The classification of bites is broken up into three main categories, Class I, II, and III.

Class I

Class I is a normal relationship between the upper teeth, lower teeth, upper jaw and lower jaws or a balanced bite. Class I profile requires no treatment.

Class II

Class II is where the lower first molar is posterior (or more towards the back of the mouth) of the upper first molar. In this abnormal relationship, the upper front teeth and jaw project further forward than the lower teeth and jaw. There is a convex appearance to the profile with a receding chin and lower lip. In many cases, Class II problems may be genetically inherited and can be aggravated by habits such as finger sucking. We treat Class II problems orthopedically with growth redirection to bring the upper teeth and lower jaw into harmony.

Class II

Class III is where the lower first molar is anterior (or more towards the front of the mouth) than the upper first molar. In this abnormal relationship, the lower teeth and jaw project further forward than the upper teeth and jaws. There is a concave appearance in profile with a prominent chin. Class III problems like Class II can be genetically inherited.