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dc.contributor.authorTaha, AAen_US
dc.contributor.authorHill, RGen_US
dc.contributor.authorFleming, PSen_US
dc.contributor.authorPatel, MPen_US
dc.description.abstractOBJECTIVES: 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.en_US
dc.format.extent1839 - 1849en_US
dc.relation.ispartofClin Oral Investigen_US
dc.rightsThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, 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.subjectBioactive glassen_US
dc.subjectOrthodontic adhesive removalen_US
dc.subjectAir Abrasion, Dentalen_US
dc.subjectDental Cementsen_US
dc.subjectDental Debondingen_US
dc.subjectIn Vitro Techniquesen_US
dc.subjectMaterials Testingen_US
dc.subjectMicroscopy, Electron, Scanningen_US
dc.subjectSurface Propertiesen_US
dc.titleDevelopment of a novel bioactive glass for air-abrasion to selectively remove orthodontic adhesives.en_US
dc.rights.holder© The Author(s) 2017
pubs.notesNot knownen_US

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