There is uncertainty regarding whether arthroscopy and visualization of the compartments could be more effective for joint lavage compared to arthrocentesis for the treatment of temporomandibular disorders. We conducted a search in Epistemonikos, the largest database of systematic reviews in health, which is maintained by screening multiple sources of information, including MEDLINE, EMBASE, Cochrane, among others. We extracted data from the identified reviews, analyzed the data from the primary studies, performed a meta-analysis and prepared a summary table of the results using the GRADE method. We identified 4 systematic reviews that together included 8 primary studies, of which 2 correspond to randomized trials. We conclude that: 1. Arthroscopy compared to arthrocentesis could reduce postoperative complications (low level of certainty of evidence). 2. Arthroscopy compared to arthrocentesis probably achieves a greater increase in mouth opening. 3. Arthroscopy compared to arthrocentesis may not make any difference in postoperative pain (low certainty of evidence).