Document Detail


Severe root resorption in orthodontic patients treated with the edgewise method: prevalence and predictive factors.
MedLine Citation:
PMID:  20197177     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
INTRODUCTION: Our aims in this study were to assess the prevalence of severe root resorption and identify possible associations in orthodontic patients treated with the edgewise method. METHODS: The sample included 1049 patients who had periapical radiographs taken for all incisors before and after treatment. The radiographs were examined by 2 orthodontists using an x-ray viewer with standard light intensity. These variables were collected: root shape, overbite, initial resorption, and hypodontia. The patients were classified according to sex, Angle classification, ethnicity, age, duration of treatment, type of dentition (mixed or permanent), and treatment with or without extraction of 4 premolars. Resorption was considered severe when it affected more than a third of the length of the root. Statistical analysis included the chi-square test and both simple and multiple logistic regression (P < or =0.05). RESULTS: Severe root resorption was observed in 14.5% of the sample. Patients treated with exodontia of the first premolars (odds ratio [95% CI] = 6.38 [4.2-9.7]), those who had triangle-shaped roots at the beginning of treatment (odds ratio [95% CI] = 4.67 [3.1-6.9]), and those with initial root resorption (odds ratio [95% CI] = 4.52 [2.7-7.6]) had a greater chance of developing severe root resorption during orthodontic treatment. CONCLUSIONS: A high prevalence of severe root resorption was observed in Brazilian patients treated with the edgewise method. The main factors directly involved in severe resorption were extraction of first premolars, triangle-shaped roots, and root resorption before treatment.
Authors:
Leandro Silva Marques; Maria Letícia Ramos-Jorge; Ana Cristina Rey; Mônica Costa Armond; Antônio Carlos de Oliveira Ruellas
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Publication Detail:
Type:  Journal Article    
Journal Detail:
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     Volume:  137     ISSN:  1097-6752     ISO Abbreviation:  Am J Orthod Dentofacial Orthop     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-03-03     Completed Date:  2010-03-22     Revised Date:  2010-08-13    
Medline Journal Info:
Nlm Unique ID:  8610224     Medline TA:  Am J Orthod Dentofacial Orthop     Country:  United States    
Other Details:
Languages:  eng     Pagination:  384-8     Citation Subset:  D; IM    
Copyright Information:
2010 American Association of Orthodontists. Published by Mosby, Inc. All rights reserved.
Affiliation:
Department of Orthodontics, University of Vale do Rio Verde, Três Corações, Brazil. lsmarques.prof@gmail.com
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MeSH Terms
Descriptor/Qualifier:
Brazil
Child
Female
Humans
Logistic Models
Male
Malocclusion / therapy
Orthodontic Appliances / adverse effects*
Orthodontics, Corrective / adverse effects*,  instrumentation
Prognosis
Retrospective Studies
Risk Factors
Root Resorption / etiology*,  pathology
Tooth Extraction / adverse effects
Tooth Root / pathology
Comments/Corrections
Comment In:
Am J Orthod Dentofacial Orthop. 2010 Jun;137(6):724-5; author reply 725   [PMID:  20685513 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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