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Three-dimensional assessment of condylar surface changes and remodeling after orthognathic surgery

PURPOSE: This study was performed to evaluate condylar surface changes and remodeling after orthognathic surgery using three-dimensional computed tomography (3D CT) imaging, including comparisons between the right and left sides and between the sexes. MATERIALS AND METHODS: Forty patients (20 males...

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Autores principales: Lee, Jung-Hye, Lee, Woo-Jin, Shin, Jae-Myung, Huh, Kyung-Hoe, Yi, Won-Jin, Heo, Min-Suk, Lee, Sam-Sun, Choi, Soon-Chul
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Korean Academy of Oral and Maxillofacial Radiology 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4816768/
https://www.ncbi.nlm.nih.gov/pubmed/27051636
http://dx.doi.org/10.5624/isd.2016.46.1.25
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author Lee, Jung-Hye
Lee, Woo-Jin
Shin, Jae-Myung
Huh, Kyung-Hoe
Yi, Won-Jin
Heo, Min-Suk
Lee, Sam-Sun
Choi, Soon-Chul
author_facet Lee, Jung-Hye
Lee, Woo-Jin
Shin, Jae-Myung
Huh, Kyung-Hoe
Yi, Won-Jin
Heo, Min-Suk
Lee, Sam-Sun
Choi, Soon-Chul
author_sort Lee, Jung-Hye
collection PubMed
description PURPOSE: This study was performed to evaluate condylar surface changes and remodeling after orthognathic surgery using three-dimensional computed tomography (3D CT) imaging, including comparisons between the right and left sides and between the sexes. MATERIALS AND METHODS: Forty patients (20 males and 20 females) who underwent multi-detector CT examinations before and after surgery were selected. Three-dimensional images comprising thousands of points on the condylar surface were obtained before and after surgery. For the quantitative assessment of condylar surface changes, point-to-point (preoperative-to-postoperative) distances were calculated using D processing software. These point-to-point distances were converted to a color map. In order to evaluate the types of condylar remodeling, the condylar head was divided into six areas (anteromedial, anteromiddle, anterolateral, posteromedial, posteromiddle, and posterolateral areas) and each area was classified into three types of condylar remodeling (bone formation, no change, and bone resorption) based on the color map. Additionally, comparative analyses were performed between the right and left sides and according to sex. RESULTS: The mean of the average point-to-point distances on condylar surface was 0.11±0.03 mm. Bone resorption occurred more frequently than other types of condylar remodeling, especially in the lateral areas. However, bone formation in the anteromedial area was particularly prominent. No significant difference was found between the right and left condyles, but condylar surface changes in males were significantly larger than in females. CONCLUSION: This study revealed that condylar remodeling exhibited a tendency towards bone resorption, especially in the lateral areas. Condylar surface changes occurred, but were small.
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spelling pubmed-48167682016-04-05 Three-dimensional assessment of condylar surface changes and remodeling after orthognathic surgery Lee, Jung-Hye Lee, Woo-Jin Shin, Jae-Myung Huh, Kyung-Hoe Yi, Won-Jin Heo, Min-Suk Lee, Sam-Sun Choi, Soon-Chul Imaging Sci Dent Original Article PURPOSE: This study was performed to evaluate condylar surface changes and remodeling after orthognathic surgery using three-dimensional computed tomography (3D CT) imaging, including comparisons between the right and left sides and between the sexes. MATERIALS AND METHODS: Forty patients (20 males and 20 females) who underwent multi-detector CT examinations before and after surgery were selected. Three-dimensional images comprising thousands of points on the condylar surface were obtained before and after surgery. For the quantitative assessment of condylar surface changes, point-to-point (preoperative-to-postoperative) distances were calculated using D processing software. These point-to-point distances were converted to a color map. In order to evaluate the types of condylar remodeling, the condylar head was divided into six areas (anteromedial, anteromiddle, anterolateral, posteromedial, posteromiddle, and posterolateral areas) and each area was classified into three types of condylar remodeling (bone formation, no change, and bone resorption) based on the color map. Additionally, comparative analyses were performed between the right and left sides and according to sex. RESULTS: The mean of the average point-to-point distances on condylar surface was 0.11±0.03 mm. Bone resorption occurred more frequently than other types of condylar remodeling, especially in the lateral areas. However, bone formation in the anteromedial area was particularly prominent. No significant difference was found between the right and left condyles, but condylar surface changes in males were significantly larger than in females. CONCLUSION: This study revealed that condylar remodeling exhibited a tendency towards bone resorption, especially in the lateral areas. Condylar surface changes occurred, but were small. Korean Academy of Oral and Maxillofacial Radiology 2016-03 2016-03-24 /pmc/articles/PMC4816768/ /pubmed/27051636 http://dx.doi.org/10.5624/isd.2016.46.1.25 Text en Copyright © 2016 by Korean Academy of Oral and Maxillofacial Radiology http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Lee, Jung-Hye
Lee, Woo-Jin
Shin, Jae-Myung
Huh, Kyung-Hoe
Yi, Won-Jin
Heo, Min-Suk
Lee, Sam-Sun
Choi, Soon-Chul
Three-dimensional assessment of condylar surface changes and remodeling after orthognathic surgery
title Three-dimensional assessment of condylar surface changes and remodeling after orthognathic surgery
title_full Three-dimensional assessment of condylar surface changes and remodeling after orthognathic surgery
title_fullStr Three-dimensional assessment of condylar surface changes and remodeling after orthognathic surgery
title_full_unstemmed Three-dimensional assessment of condylar surface changes and remodeling after orthognathic surgery
title_short Three-dimensional assessment of condylar surface changes and remodeling after orthognathic surgery
title_sort three-dimensional assessment of condylar surface changes and remodeling after orthognathic surgery
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4816768/
https://www.ncbi.nlm.nih.gov/pubmed/27051636
http://dx.doi.org/10.5624/isd.2016.46.1.25
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