What is considered "ideal occlusion" in a Class I Division I malocclusion?

In the context of orthodontics and dental occlusion, "ideal occlusion" in a Class I Division I malocclusion is characterized by specific measurements of overjet and overbite. A Class I Division I malocclusion indicates that the first molars are in proper occlusion (the mesiobuccal cusp of the maxillary first molar aligns with the buccal groove of the mandibular first molar), but the teeth may be crowded, protruded, or have other alignment issues.

The ideal occlusion in this classification typically features an overjet measurement of 2-4mm, which is considered normal and aligns with the natural relationship between the upper and lower incisors. Additionally, an overbite of around 50% is desirable. This level of overbite indicates that the upper incisors cover approximately half of the vertical height of the lower incisors, which is conducive to proper function and aesthetics.

This combination of overjet and overbite ensures that there is a functional dental relationship that can support effective chewing and is beneficial for long-term oral health. Observing these parameters facilitates proper tooth setup within the dental arch and reflects normal dental function.