What happens if deep bite is not treated? In adults with untreated deep bites, orthognathic surgery for jaw problems and/or tooth removal might be necessary. In many cases, a deep bite can cause damage to the surface of the teeth, even when found early. This can often require composite bonding, porcelain veneers or crowns. Causes of deep bite: The deep overbite may be caused by inherent or acquired factor [3]: 1) Inherent factors like Tooth morphology, Skeletal pattern and malocclusion, Condylar growth pattern. 2) Acquired factors like Muscular habit, Changes in tooth position, the loss of posterior supporting teeth, Lateral tongue thrust habit.