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Bonded molar tubes: a retrospective evaluation of clinical performance

Millett, D.T., Hallgren, A., Fornell, A.C., and Robertson, M. (1999) Bonded molar tubes: a retrospective evaluation of clinical performance. American Journal of Orthodontics and Dentofacial Orthopedics, 115 (6). pp. 667-674. ISSN 0889-5406

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Publisher's URL: http://www.ajodo.org/article/PIIS0889540699702933/fulltext

Abstract

This study investigated time to first failure of stainless steel orthodontic first permanent molar tubes (Ormco Corp) bonded with a light-cured resin adhesive (Transbond) and assessed whether this was related to patient gender, age of the patient at the start of treatment, the presenting malocclusion, or the operator. All first molar tubes were bonded to intact buccal enamel, free of any restoration. Survival analysis was carried out on data from 483 patients with 1190 bonded first molar tubes. For each case, a single molar tube, either that which was first to fail or had the shortest follow-up time, was chosen for analysis. The median time until first bonded tube failure was 699 days with an overall failure rate of 21% recorded. There was no significant difference in time to first failure of molar tubes with respect to patient gender or presenting malocclusion but significant differences were recorded with respect to the patients’ age at the start of treatment and the operator. Age at the start of treatment and operator were identified as independently useful predictors of bonded molar tube survival.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s):Robertson, Mrs Michele
Authors: Millett, D.T., Hallgren, A., Fornell, A.C., and Robertson, M.
Subjects:R Medicine > RK Dentistry
College/School:College of Medical Veterinary and Life Sciences > Institute of Health and Wellbeing > Robertson Centre
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Journal Name:American Journal of Orthodontics and Dentofacial Orthopedics
Publisher:Mosby, Inc.
ISSN:0889-5406
ISSN (Online):1097-6752
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