Clinical Significance Clinically, the mandible is a critical area for dentists and oral surgeons. While the bone maintains density through use, it can still change shape slightly over time.
Anatomy of the Mandible Horizontal Body and Rami
Comparison with the Upper Jaw Feature Mandible (Lower Jaw) Maxilla (Upper Jaw) Mobility Highly movable Fixed Mobility Highly movable Fixed Bone Structure Single fused bone Two separate bones Bone Structure Single fused bone Two separate bones Function Chewing and speech Supports nose and eye sockets Function Chewing and speech Supports nose and eye sockets. The temporomandibular joint (TMJ) connects the mandible to the skull, enabling the complex sliding and hinge movements required for these functions.
The lower jawbone is called the mandible, the only movable bone of the skull that forms the lower jaw and holds the lower teeth in place. Anatomy of the Mandible Structurally, the mandible consists of a horizontal body that anchors the lower teeth and two vertical rami that connect to the temporal bones of the skull.
Anatomy of the Mandible Horizontal Body and Rami
This growth is influenced by genetic factors, nutritional intake, and habitual behaviors like thumb sucking. The mandible is the largest and strongest facial bone, composed of compact bone with a spongy interior.
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