The temporomandibular joint is the ginglimoarthrodial joint. It consists of the articulatory surface of the temporal bone known as the articular fossa and the condyle of the manible which are surrounded by the capsule. The joint is divided into two joint cavities by an articular disc. The anterior part of the disc is attached to the capsule, articular eminence and the upper head of the lateral pterygoid. The posterior part relates to the mandibular fossa and the temporal bone, also referred to as the retrodiscal tissue. The three main ligaments stabilize the joint, temporomandibular, stylomandibular and sphenomandibular. The blood supply to the temporomandibular joint comes primarily from the superficial temporal and maxillary branches of the external carotid. Other branches involved in irrigation are the anterior tympanic, deep auricular and ascending pharyngeal arteries. The nerves that innervate the TMJ are the auriculotemporal and masseteric branches of the mandibular nerve which is a branch of the trigeminal nerve. Masticatory muscles are masseter, temporalis, medial pterygoid and lateral pterygoid. The digastric muscle, which is not considered a masticatory muscle, also plays an important role in the function of the mandible. Complicated anatomical configuration of the temporomandibular joint was the reason for developing standardized radiographic techniques which would provide accurate anatomical images. Conventional radiography shows only hard tissues, the images are two-dimensional and superposition of structures and parts of the skull base often occurs. Magnetic resonance (MR) has shown exquisite soft tissue contrast and provides a view of the structures of temporomandibular joint which cannot be differentiated by conventional radiography or computerized tomography, such as articular disc and retrodiscal tissue. Computerized tomography (CT) is superior to conventional radiography for evaluating internal derangements of temporomandibular joint, trauma, degenerative processes and tumors. CBCT provides a definite advantage over other techniques due to its low radiation dose to patient, smaller equipment and ability to provide 3D images. CBCT is a superior method compared to others because it perfectly shows bone morfology and is specially designed for dental practice. As CT and MRI have a number of disadvantages such as high cost, higher radiation exposure (CT) and the possibility of imaging only in specialized institutions, CBCT 43 has imposed itself as a more desirable, acceptable and accessible method in the diagnosis of TMJ.