Blood-Based injection may ease jaw locking and pain

This study tested whether platelet-rich plasma (PRP) injections can help people with a jaw condition where the joint slips out of place (TMJ subluxation). Forty adults received two injections of PRP, made from their own blood, with either a low or high platelet concentration. Researchers measured pain, locking episodes, mouth opening, and joint clicking before treatment and again after 6 months and 5 years to see if the platelet level affects results.