Benson, P.E. orcid.org/0000-0003-0865-962X, Alexander-Abt, J., Cotter, S. et al. (6 more authors) (2019) Resin-modified glass ionomer cement vs composite for orthodontic bonding: A multicenter, single-blind, randomized controlled trial. American Journal of Orthodontics and Dentofacial Orthopedics, 155 (1). pp. 1-18. ISSN 0889-5406
Abstract
Introduction In this study, we aimed to compare the incidence of new demineralized lesions and bond failures between 2 groups of participants wearing fixed orthodontic appliances bonded with either light-cured resin-modified glass ionomer cement or light-cured composite.
Methods This trial was a multicenter (6 centers: 2 teaching hospitals, 4 specialist orthodontic practices), single-blinded, randomized controlled trial with 2 parallel groups. Patients aged 11 years or older, in the permanent dentition, and about to start fixed orthodontic treatment in these 6 centers were randomly allocated to have either resin-modified glass ionomer cement or light-cured composite for bonding brackets, forward of the first molars. Pretreatment and day-of-debond digital photographic images were taken of the teeth and assessed by up to 5 clinical and 3 lay assessors for the presence or absence of new demineralized lesions and the esthetic impact. The assessors were masked as to group allocation.
Results We randomized 210 participants, and 197 completed the trial. There were 173 with complete before-and after-digital images of the teeth. The incidence of new demineralized lesions was 24%; but when the esthetic impact was taken into account, this was considerably lower (9%). There was no statistically significant difference between the bracket adhesives in the numbers with at least 1 new demineralized lesion (risk ratio,1.25; 95% confidence interval, 0.74-2.13; P = 0.403) or first-time bracket failure (risk ratio,0.88; 95% confidence interval, 0.67-1.16; P = 0.35). There were no adverse effects.
Conclusions There is no evidence that the use of resin modified glass ionomer cement over light-cured composite for bonding brackets reduces the incidence of new demineralized lesions or bond failures. There might be other reasons for using resin modified glass ionomer cement.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 by the American Association of Orthodontists. This is an author produced version of a paper subsequently published in American Journal of Orthodontics and Dentofacial Orthopedics. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Medicine, Dentistry and Health (Sheffield) > School of Clinical Dentistry (Sheffield) |
Funding Information: | Funder Grant number SHEFFIELD HOSPITALS CHARITABLE TRUST (SPECIAL TRUSTEES) 7864 - STH14372 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 22 Nov 2018 10:28 |
Last Modified: | 24 Dec 2019 01:38 |
Published Version: | https://doi.org/10.1016/j.ajodo.2018.09.005 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.ajodo.2018.09.005 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:139003 |
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Filename: Benson2019 Bonding RCT Final Accepted Manuscript.pdf
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