Category Archives: Oral medicine and pathology

Anatomy of temporomandibular joint Part 2

Articular coverings :

The smooth slippery, pressure bearing tissue carpeting, the surfaces of the bones varies in thickness across different articular areas. It is essentially a bed of tough collagen fibres bound by special glycoproteins. On the condyle, the tissue is thickest in anteroposterior direction and thickness is greater medially (average measurements 0.37 mm laterally and 0.48 mm medially). On temporal component, it is thickest along articular eminence and preglenoid plane. The thickness is less medially (0.49 mm and 0.36 mm for eminence and plane respectively laterally and 0.45 mm and 0.34 mm medially). In the depth of the mandibular fossa the thickness of periosteum is merely 0.07 mm. Continue reading

Anatomy of Temporomandibular Joint Part 1

Temporomandibular joint also known as jaw joint or mandibular joint is an ellipsoid variety of synovial joints, right and left joints forming a bicondylar articulation (Williams et al, 1999). The common features of synovial joints exhibited by this joint include a fibrous capsule, synovial membrane et fluid and tough adjacent ligaments etc. However the features which differentiate and make it unique in itself are: Continue reading