Description
Class II malocclusion
“The relative mesio-distal relations of the jaws and dental arches are abnormal, where the mandibular teeth occlude the maxillary teeth distal to its normal position.”
– Angle 1900
There are two divisions:
![](https://i0.wp.com/theorthoguide.org/wp-content/uploads/2021/01/Class-II-div-1-1.jpg?resize=512%2C395&ssl=1)
The upper arch is usually narrow. It can be accompanied with a lower lip trap and airway compromise.
![](https://i0.wp.com/theorthoguide.org/wp-content/uploads/2021/01/Class-II-div-2-1.jpg?resize=512%2C416&ssl=1)
The upper arch is usually normal or broad in width. There is usually hyperactive lip muscles and normal airways.