Association of orthodontic force system and root resorption: A systematic review.

Abstract

INTRODUCTION:

In this systematic review, we assessed the literature to determine which evidence level supports the association of orthodontic force system and root resorption.

METHODS:

PubMed, Cochrane, and Embase databases were searched with no restrictions on year, publication status, or language. Selection criteria included human studies conducted with fixed orthodontic appliances or aligners, with at least 10 patients and the force system well described.

RESULTS:

A total of 259 articles were retrieved in the initial search. After the review process, 21 full-text articles met the inclusion criteria. Sample sizes ranged from 10 to 73 patients. Most articles were classified as having high evidence levels and low risks of bias.

CONCLUSIONS:

Although a meta-analysis was not performed, from the available literature, it seems that positive correlations exist between increased force levels and increased root resorption, as well as between increased treatment time and increased root resorption. Moreover, a pause in tooth movement seems to be beneficial in reducing root resorption because it allows the resorbed cementum to heal. The absence of a control group, selection criteria of patients, and adequate examinations before and after treatment are the most common methodology flaws.

• Authors: Marina G Roscoe, Josete B C Meira, Paolo M Cattaneo
• Journal: 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) Vol. 147 Issue 5 Pg. 610-26 (May 2015) ISSN: 1097-6752 [Electronic] United States
• PMID: 25919107 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Review, Systematic Review)
• Copyright: Copyright © 2015 American Association of Orthodontists. Published by Elsevier Inc. All rights reserved.

Topics

• Bias
• Biomechanical Phenomena
• Checklist
• Humans
• Orthodontic Appliances
• Root Resorption (etiology)
• Stress, Mechanical