Final answer:
Angle Class II Division 1 is a classification system used in dentistry to assess the relationship between the upper and lower teeth, particularly in cases of malocclusion or misalignment.
Step-by-step explanation:
Angle Class II Division 1 is a classification system used in dentistry to assess the relationship between the upper and lower teeth, particularly in cases of malocclusion or misalignment. It is part of the Angle classification system, which categorizes different types of malocclusion.
Class II Division 1 refers specifically to a condition where the upper front teeth protrude forward and partially cover the lower front teeth. This type of malocclusion is characterized by an increased overjet, which is the horizontal distance between the upper and lower incisors.
For example, if the upper front teeth are significantly ahead of the lower front teeth, creating an overjet of 6mm or more, it would be classified as Angle Class II Division 1.