The aim of this study is to assess the reliability of imaging in the diagnosis of TMJ disorders, namely, MRI, Cone Beam and and Ultrasonography. This systematic review has allowed an analysis of the scientific literature in the period 2005 to September 2015. This study is based on approved publications that assess the sensitivity, specificity and reliability of each type of imaging technics in the diagnosis of ATM components disorders, their benefits and limitations; and comparison with other imaging technics not discussed in this study. Our research allowed collecting 29 relevant articles from a total of 682 treating the subject over a period of 10 years. This lack of valid articles is disproportionate with the importance and value of the imagery in the diagnosis of temporomandibular joint disorders. Based on the results, a discussion allowed us to conclude that MRI is the most reliable imaging to determine disc movements compared to the condyle, and to diagnose joint effusions. The Ultrasonography has an acceptable reliability in the diagnosis of anterior disc displacement, but it is not reliable for detecting lateral movement of the disc. There is not enough evidence- based studies showing the validity and reliability of these imaging in the diagnosis of all joint disorders, such as joint effusions. In conclusion, further studies in the same subject must be conducted in order to clarify the value of these complementary examinations.