Skeletal and dental changes after rapid maxillary expansion: a computed tomography study.

Ahmed Ghoneima, Ezzat Abdel-Fattah, Francisco Eraso, David Fardo, Katherine Kula, James Hartsfield

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

To investigate the skeletal and dental changes induced by rapid maxillary expansion, using computed tomography (CT) scans and three-dimensional (3-D) reconstructed images. Twenty patients (Mean age: 12.3 +/- 1.9 years) who required rapid maxillary expansion as a part of their comprehensive orthodontic treatment underwent pretreatment (T1) and post-treatment (T2) CT scans. The T2--T1 differences between selected skeletal and dental measurements on the coronal CT and 3-D volumetric images were compared using the Wilcoxon signed ranks test. At T2 the Maxillary alveolar width (4.5 +/- 3.5 mm) was greater than the Maxillary base width (1.7 +/- 0.9 mm). The greatest transverse dental change was in the Intermolar width (6.3 +/- 2.1 mm and 2.7 +/- 1.9 mm at the crown and the apex, respectively). On the 3-D volume, significant increases occurred in the Bicondylar width (1.2 +/- 1.3 mm), Bimaxillo-mandibular width (2.1 +/- 2.3 mm) and the Maxillary width (2.5 +/- 1.6 mm). The greatest change in the dental measurements was in the Maxillary first molar width (6.4 +/- 0.1 mm). The Maxillary central incisor angle decreased significantly (-7.9 +/- 8.4 mm), indicating an increase in the distance between the apices of the central incisors. Volumetric 3-D CT scanning provides a useful method for assessing skeletal and dental changes after rapid maxillary expansion. Although significant increases occurred in most skeletal and dental measures, it appears that dental tipping explains most of the expansion.

Original languageEnglish (US)
Pages (from-to)141-148
Number of pages8
JournalAustralian orthodontic journal
Volume26
Issue number2
StatePublished - Nov 2010
Externally publishedYes

Fingerprint

Palatal Expansion Technique
Tooth
Tomography
Three-Dimensional Imaging
Incisor
Nonparametric Statistics
Orthodontics
Crowns
Therapeutics

ASJC Scopus subject areas

  • Orthodontics

Cite this

Ghoneima, A., Abdel-Fattah, E., Eraso, F., Fardo, D., Kula, K., & Hartsfield, J. (2010). Skeletal and dental changes after rapid maxillary expansion: a computed tomography study. Australian orthodontic journal, 26(2), 141-148.

Skeletal and dental changes after rapid maxillary expansion : a computed tomography study. / Ghoneima, Ahmed; Abdel-Fattah, Ezzat; Eraso, Francisco; Fardo, David; Kula, Katherine; Hartsfield, James.

In: Australian orthodontic journal, Vol. 26, No. 2, 11.2010, p. 141-148.

Research output: Contribution to journalArticle

Ghoneima, A, Abdel-Fattah, E, Eraso, F, Fardo, D, Kula, K & Hartsfield, J 2010, 'Skeletal and dental changes after rapid maxillary expansion: a computed tomography study.', Australian orthodontic journal, vol. 26, no. 2, pp. 141-148.
Ghoneima A, Abdel-Fattah E, Eraso F, Fardo D, Kula K, Hartsfield J. Skeletal and dental changes after rapid maxillary expansion: a computed tomography study. Australian orthodontic journal. 2010 Nov;26(2):141-148.
Ghoneima, Ahmed ; Abdel-Fattah, Ezzat ; Eraso, Francisco ; Fardo, David ; Kula, Katherine ; Hartsfield, James. / Skeletal and dental changes after rapid maxillary expansion : a computed tomography study. In: Australian orthodontic journal. 2010 ; Vol. 26, No. 2. pp. 141-148.
@article{19b5beebd7b144bfb69690a8d984b666,
title = "Skeletal and dental changes after rapid maxillary expansion: a computed tomography study.",
abstract = "To investigate the skeletal and dental changes induced by rapid maxillary expansion, using computed tomography (CT) scans and three-dimensional (3-D) reconstructed images. Twenty patients (Mean age: 12.3 +/- 1.9 years) who required rapid maxillary expansion as a part of their comprehensive orthodontic treatment underwent pretreatment (T1) and post-treatment (T2) CT scans. The T2--T1 differences between selected skeletal and dental measurements on the coronal CT and 3-D volumetric images were compared using the Wilcoxon signed ranks test. At T2 the Maxillary alveolar width (4.5 +/- 3.5 mm) was greater than the Maxillary base width (1.7 +/- 0.9 mm). The greatest transverse dental change was in the Intermolar width (6.3 +/- 2.1 mm and 2.7 +/- 1.9 mm at the crown and the apex, respectively). On the 3-D volume, significant increases occurred in the Bicondylar width (1.2 +/- 1.3 mm), Bimaxillo-mandibular width (2.1 +/- 2.3 mm) and the Maxillary width (2.5 +/- 1.6 mm). The greatest change in the dental measurements was in the Maxillary first molar width (6.4 +/- 0.1 mm). The Maxillary central incisor angle decreased significantly (-7.9 +/- 8.4 mm), indicating an increase in the distance between the apices of the central incisors. Volumetric 3-D CT scanning provides a useful method for assessing skeletal and dental changes after rapid maxillary expansion. Although significant increases occurred in most skeletal and dental measures, it appears that dental tipping explains most of the expansion.",
author = "Ahmed Ghoneima and Ezzat Abdel-Fattah and Francisco Eraso and David Fardo and Katherine Kula and James Hartsfield",
year = "2010",
month = "11",
language = "English (US)",
volume = "26",
pages = "141--148",
journal = "Australian orthodontic journal",
issn = "0587-3908",
publisher = "Australian Society of Orthodontists",
number = "2",

