Welcome back to malocclusions! Here are the different classifications of occlusions, or bites, and what they mean:

Class I: Neutrocclusion. Here the molar relationship of the bite is normal but the other teeth have problems like spacing, crowding, over or under eruption.

Class II: Distocclusion (retrognathism, overjet). In this situation, the upper molars are placed not in the mesiobuccal groove but anteriorly to it. Usually the mesiobuccal cusp rests in between the first mandibular molars and second premolars. There are two subtypes:
Class II Division 1: The molar relationships are like that of Class II and the anterior teeth are protruded.
Class II Division 2: The molar relationships are class II but the central are retroclined and the lateral teeth are seen overlapping the centrals.

Class III: Mesiocclusion (prognathism, negative overjet). In this case the upper molars are placed not in the mesiobuccal groove but posteriorly to it. The mesiobuccal cusp of the maxillary first molar lies posteriorly to the mesiobuccal groove of the mandibular first molar. Usually seen as when the lower front teeth are more prominent than the upper front teeth. In this case the patient very often has a large mandible or a short maxillary bone.

Orthodontic treatment can fix all of these problems! During a consultation or regular appointment, ask Dr. Miller about your bite and try out your new vocabulary!