Which measurement describes ideal occlusion as Angle's class 1 during orthodontic assessment?

The measurement that describes ideal occlusion as Angle's Class 1 during orthodontic assessment is characterized by an overjet of 2-4 mm and an overbite of 50%. This classification signifies a normal relationship between the upper and lower teeth, where the upper first molar fits neatly over the lower first molar.

In Angle's Class 1 occlusion, not only must the molars occlude correctly, but the dental arches must also demonstrate a functional relationship. The overjet, which is the horizontal distance between the lingual surface of the upper incisors and the facial surface of the lower incisors, typically falls within this 2-4 mm range for ideal occlusion. A 50% overbite, indicating that the upper incisors overlap the lower incisors by about half their height, further aligns with the normal occlusal pattern and functional bite.

Overall, these specific measurements reflect a harmonious dental and skeletal relationship, essential for proper function and aesthetics in orthodontic assessments.