Difference between revisions of "Temporomandibular Joint"

Temporomandibular Joint (view source)

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	</gallery>The specific question is as follows:{{q2\|Could focusing on diagnostic imaging in an individual reporting orofacial pain and/or masticatory function disturbances compromise the differential diagnosis?}}Interpretation of TMJ imaging requires an understanding of normal joint anatomy.		</gallery>The specific question is as follows:{{q2\|Could focusing on diagnostic imaging in an individual reporting orofacial pain and/or masticatory function disturbances compromise the differential diagnosis?}}Interpretation of TMJ imaging requires an understanding of normal joint anatomy.

	~~The~~ TMJ is a synovial joint between the glenoid fossa of the temporal bone and the mandibular condyle. The central anatomical structure of the TMJ is the articular disc or meniscus. The disc is an oval-shaped fibrocartilaginous structure composed of anterior and posterior articular bands and a thinner center, called the intermediate zone. The intermediate zone gives the disc a biconcave appearance in the sagittal view. The posterior band is generally thicker than the anterior band and both bands are wider in the transverse dimension than in the anteroposterior dimension. The retrodisc tissue or bilaminar zone is rich neurovascular tissue that serves as the posterior attachment of the disc, fusing the disc with the joint capsule and temporal bone. (Figure 5)[[File:TMJ anatomy.jpg\|center\|thumb\|500x500px\|Figura 5: Sezione anatomica della ATM.( vedi testo)]]		As well described in the article by Seyed Mohammad Gharavi et al.<ref>Seyed Mohammad Gharavi, Yujie Qiao, Armaghan Faghihimehr, and Josephina Vossen. Imaging of the Temporomandibular Joint. Diagnostics (Basel). 2022 Apr; 12(4): 1006. Published online 2022 Apr 16. doi: 10.3390/diagnostics12041006. PMCID: PMC9031630. PMID: 35454054</ref> the TMJ is a synovial joint between the glenoid fossa of the temporal bone and the mandibular condyle. The central anatomical structure of the TMJ is the articular disc or meniscus. The disc is an oval-shaped fibrocartilaginous structure composed of anterior and posterior articular bands and a thinner center, called the intermediate zone. The intermediate zone gives the disc a biconcave appearance in the sagittal view. The posterior band is generally thicker than the anterior band and both bands are wider in the transverse dimension than in the anteroposterior dimension. The retrodisc tissue or bilaminar zone is rich neurovascular tissue that serves as the posterior attachment of the disc, fusing the disc with the joint capsule and temporal bone. (Figure 5)[[File:TMJ anatomy.jpg\|center\|thumb\|500x500px\|Figura 5: Sezione anatomica della ATM.( vedi testo)]]