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Enamel evaluation by scanning electron microscopy after debonding brackets and removal of adhesive remnants

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Enamel evaluation by scanning electron microscopy after debonding brackets and removal of adhesive remnants

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dc.contributor.author Claudino, Dikson es
dc.contributor.author Kuga, Milton Carlos es
dc.contributor.author Belizário, Lauriê es
dc.contributor.author Pereira, Jefferson Ricardo es
dc.date.accessioned 2018-05-23T09:26:19Z
dc.date.available 2018-05-23T09:26:19Z
dc.date.issued 2018 es
dc.identifier.citation Claudino, Dikson ; Kuga, Milton Carlos ; Belizário, Lauriê ; Pereira, Jefferson Ricardo. Enamel evaluation by scanning electron microscopy after debonding brackets and removal of adhesive remnants. En: Journal of Clinical and Experimental Dentistry, 10 3 2018: 248-251 es
dc.identifier.uri http://hdl.handle.net/10550/66356
dc.description.abstract The bonding of accessories in the dental crown during the orthodontic treatment creates microporosities, thus promoting micromechanical retention of the adhesive to the enamel structure. After debonding brackets, at the end of the active orthodontic treatment, a certain amount of adhesive remnants must be mechanically removed from the enamel. The objective of this study was to compare, by means of scanning electron microscopy, three different methods to remove the adhesive remnants after orthodontic bracket removal. An experimental analytical study was conducted on human premolar specimens, extracted within a year or less. The preparation of the enamel was carried out with the application of 35% phosphoric acid and Transbond XT Light Cure Adhesive Primer® adhesive. Edgwise Standart prescription brackets, slot .022 ?(Morelli Orthodontia) were glued to the enamel using Transbond XT® bonding resin. The brackets were placed on the center of the vestibular face of the clinical crown, and a 300-gram pressure was exerted against the surface of the enamel, measured with an orthodontic dynamometer. The brackets were debonded with adhesive removing pliers, and the samples were divided into groups, according to the protocol used for adhesive remnant removal: high-speed multi-laminated drill bit, low-speed multi-laminated drill bit, and low-speed glass fiber. After removal of the adhesive remnants, the samples went through scanning electron microscopy, obtaining electro micrographs with a magnification range of 150 X, 500 X, and 2,000 X. The tested method showed that the best effectiveness for the removal of the adhesive remnants after bracket debonding was the use of a tungsten carbide multi-laminated high speed, followed by the use of a tungsten carbide multi-laminated, low-rotation drill. The use of fiberglass drill alone has proved to be inefficient for clinical use, given the large amounts of adhesive remnants it leaves on the enamel. All methods evaluated in this study proved to be inefficient for total removal of adhesive remnants from the enamel. es
dc.title Enamel evaluation by scanning electron microscopy after debonding brackets and removal of adhesive remnants es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/jced.54553 es
dc.type.hasVersion VoR es_ES

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