Format

Send to

Choose Destination
Angle Orthod. 2014 Sep;84(5):788-94. doi: 10.2319/092313-699.1. Epub 2014 Feb 21.

Three-dimensional evaluation of the relationship between jaw divergence and facial soft tissue dimensions.

Author information

1
a  PhD Student, Department of Neuroscience, Reproductive Science and Oral Science, University of Naples "Federico II,", Naples, Italy.

Abstract

OBJECTIVE:

To evaluate the relationship between mandibular divergence and vertical and transverse dimensions of the face.

MATERIALS AND METHODS:

A sample was recruited from the orthodontic clinic of the University of Otago, New Zealand. The recruited participants (N  =  60) were assigned to three different groups based on the mandibular plane angle (hyperdivergent, n  =  20; normodivergent, n  =  20; and hypodivergent, n  =  20). The sample consisted of 31 females and 29 males, with a mean age of 21.1 years (SD ± 5.0). Facial scans were recorded for each participant using a three-dimensional (3D) white-light scanner and then merged to form a single 3D image of the face. Vertical and transverse measurements of the face were assessed from the 3D facial image.

RESULTS:

The hyperdivergent sample had a significantly larger total and lower anterior facial height than the other two groups (P < .05), although no difference was found for the middle facial height (P > .05). Similarly, there were no significant differences in the transverse measurements of the three study groups (P > .05). Both gender and body mass index (BMI) had a greater influence on the transverse dimension.

CONCLUSIONS:

Hyperdivergent facial types are associated with a long face but not necessarily a narrow face. Variations in facial soft tissue vertical and transversal dimensions are more likely to be due to gender. Body mass index has a role in mandibular width (GoGo) assessment.

KEYWORDS:

Craniofacial morphology; Jaw divergence; Soft tissue analysis; White-light scanner

PMID:
24559507
DOI:
10.2319/092313-699.1
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Allen Press, Inc.
Loading ...
Support Center