Overbite is a measure of the vertical overlap of the upper and lower front teeth. Excessive overbite may be caused by disproportionate eruption of front teeth, or over development of the bone that supports the teeth. Excessive overbite is commonly seen in conjunction with a Class II relationship (see below). Overbite is also known as a deep bite.

Overbite should be corrected because it can:

• Cause improper functioning of your front teeth.
• Result in the lower front teeth biting into the gum.
  tissue of the palate leading to periodontal problems.
• Unusual wear of the lower front teeth.
• Be related of jaw joint dysfunction (TMJ)
• Make your smile less attractive.