The joint involved with jaw<unk>  is the temporomandibular joint (TMJ). This joint is located where the mandibular condyles and the temporal bone meet. Membranes that surround the bones help during the hinging and gliding of jaw movement. For the mouth to close it requires the following muscles: the masseter, temporalis, and medial pterygoid muscle. For the jaw to open it requires the lateral pterygoid muscle.
Dislocation of jaw
Overbite
Mandibular fracture
Phossy jaw
Fissured tongue
Anismus
Crenated tongue
Stridor