Three-dimensional mapping of cortical bone thickness in subjects with different vertical facial dimensions

Abstract Background The purpose of this study was to determine differences in cortical bone thickness among subjects with different vertical facial dimensions using cone beam computed tomography (CBCT). Methods From 114 pre-treatment CBCT scans, 48 scans were selected to be included in the study. CB...

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Main Authors: Mais Medhat Sadek, Noha Ezat Sabet, Islam Tarek Hassan
Format: Article
Language:English
Published: SpringerOpen 2016-10-01
Series:Progress in Orthodontics
Subjects:
Online Access:http://link.springer.com/article/10.1186/s40510-016-0145-x
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author Mais Medhat Sadek
Noha Ezat Sabet
Islam Tarek Hassan
author_facet Mais Medhat Sadek
Noha Ezat Sabet
Islam Tarek Hassan
author_sort Mais Medhat Sadek
collection DOAJ
description Abstract Background The purpose of this study was to determine differences in cortical bone thickness among subjects with different vertical facial dimensions using cone beam computed tomography (CBCT). Methods From 114 pre-treatment CBCT scans, 48 scans were selected to be included in the study. CBCT-synthesized lateral cephalograms were used to categorize subjects into three groups based on their vertical skeletal pattern. Cortical bone thickness (CBT) at two vertical levels (4 and 7 mm) from the alveolar crest were measured in the entire tooth-bearing region in the maxilla and mandible. Results Significant group differences were detected with high-angle subjects having significantly narrower inter-radicular CBT at some sites as compared to average- and low-angle subjects. Conclusions Inter-radicular cortical bone is thinner in high-angle than in average- or low-angle subjects in few selected sites at the vertical height in which mini-implants are commonly inserted for orthodontic anchorage.
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spelling doaj.art-7d744bda49b3433d92ad4ee214cc1c632022-12-21T19:16:14ZengSpringerOpenProgress in Orthodontics2196-10422016-10-011711710.1186/s40510-016-0145-xThree-dimensional mapping of cortical bone thickness in subjects with different vertical facial dimensionsMais Medhat Sadek0Noha Ezat Sabet1Islam Tarek Hassan2Department of Orthodontics, Ain Shams UniversityDepartment of Orthodontics, Ain Shams UniversityDepartment of Orthodontics, Ain Shams UniversityAbstract Background The purpose of this study was to determine differences in cortical bone thickness among subjects with different vertical facial dimensions using cone beam computed tomography (CBCT). Methods From 114 pre-treatment CBCT scans, 48 scans were selected to be included in the study. CBCT-synthesized lateral cephalograms were used to categorize subjects into three groups based on their vertical skeletal pattern. Cortical bone thickness (CBT) at two vertical levels (4 and 7 mm) from the alveolar crest were measured in the entire tooth-bearing region in the maxilla and mandible. Results Significant group differences were detected with high-angle subjects having significantly narrower inter-radicular CBT at some sites as compared to average- and low-angle subjects. Conclusions Inter-radicular cortical bone is thinner in high-angle than in average- or low-angle subjects in few selected sites at the vertical height in which mini-implants are commonly inserted for orthodontic anchorage.http://link.springer.com/article/10.1186/s40510-016-0145-xCBCTMini-implantsCortical thicknessFacial type
spellingShingle Mais Medhat Sadek
Noha Ezat Sabet
Islam Tarek Hassan
Three-dimensional mapping of cortical bone thickness in subjects with different vertical facial dimensions
Progress in Orthodontics
CBCT
Mini-implants
Cortical thickness
Facial type
title Three-dimensional mapping of cortical bone thickness in subjects with different vertical facial dimensions
title_full Three-dimensional mapping of cortical bone thickness in subjects with different vertical facial dimensions
title_fullStr Three-dimensional mapping of cortical bone thickness in subjects with different vertical facial dimensions
title_full_unstemmed Three-dimensional mapping of cortical bone thickness in subjects with different vertical facial dimensions
title_short Three-dimensional mapping of cortical bone thickness in subjects with different vertical facial dimensions
title_sort three dimensional mapping of cortical bone thickness in subjects with different vertical facial dimensions
topic CBCT
Mini-implants
Cortical thickness
Facial type
url http://link.springer.com/article/10.1186/s40510-016-0145-x
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