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Factors associated with the success rate of orthodontic miniscrews placed in the upper and lower posterior buccal region

Cited 127 time in Web of Science Cited 150 time in Scopus
Authors

Moon, Cheol-Hyun; Lee, Dong-Gun; Lee, Hyun-Sun; Im, Jeong-Soo; Baek, Seung-Hak

Issue Date
2008
Publisher
E.H Angle Education and Research Foundation
Citation
Angle Orthodontist, Vol.78, No.1, pp.101-106
Keywords
MiniscrewPlacement siteSuccess rate
Abstract
Objective: To determine the success rate and the factors related to the success rate of orthodontic miniscrew implants (OMI) placed at the attached gingiva of the posterior buccal region. Materials and Methods: Four hundred eighty OMI placed in 209 orthodontic patients were examined retroactively. The sample was divided into young patients (range 10-18 years, N = 108) and adult patients (range 19-64 years, N = 109). The placement site was divided into three interdental areas from the first premolar to the second molar in the maxilla and mandible. According to soft tissue management, the samples were divided into incision and nonincision groups. Chi-square tests and multiple logistic regression analyses were used. Results: The overall success rate was 83.8%. Dislodgement of the OMI occurred most frequently in the first 1-2 months, and more than 90% of the failures occurred within the first 4 months. Sex, age, jaw, soft tissue management, and placement side did not show any difference in the success rate. Placement site, however, showed a significant difference in the mandible of adult patients. There was no difference in the success rate in the maxilla. Conclusions: Placement site is one of the important factors for success rate of OMI. (c) 2008 by The EH Angle Education and Research Foundation, Inc.
ISSN
0003-3219
Language
English
URI
https://hdl.handle.net/10371/80915
DOI
https://doi.org/10.2319/121706-515.1
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