What is the average incisal display of the maxillary central incisors of 20-year-old females in repose?

The average incisal display of the maxillary central incisors in 20-year-old females at rest typically falls within the range of 3-4 mm. This measurement is significant as it reflects aesthetic norms and contributes to the overall appearance of the smile.

In repose, the incisal edge of the maxillary central incisors should ideally be visible to ensure a balanced and pleasing smile. The parameters for incisal display are informed by studies on dental aesthetics and are used for designing treatment plans, particularly in cosmetic dentistry and orthodontics.

The measurements outside this range, such as those suggesting less than 3 mm or more than 4 mm, have generally been observed in older populations or in individuals with specific dental health issues, which can lead to variations based on age and other factors. Therefore, the 3-4 mm range is most consistent with the expected findings for young adult females.