Severe misalignments may require extra flossing and brushing. But malocclusion doesn't always cause jaw problems or pain, and many people have lived long and healthy lives with misaligned teeth. Nevertheless, malocclusions can be embarrassing. There are three types of malocclusions, plus a number of other bite problems. Teeth line up correctly top to bottom, but they are spaced too far apart or are crooked, crowded or turned.
Lower teeth are too far in front and the upper teeth are too far back.
This is the most difficult problem to correct, says Singleton, and may require surgery. This can make chewing food difficult or impossible. Causes Bite problems stem from a number of causes. Most are inherited, but others are behavioral. Habits such as a reverse swallow, tongue thrust, or sucking the thumb, fingers or the lower lip can apply pressure to teeth.