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Success Rate and Risk Factors Associated with Mini-Implants Reinstalled in the Maxilla.
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Baek, Seung-Hak | - |
dc.contributor.author | Kim, Bo-Mi | - |
dc.contributor.author | Kyung, Seung-Hyun | - |
dc.contributor.author | Lim, Joong Ki | - |
dc.contributor.author | Kim, Young Ho | - |
dc.date.accessioned | 2010-09-02T07:23:38Z | - |
dc.date.available | 2010-09-02T07:23:38Z | - |
dc.date.issued | 2008-09 | - |
dc.identifier.citation | Angle Orthodontist 2008;78:895-901 | en |
dc.identifier.issn | 0003-3219 | - |
dc.identifier.uri | https://hdl.handle.net/10371/69591 | - |
dc.description.abstract | Objective: To determine the difference in the success rate for two types of oral installed mini-implants (OMIs): one type of initially installed OMI and a new implant of the same type that is reinstalled.
Materials and Methods: The subjects consisted of 58 patients (19 male, 39 female; mean age = 21.78 ± 5.85 years) who had received at least one OMI (self-drilling type, conical shape with 2.0-mm upper diameter and 5-mm length) in the attached gingiva of the upper buccal posterior regions for maximum anchorage during en masse retraction. If an OMI failed, a new one was immediately installed in the same area after 4 to 6 weeks or in an adjacent area immediately. The total number of initially installed OMIs (II-OMI) was 109 and the total number of reinstalled OMIs (RI-OMI) was 34. Statistical analysis was performed using χ2 test, Kaplan-Meier method, log-rank test, and Cox proportional hazards regression model. Results: The success rate and mean duration were 75.2% and 10.0 months, respectively, for II-OMI and 66.7% and 6.4 months, respectively, for RI-OMI. Age, vertical skeletal pattern, and site and side of implantation were not related to the success rates of II-OMI and RI-OMI. Log-rank test showed that II-OMI in males and Class III malocclusions were more prone to failure. The relative risk of II-OMI failure in Class III malocclusions as opposed to Class I malocclusions was 5.36 (95% confidence interval, 2.008 to 14.31, P = .001). Conclusion: The success rate of the II-OMI was not statistically different from that of the RI-OMI. Sex and ANB angle might be more important factors for better II-OMI results. | en |
dc.language.iso | en | en |
dc.publisher | Angle Orthodontist / E.H Angle Education and Research Foundation | en |
dc.subject | Success rate | en |
dc.subject | Risk factor | en |
dc.subject | Orthodontic mini-implant | en |
dc.subject | Reinstallation | en |
dc.title | Success Rate and Risk Factors Associated with Mini-Implants Reinstalled in the Maxilla. | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 백승학 | - |
dc.contributor.AlternativeAuthor | 김보미 | - |
dc.contributor.AlternativeAuthor | 경승현 | - |
dc.contributor.AlternativeAuthor | 임종기 | - |
dc.contributor.AlternativeAuthor | 김영호 | - |
dc.identifier.doi | 10.2319/091207-430.1 | - |
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