Related Experiment Video
Updated: Jul 16, 2026
Quantitative Assessment Protocol for Facial Soft Tissue Volumetric Changes with Stereophotogrammetry
Published on: December 9, 2025
[Study of facial soft tissue profile on angle Class II malocclusion with various vertical growth patterns]
Yan-Hong Zhao1, Chun-Ling Wang, Dong-Xu Liu
1Department of Orthodontics, College of Stomatology, Shandong University, Jinan 250012, Shandong Province, China.
Purpose:
To investigate the difference of the facial soft tissue profile on Angle Class II malocclusion with various vertical growth pattern.
Methods:
The samples (n = 84) were divided into three groups (low-angle, medial-angle, high-angle group) based on their SN-MP angle. Their cephalograms were measured and all data were analyzed by SPSS12.0 software.
Results:
There were some regular changes in most facial profile variables while the mandibular plane angle increased: the facial profile convexity and the upper- and lower-lip convexity increased significantly; the depth of anterior lower face decreased from too large to small; the radian of upper- and lower- lip curve changed from too winding to upright.
Conclusion:
Vertical growth patterns make significant differences to soft tissue facial profile on Angle Class II malocclusion.
Related Concept Videos
01:21Tooth Anatomy
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.
01:30Assessment of Airway, Skin Color, and Use of Accessory Muscles
Introduction
The initial evaluation of a patient's respiratory system...