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Development of a novel bioactive glass for air-abrasion to selectively remove orthodontic adhesives.
|dc.description.abstract||OBJECTIVES: To develop a novel, bioactive glass for removing residual orthodontic adhesive via air-abrasion, following bracket debonding, and to evaluate its effectiveness against a proprietary bioactive glass 45S5(Sylc™)-air-abrasion, and a slow-speed tungsten carbide (TC) bur. MATERIALS AND METHODS: Three glasses were prepared and their bioactivity was proved. One novel glass (QMAT3) was selected due to its appropriate hardness, lower than that of enamel/45S5(Sylc™). Sixty extracted human premolars were randomly assigned to adhesive removal using: (a) QMAT3-air-abrasion, (b) 45S5(Sylc™)-air-abrasion, and (c) TC bur, which were further subdivided (n = 10) based on the adhesive used (Transbond XT™ or Fuji Ortho LC™). Enamel roughness was assessed using scanning electron microscopy (SEM) and non-contact profilometry before bracket bonding, after removing residual adhesive following bracket debonding and after polishing. RESULTS: QMAT3 formed apatite faster (6 h) than 45S5(Sylc™) (24 h) in Tris solution. QMAT3-air-abrasion gave the lowest enamel roughness (Ra) after removing the adhesives. SEM images showed a pitted, roughened enamel surface in the TC bur group and to a lesser extent with 45S5(Sylc™), while a virtually smooth surface without any damage was observed in the QMAT3-air-abrasion group. The time taken for adhesive removal with QMAT3 was comparable to 45S5(Sylc™) but was twice as long with the TC bur. CONCLUSIONS: QMAT3-air-abrasion is a promising technique for selective removal of adhesives without inducing tangible enamel damage. CLINICAL RELEVANCE: A novel bioactive glass has been developed as an alternative to the use of TC burs for orthodontic adhesive removal.|
|dc.relation.ispartof||Clin Oral Investig|
|dc.rights||This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.|
|dc.subject||Orthodontic adhesive removal|
|dc.title||Development of a novel bioactive glass for air-abrasion to selectively remove orthodontic adhesives.|
|dc.rights.holder||© The Author(s) 2017|
|pubs.organisational-group||/Queen Mary University of London|
|pubs.organisational-group||/Queen Mary University of London/Faculty of Medicine & Dentistry|
|pubs.organisational-group||/Queen Mary University of London/Faculty of Medicine & Dentistry/Institute of Dentistry|
|pubs.organisational-group||/Queen Mary University of London/Faculty of Medicine & Dentistry/Institute of Dentistry/Institute of Dentistry - Research Students|
|pubs.organisational-group||/Queen Mary University of London/Faculty of Medicine & Dentistry/Institute of Dentistry/Oral Growth & Development|
|pubs.organisational-group||/Queen Mary University of London/Faculty Reporting - Research Students|
|pubs.organisational-group||/Queen Mary University of London/Faculty Reporting - Research Students/Faculty of Medicine & Dentistry PGRs|
|pubs.organisational-group||/Queen Mary University of London/Impact Leads|
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