}

TY - JOUR

T1 - Skeletal and dental changes after rapid maxillary expansion

T2 - a computed tomography study.

AU - Ghoneima, Ahmed

AU - Abdel-Fattah, Ezzat

AU - Eraso, Francisco

AU - Fardo, David

AU - Kula, Katherine

AU - Hartsfield, James

PY - 2010/11

Y1 - 2010/11

N2 - To investigate the skeletal and dental changes induced by rapid maxillary expansion, using computed tomography (CT) scans and three-dimensional (3-D) reconstructed images. Twenty patients (Mean age: 12.3 +/- 1.9 years) who required rapid maxillary expansion as a part of their comprehensive orthodontic treatment underwent pretreatment (T1) and post-treatment (T2) CT scans. The T2--T1 differences between selected skeletal and dental measurements on the coronal CT and 3-D volumetric images were compared using the Wilcoxon signed ranks test. At T2 the Maxillary alveolar width (4.5 +/- 3.5 mm) was greater than the Maxillary base width (1.7 +/- 0.9 mm). The greatest transverse dental change was in the Intermolar width (6.3 +/- 2.1 mm and 2.7 +/- 1.9 mm at the crown and the apex, respectively). On the 3-D volume, significant increases occurred in the Bicondylar width (1.2 +/- 1.3 mm), Bimaxillo-mandibular width (2.1 +/- 2.3 mm) and the Maxillary width (2.5 +/- 1.6 mm). The greatest change in the dental measurements was in the Maxillary first molar width (6.4 +/- 0.1 mm). The Maxillary central incisor angle decreased significantly (-7.9 +/- 8.4 mm), indicating an increase in the distance between the apices of the central incisors. Volumetric 3-D CT scanning provides a useful method for assessing skeletal and dental changes after rapid maxillary expansion. Although significant increases occurred in most skeletal and dental measures, it appears that dental tipping explains most of the expansion.

AB - To investigate the skeletal and dental changes induced by rapid maxillary expansion, using computed tomography (CT) scans and three-dimensional (3-D) reconstructed images. Twenty patients (Mean age: 12.3 +/- 1.9 years) who required rapid maxillary expansion as a part of their comprehensive orthodontic treatment underwent pretreatment (T1) and post-treatment (T2) CT scans. The T2--T1 differences between selected skeletal and dental measurements on the coronal CT and 3-D volumetric images were compared using the Wilcoxon signed ranks test. At T2 the Maxillary alveolar width (4.5 +/- 3.5 mm) was greater than the Maxillary base width (1.7 +/- 0.9 mm). The greatest transverse dental change was in the Intermolar width (6.3 +/- 2.1 mm and 2.7 +/- 1.9 mm at the crown and the apex, respectively). On the 3-D volume, significant increases occurred in the Bicondylar width (1.2 +/- 1.3 mm), Bimaxillo-mandibular width (2.1 +/- 2.3 mm) and the Maxillary width (2.5 +/- 1.6 mm). The greatest change in the dental measurements was in the Maxillary first molar width (6.4 +/- 0.1 mm). The Maxillary central incisor angle decreased significantly (-7.9 +/- 8.4 mm), indicating an increase in the distance between the apices of the central incisors. Volumetric 3-D CT scanning provides a useful method for assessing skeletal and dental changes after rapid maxillary expansion. Although significant increases occurred in most skeletal and dental measures, it appears that dental tipping explains most of the expansion.

UR - http://www.scopus.com/inward/record.url?scp=79952277533&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79952277533&partnerID=8YFLogxK

M3 - Article

C2 - 21175023

AN - SCOPUS:79952277533

VL - 26

SP - 141

EP - 148

JO - Australian orthodontic journal

JF - Australian orthodontic journal

SN - 0587-3908

IS - 2

ER -