Orthodontic Assistant Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

A Class II division 1 malocclusion is characterized by protruded upper incisors combined with a Class II skeletal relationship. This means that the upper teeth are positioned forward relative to the lower teeth, and the upper incisors often protrude significantly. In this type of malocclusion, the bite is set such that the first molars have a Class II relationship, where the lower molar sits behind the upper molar. This specific combination results in the upper incisors being not only positioned in front of the lower incisors but also angled outward, often leading to aesthetic concerns as well as functional challenges in biting and chewing.

The other choices do not accurately represent the conditions of Class II division 1 malocclusion. For example, having retreated upper incisors would suggest a Class II div 2 malocclusion rather than division 1, where the upper teeth typically are retroclined. A Class I relationship describes a normal occlusion, which is not part of Class II malocclusion characterization. Evenly aligned upper and lower incisors would indicate a proper occlusion, deviating from the characteristics of any malocclusion, including Class II. Crowded upper incisors don't specifically define Class II division 1 because crowding can