distoclusion

The skeletal malocclusion Class I also known as neutrocllusion occurs when the maxilla and mandible are in harmony with each other, Class II which is also known as distoocclusion occurs when the mandible is distally positioned in relation to maxilla and is further divided into two sub divisions and Class III which is also known as mesioocclusion occurs when mandible is mesially positioned in relation to maxilla.

Angle Classifications were defined as follows: Angle Class I: neutro-occlusion and neutro-relationship of the jaws; Class II division 1: disto-occlusion and disto-relationship of the jaws, with proclined upper incisors; Class II division 2: distoocclusion and disto-relationship of the jaws, with retroclined upper incisors; and Class III: mesio-occlusion and mesio-relationship of the jaws.