2 guiding points have been created on the skin. The first one is 10 mm in front of the tragus and 2 mm below the tragus line. The second guide point is on the same line, 20 mm in front of the tragus and 6 mm below. After the auriculotemporal nerve block was made, the first 20 gauge needle was inserted from the first point. 2mL Ringer's Lactate solution is injected into the temporomandibular joint area, and then a second 20 gauge needle is entered from the second guide point determined before and pressurized washing is performed with 100 mL of 5% lactate solution to enter the first needle and exit from the second needle.

2 tubes of blood were collected from the patients with the help of vacuumed 10 mL special liquid PRF tubes (Choukroun I-PRF Collection Tubes, Dr. Choukroun) after arthrocentesis. Blood tubes were centrifuged at 700rpm for 3 minutes. 3 mL of liquid PRF was obtained at the top of each tube. Only the second needle was removed without removing the first needle inserted. I-PRF was injected into the joint areas of all patients in the experimental group, with a maximum dose of 2 mL per joint.

2 guiding points have been created on the skin. The first one is 10 mm in front of the tragus and 2 mm below the tragus line. The second guide point is on the same line, 20 mm in front of the tragus and 6 mm below. After the auriculotemporal nerve block was made, the first 20 gauge needle was inserted from the first point. 2mL Ringer's Lactate solution is injected into the temporomandibular joint area, and then a second 20 gauge needle is entered from the second guide point determined before and pressurized washing is performed with 100 mL of 5% lactate solution to enter the first needle and exit from the second needle.

In the Helkimo Clinical Dysfunction Index, the maximum mandibular movement limits are measured vertically and laterally. In addition, TMJ function, muscle pain, TMJ region pain and mandibular motion pain are evaluated separately. After all these evaluations, all the scores given are summed up and a total dysfunction score is obtained. If this total score is 0, the dysfunction is completely healed. If the total score is between 1 and 4, mild dysfunction, between 5 and 9, moderate dysfunction, and between 10 and 25 severe dysfunction.

Since lower scores represent better health, the amount of improvement between sessionsis calculated by subtracting the next score from the previous score.

The patient gives his pain a value between 0-10. The patients' pain scores were recorded by using a 10 cm visual analog scale (VAS) from 0, which represents no pain, to 10, which represents the worst possible pain.

Since lower scores represent better health, the amount of improvement between sessionsis calculated by subtracting the next score from the previous score.

It is the vertical distance between the incisal teeth when the patient opens his mouth to the maximum. It is measured with the help of a caliper.

Since higher scores represent better health, the amount of improvement between sessionsis calculated by subtracting the previous score from the next score.