mandibular to the skull. Its main function is to facilitate the movement of the jaw and when it suffers any type of damage or injury, it leads to a decrease in mobility and pain in the area. This localized pain is called temporomandibular joint disorders (TMJD), and it can be caused by intraarticular or extraarticular disorders. The most common symptoms include acute pain, decreased mouth opening, tightening of the muscle, headache, and loss of joint function. Nowadays, there are treatments for temporomandibular joint dysfunction from surgical procedures up to less invasive methods, such as the use of splints. Platelet rich plasma (PRP), hyaluronic acid (HA) and botulinum toxin (BTX) injections have been categorized as a complement of primary treatment in TMJD, as well as decrease drug excess in patients. Due to their natural origin, PRP and HA can regenerate tissue in cases of cartilage degeneration, inhibit inflammation, slow down the progression of osteoarthritis and increase the production of natural lubricating fluid in the joint. Its intra-articular application reduces pain due to lubrication and nutrition to the avascular areas of the disc and condylar cartilage. Botulinum toxin (BTX) has been used for years in the medical and cosmetic field, but its use in TMJD refers to injections specifically within masseter muscle, with the objective to reduce the muscular tension TMJ overload, therefore, pain decreases, and movement increases. Over the years these less invasive methods have been increasing in the medical area due to the great pain management in the neuro-muscular and articular complex.
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