Without thickening of the vestibular lamina in an occlusal direction the vestibule would not exist because clefting or splitting of the epithelium would not occur.

Question

Quizplus · Accepted Answer

Formation of the vestibule is dependent on thickening of the epithelium in a facial or buccal direction from the lamina dura.This is followed by an epithelial clefting or splitting,which is critical to formation of the area of the mucobuccal or mucolabial fold in the future vestibule.Without formation of this vestibular lamina,the vestibule would end at the level of the alveolar ridge.

Without Thickening of the Vestibular Lamina in an Occlusal Direction