What is defined as the horizontal distance between maxillary and mandibular teeth?

The horizontal distance between the maxillary and mandibular teeth is referred to as overjet. This term specifically describes the relationship between the upper front teeth and the lower front teeth, indicating how far the upper teeth project over the lower teeth when biting down. A normal overjet is measured in millimeters and is an important factor in dental occlusion analysis, as it can impact both the function and aesthetics of a person's smile.

Understanding overjet is crucial for dental professionals, as excessive overjet may lead to functional issues and might warrant orthodontic intervention. By focusing on this specific aspect of dental occlusion, practitioners can better assess treatment options for aligning the teeth and improving oral health.