계명대학교 의학도서관 Repository

Nasal Deviation in Patients With Asymmetric Mandibular Prognathism

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Author(s)
Young-Min ShinSung-Tak LeeKi-Young NamTae-Geon Kwon
Keimyung Author(s)
Shin, Young MinNam, Ki Young
Department
Dept. of Dentistry (치과학)
Journal Title
Journal of Craniofacial Surgery
Issued Date
2017
Volume
28
Issue
7
Abstract
PURPOSE:
This study was aimed to evaluate the nasal deviation in patients with asymmetric mandibular prognathism.

MATERIALS AND METHODS:
Thirty-five patients with skeletal class III malocclusion were included in the study. Significant mandibular asymmetry of >4 mm menton deviation in three-dimensional (3D) reformatted cone beam computed tomography images was defined as asymmetry group (n = 20). Patients without mandibular asymmetry served as control group (n = 15). The mandibular asymmetry was evaluated pre- and postoperatively.

RESULTS:
Nasal tip was significantly shifted to the deviated side of the mandible (short side) in the asymmetry group, as compared to the control group (1.5 ± 0.9 degree, P < 0.01). Alar base angle (ABA) was significantly narrower in nondeviated side (long side) than in the deviated side in asymmetry group. However, control group showed no bilateral difference in ABA. Correction of deviated mandibular prognathism by isolated mandibular surgery resulted in change in the ABA but not the columella base position or nasal asymmetry. ABA on nondeviated side significantly decreased in proportion to the amount of transverse menton movement by surgery (r = -0.560, P < 0.01).

CONCLUSION:
Our results showed that mandibular chin deviation was accompanied by nasal deviation. Isolated mandibular surgery can potentially influence the alar base position on the contralateral side of deviation but not the nasal tip asymmetry. Therefore, clinicians should inform patients preoperatively of the fundamental limitation of mandibular surgery in cases with preexisting nasal asymmetry.
Keimyung Author(s)(Kor)
신영민
남기영
Publisher
School of Medicine (의과대학)
Citation
Young-Min Shin et al. (2017). Nasal Deviation in Patients With Asymmetric Mandibular Prognathism. Journal of Craniofacial Surgery, 28(7), e700–e704. doi: 10.1097/SCS.0000000000003894
Type
Article
ISSN
1049-2275
Source
https://insights.ovid.com/pubmed?pmid=28891902
DOI
10.1097/SCS.0000000000003894
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/41363
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Dentistry (치과학)
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