Fixing a severe overbite can help you avoid significant problems in the future.
"Exceeding the limit is just a matter of concern," said Charles Satire, DMD, a cosmetic dentist. Because the front teeth have a strong tolerance for working inside, teeth should slip together in a deep path, which puts unnecessary pressure on the spot joints and muscles.
Mildness is not usually a cause for concern. According to the Journal of Dentistry, an acute or "deep" overbite that is not treated, e.g.
Problems with the structure that supports teeth.
Tension and wear on teeth.
Difficulty chewing.
Trauma to the roof of the mouth.