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How does the periodontal membrane help the nervous system coordinate chewing?

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A labeled cross section illustration of an adult human molar shows the tooth's crown and root, with layers including enamel, dentin, and pulp, as well as gum, cementum, blood vessels, periodontal ligament, lateral canals, and nerve. — tooth Cross section of an adult human molar.

The periodontal membrane facilitates the coordination of chewing by acting as a sensory bridge between the teeth and the central nervous system.

While the membrane serves to anchor the tooth and resist the mechanical stresses of chewing, it also contains specialized sensory nerve endings. These endings provide proprioceptive sensation—feedback regarding stimuli originating from within the body—which informs the central nervous system about the position and pressure of the teeth during use. This sensory data is essential for the system to regulate and coordinate the complex muscle activity required for effective mastication and swallowing.1