Vertical dimension record: a three dimensional phenomenon. Part II

Area of Science:

• Orthodontics and Dentofacial Orthopedics
• Facial Growth and Development

Background:

• Facial morphology is characterized by vertical (superior-inferior) and sagittal (anterior-posterior) dimensions.
• Understanding the interplay between these dimensions is crucial for diagnosing and treating dentofacial abnormalities.

Purpose of the Study:

• To analyze the relationship between superior-inferior facial height and anterior-posterior midsagittal profile displacement.
• To investigate how changes in one facial dimension influence the other.

Main Methods:

• Measurements of superior-inferior face height.
• Assessment of anterior-posterior displacement in the midsagittal profile.
• Correlation analysis between vertical and sagittal facial measurements.

Main Results:

• Superior-inferior displacement is primarily influenced by lower lip and mandibular structure movement.
• Anterior-posterior displacement is associated with upper lip and tubercle movement.
• A significant correlation exists between vertical facial height and sagittal profile changes, often linked to dental arch alterations.

Conclusions:

• Facial height and profile displacements are interdependent dimensions.
• Changes in vertical dimension can be associated with dental arch contraction or expansion.
• This understanding aids in predicting and managing dentofacial changes.