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In humans, the mandible is the largest and lowest bone in the facial skeleton. [2] . It is the only movable bone of the skull (discounting the vibrating ossicles of the middle ear). [3] . It is connected to the skull's temporal bones by the temporomandibular joints.
Teeth are organised into two opposing arches – maxillary (upper) and mandibular (lower). These can be divided down the midline (mid-sagittal plane) into left and right halves. Teeth are positioned in alveolar sockets and connected to the bone by a suspensory periodontal ligament.
What Is the Mandible (Lower Jaw)? The mandible is the lower jaw bone. It holds your bottom teeth, gives shape to the lower face, and connects to the skull through the temporomandibular joint (TMJ) so you can chew, speak, yawn, and bite.