دورية أكاديمية
أعرض في EDS

Immediate changes in condylar position after rapid maxillary expansion.

التفاصيل البيبلوغرافية
العنوان: Immediate changes in condylar position after rapid maxillary expansion.
المؤلفون: Melgaço CA; Postgraduate student, Department of Orthodontics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil., Columbano Neto J; Postgraduate student, Department of Orthodontics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil., Jurach EM; Postgraduate student, Department of Orthodontics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil., Nojima Mda C; Professor, Department of Orthodontics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil., Nojima LI; Orienting professor, Department of Orthodontics, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil. Electronic address: linojima@gmail.com.
المصدر: American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics [Am J Orthod Dentofacial Orthop] 2014 Jun; Vol. 145 (6), pp. 771-9.
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: Elsevier Country of Publication: United States NLM ID: 8610224 Publication Model: Print Cited Medium: Internet ISSN: 1097-6752 (Electronic) Linking ISSN: 08895406 NLM ISO Abbreviation: Am J Orthod Dentofacial Orthop Subsets: MEDLINE
أسماء مطبوعة: Publication: St. Louis : Elsevier
Original Publication: [St. Louis, Mo.] : C.V. Mosby, [c1986-
مواضيع طبية MeSH: Palatal Expansion Technique*/instrumentation, Malocclusion, Angle Class I/*therapy , Mandibular Condyle/*pathology, Adolescent ; Anatomic Landmarks/pathology ; Cephalometry/methods ; Child ; Cone-Beam Computed Tomography/methods ; Female ; Humans ; Male ; Malocclusion, Angle Class I/pathology ; Orthodontic Appliance Design
مستخلص: Introduction: Although the dentoalveolar and skeletal effects of rapid maxillary expansion are well documented, the condylar response to this procedure is not well understood. The purpose of this study was to test the following null hypothesis: rapid maxillary expansion promotes immediate changes of the position of the condyles in patients with Class I malocclusion.
Methods: Thirty-four subjects with Class I malocclusion underwent rapid maxillary expansion. Cone-beam computed tomography images were collected before activation of the expander and 3 weeks later, after screw stabilization. Using specific software functions, it was possible to determine and reproduce head positioning and landmarks during the different times of the study.
Results: The axial, coronal, and sagittal planes were examined, and no asymmetries in condylar positions were found at either time. However, statistically significant anterior and inferior displacements of these structures occurred, with respective average values of 0.52 and 0.49 mm. Lateral inclinations of both condyles were observed and confirmed by the coronal condylar angles.
Conclusions: The null hypothesis was rejected. Statistically significant anterior and inferior displacements of the condyles occurred. Lateral inclination of the condyles was observed.
(Copyright © 2014 American Association of Orthodontists. Published by Mosby, Inc. All rights reserved.)
التعليقات: Comment in: Am J Orthod Dentofacial Orthop. 2015 Jul;148(1):9-10. (PMID: 26124019)
Comment in: Am J Orthod Dentofacial Orthop. 2015 Jul;148(1):10. (PMID: 26124020)
تواريخ الأحداث: Date Created: 20140602 Date Completed: 20140718 Latest Revision: 20220317
رمز التحديث: 20221213
DOI: 10.1016/j.ajodo.2014.01.024
PMID: 24880848
قاعدة البيانات: MEDLINE
الوصف
تدمد:1097-6752
DOI:10.1016/j.ajodo.2014.01.024