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Three-dimensional computed tomography analysis of mandibular morphology in patients with facial asymmetry and mandibular retrognathism.

Abstract The purpose of this study was to analyze the morphologic features of skeletal units in the mandibles of patients with facial asymmetry and mandibular retrognathism using cone-beam computed tomography.
PMID
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Three-dimensional computed tomography analysis of mandibular morphology in patients with facial asymmetry and mandibular prognathism.

Authors

Mayor MeshTerms

Cone-Beam Computed Tomography

Imaging, Three-Dimensional

Keywords
Journal Title american journal of orthodontics and dentofacial orthopedics : official publication of the american association of orthodontists, its constituent societies, and the american board of orthodontics
Publication Year Start




 
PMID- 29706216
OWN - NLM
STAT- MEDLINE
DCOM- 20180510
LR  - 20180510
IS  - 1097-6752 (Electronic)
IS  - 0889-5406 (Linking)
VI  - 153
IP  - 5
DP  - 2018 May
TI  - Three-dimensional computed tomography analysis of mandibular morphology in
      patients with facial asymmetry and mandibular retrognathism.
PG  - 685-691
LID - S0889-5406(18)30059-3 [pii]
LID - 10.1016/j.ajodo.2017.08.024 [doi]
AB  - INTRODUCTION: The purpose of this study was to analyze the morphologic features
      of skeletal units in the mandibles of patients with facial asymmetry and
      mandibular retrognathism using cone-beam computed tomography. METHODS: The
      subjects consisted of 50 adults with facial asymmetry and mandibular
      retrognathism, divided into the symmetry group (n = 25) and the asymmetry group
      (n = 25) according to the degree of menton deviation. Three-dimensional computed 
      tomography scans were obtained with cone beam computed tomography. Landmarks were
      designated on the reconstructed 3-dimensional images. Linear and volumetric
      measurements were made on the mandibles. RESULTS: In the asymmetry group, the
      lengths of condylar, body, and coronoid units were shorter, and condylar width
      was narrower on the deviated side than on the nondeviated side (P <0.01). The
      lengths of angular and chin units were not significantly different between the
      deviated and nondeviated sides (P >0.05). Hemimandibular, ramal, and body volumes
      were less on the deviated side than on the nondeviated side (P <0.01).
      CONCLUSIONS: Condylar, body, and coronoid units contribute to mandibular
      asymmetry in patients with facial asymmetry and mandibular retrognathism.
CI  - Copyright (c) 2018 American Association of Orthodontists. Published by Elsevier
      Inc. All rights reserved.
FAU - You, Kug-Ho
AU  - You KH
AD  - Department of Orthodontics, College of Dentistry, Yonsei University, Seoul,
      Korea.
FAU - Kim, Kyung-Ho
AU  - Kim KH
AD  - Department of Orthodontics, College of Dentistry, Yonsei University, Seoul,
      Korea.
FAU - Lee, Kee-Joon
AU  - Lee KJ
AD  - Department of Orthodontics, College of Dentistry, Yonsei University, Seoul,
      Korea.
FAU - Baik, Hyoung-Seon
AU  - Baik HS
AD  - Department of Orthodontics, College of Dentistry, Yonsei University, Seoul,
      Korea. Electronic address: [email protected]
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Am J Orthod Dentofacial Orthop
JT  - American journal of orthodontics and dentofacial orthopedics : official
      publication of the American Association of Orthodontists, its constituent
      societies, and the American Board of Orthodontics
JID - 8610224
SB  - D
SB  - IM
MH  - Adult
MH  - *Cone-Beam Computed Tomography
MH  - Facial Asymmetry/*diagnostic imaging
MH  - Female
MH  - Humans
MH  - *Imaging, Three-Dimensional
MH  - Male
MH  - Retrognathia/*diagnostic imaging
MH  - Young Adult
EDAT- 2018/05/01 06:00
MHDA- 2018/05/11 06:00
CRDT- 2018/05/01 06:00
PHST- 2017/02/01 00:00 [received]
PHST- 2017/08/01 00:00 [revised]
PHST- 2017/08/01 00:00 [accepted]
PHST- 2018/05/01 06:00 [entrez]
PHST- 2018/05/01 06:00 [pubmed]
PHST- 2018/05/11 06:00 [medline]
AID - S0889-5406(18)30059-3 [pii]
AID - 10.1016/j.ajodo.2017.08.024 [doi]
PST - ppublish
SO  - Am J Orthod Dentofacial Orthop. 2018 May;153(5):685-691. doi:
      10.1016/j.ajodo.2017.08.024.