Orthodontic problems divided into three broad categories:
Dental (Teeth): Problems related to teeth position in each jaw bone. Crowded teeth are the most common dental problem where teeth size does not match the size of the jaw bone.
Skeletal (Jaw bones): The jaw bones are not aligned correctly which may lead to big overjet, deep overbite, cross bite or open bite. The position of the teeth might be fine on their individual jaw bones.
Combination: Problems caused by the above two. Generally the teeth are crowded as well as the jaw bones are not matching in proportion.