TMJ Biomechanics | Mandibular Depression

The video tutorial explores the temporomandibular joint (TMJ) by examining its arthrokinematics and osteo kinematics. It explains the phases of mouth opening, highlighting the roles of rotation and translation. The articular disc's function in creating joint cavities and facilitating movement is discussed. Detailed analysis of mandibular movements and muscle roles, particularly the lateral pterygoid, is provided. The tutorial concludes with an explanation of mandibular elevation during mouth closing, emphasizing the reversal of movements and muscle involvement.

What are the two phases of mandibular depression during mouth opening?

What is the significance of the specific point on the disk that the mandibular condyle maintains contact with?

How does gravity assist in the downward rotation of the mandible?

Discuss the difference between the movements involved in opening and closing the mouth.