oral vestibule
Definition: that part of the mouth bounded anteriorly and laterally by the lips and the cheeks, posteriorly and medially by the teeth and/or gums, and above and below by the reflections of the mucosa from the lips and cheeks to the gums.
Synonym(s): vestibulum orisTA, buccal cavity, vestibule of mouth
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Examples: glitazone, GI cocktail, etc.

