What is the horizontal distance between the upper and lower incisors called during an orthodontic assessment?

The horizontal distance between the upper and lower incisors during an orthodontic assessment is termed overjet. This measurement indicates the relationship between the upper and lower incisors in the horizontal plane, revealing how far the upper teeth are positioned forward compared to the lower teeth. Adequate knowledge of overjet is crucial for diagnosing and planning orthodontic treatment, as it can affect dental function and aesthetics.

Understanding overjet allows orthodontists to evaluate the alignment and positioning of the teeth effectively. A normal overjet is essential for proper bite functionality, and deviations from this norm can lead to issues like bite misalignment or difficulties in chewing.

The other terms relate to different aspects of orthodontics or dental assessments. Anteroposterior measurement typically refers to the depth of the dental arch or is used to assess positioning in a front-to-back orientation. Transverse alignment deals with the positioning of teeth along the width of the dental arch rather than the horizontal distance. Intraoral width generally pertains to the spatial measurements within the oral cavity, focusing on spacing in the arch rather than the relationship between specific teeth.