An improper bite doesn't look good. That is the usual reason that people seek treatment from an orthodontist. In addition, an improper bite causes difficulty in chewing. In people with crowded teeth, it can lead to more cavities or gum disease. Treatment of an irregular bite can improve your overall oral health and stabilize your bite.

Incorrect bites are grouped into categories. Common bite problems include:


Here, the upper teeth rest significantly inside or outside the lower teeth. A crossbite often can make it difficult to bite or chew.


Permanent teeth may not have room to move into the right position:

  • If there is not enough room for the teeth
  • If the teeth are unusually large compared with the size of the dental arch
  • If the jaw is narrower than it should be

Upper Front Teeth Protrusion

Upper front teeth that protrude (stick out) beyond normal contact with the lower front teeth are prone to fracture. In addition, upper protrusion of the front teeth often indicates a poor bite of the back teeth (molars), and may indicate disproportionate upper and lower jaw growth. Commonly, protruded upper front teeth are associated with a lower jaw that is either too short or too small in proportion to the upper jaw. Thumb and finger sucking habits can also cause a protrusion of the upper front teeth.

Deep overbite

This occurs when the upper front teeth (incisors) overlap too far over the lower teeth. In some cases, the biting edges of the upper teeth touch the lower front gum tissue and the lower front teeth may bite into the roof of the mouth.


A crossbite of the front teeth is commonly referred to as an underbite if the lower teeth are ahead of the upper teeth.

Open bite

If your upper and lower front teeth don't meet when you bite down, this is called an open bite. Because the front teeth don't share equally in the biting force, the back teeth may receive too much pressure. This makes chewing less efficient. It can lead to premature wear of the back teeth.

Spacing problems

Some people have missing teeth or unusually small teeth in a normal sized jaw. This can result in large spaces between the teeth. People who have lost one or multiple teeth may have uneven spacing because adjacent teeth may drift into the unoccupied areas.

Dental Midline Position

When dental midlines don't match, the back bite will not fit and match correctly. This could have a negative impact on the jaw and proper dental function.