“…One of the effective therapies in some cases of TMDs are intra-articular injections [ 14 , 15 , 16 , 17 , 18 , 19 ]. The detailed treatment techniques with proven effectiveness include rinsing the joint cavity, administration of hyaluronic acid, and autologous blood products [ 7 , 8 , 14 , 17 , 19 , 20 , 21 ]. Among the latter, platelet-rich plasma (PRP) is the best studied so far ( Figure 2 ) [ 8 , 15 , 16 , 21 , 22 , 23 , 24 , 25 ].…”