buccal vestibule, that portion of the vestibule of the mouth that lies between the cheeks and the teeth and gingivae or residual alveolar ridges extending distally from the labial vestibule.
buccal vestibule, that portion of the vestibule of the mouth that lies between the cheeks and the teeth and gingivae or residual alveolar ridges extending distally from the labial vestibule.