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Maxillofacial Plastic and Reconstructive Surgery
Published in: Maxillofacial Plastic and Reconstructive Surgery 1/2019

Open Access 01-12-2019 | Surgery | Research

Horizontal change of philtrum after orthognathic surgery in patients with facial asymmetry

Authors: Yewon Joh, Hyun Soo Park, Hoon Joo Yang, Soon Jung Hwang

Published in: Maxillofacial Plastic and Reconstructive Surgery | Issue 1/2019

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Abstract

Background

Soft tissue asymmetry such as lip canting or deviation of the philtrum is an important influencing factor for unbalanced facial appearance. Lip canting could be improved by the correction of the occlusal canting or positional change of the mentum. Although there are many studies about changes of lip canting, however, postoperative changes of philtrum deviation have not been yet reported. In this study, we investigate the positional change of the philtrum after orthognathic surgery and influencing factors.

Methods

Positional change of the philtrum was evaluated in 41 patients with facial asymmetry who underwent bimaxillary surgery, in relation to other anatomical soft tissue landmarks using a frontal clinical photo. The surgical movement of the maxillary and mandibular dental midline and canting were measured in postero-anterior cephalogram before and 1 day after surgery. The same procedure was repeated in patients with more than 1.5 mm perioperative change of the mandibular dental midline after bimaxillary surgery.

Results

Maxillary dental midline shifting and canting correction did not have a significant correlation with lateral movement of the philtrum midline. However, the mandibular shift had a statistically significant correlation with a lateral movement of the philtrum (p < 0.05) as well as other linear parameters and angle values.

Conclusion

The horizontal change of the philtrum is influenced by lateral mandibular movement in patients with facial asymmetry, rather than maxillary lateral movement.
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Metadata
Title
Horizontal change of philtrum after orthognathic surgery in patients with facial asymmetry
Authors
Yewon Joh
Hyun Soo Park
Hoon Joo Yang
Soon Jung Hwang
Publication date
01-12-2019
Publisher
Springer Berlin Heidelberg
Keyword
Surgery
Published in
Maxillofacial Plastic and Reconstructive Surgery / Issue 1/2019
Electronic ISSN: 2288-8586
DOI
https://doi.org/10.1186/s40902-019-0232-2

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