Abstract : The aim of this study is to compare two methods of treating temporomandibular joint disc displacement: the TMJ double needle arthrocentesis technique and the anterior repositioning splint. The sample included 20 patients diagnosed using T1 MRI to confirm the diagnosis. Clinical history was taken, symptoms were recorded, and the sample was divided into two groups: 10 patients who underwent the TMJ double needle arthrocentesis technique and 10 patients who underwent the anterior repositioning splint. Follow-up assessments were conducted after one week, one month, and three months. The results demonstrated improvements in pain and joint click sound in both groups, with the anterior repositioning splint showing superior results at the 12-week mark. Additionally, it was observed that there was no increase in the amount of mouth opening in patients who underwent the TMJ double needle arthrocentesis technique, whereas patients who underwent the anterior repositioning splint showed a slight increase in the amount of mouth opening. We conclude that both the anterior repositioning splint and arthrocentesis TMJ are effective in reducing jaw popping in cases of disc displacement with reduction, with the splint demonstrating superiority at week 12 of treatment. Additionally, arthrocentesis TMJ did not lead to increased mouth opening in cases of reduced TMJ dislocations, whereas the splint contributed to a slight improvement in this aspect.