The effect of an Er,Cr:YSGG laser on external adaptation of healthy and decayed cavities

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorKabbach, William
dc.creatorTonetto, Mateus Rodrigues
dc.creatorFrizzera, Fausto
dc.creatorZezell, Denise Maria
dc.creatorBandeca, Matheus Coelho
dc.creatorCampos, Edson Alves
dc.creatorBorges, Alvaro Henrique
dc.creatorAndrade, Marcelo Ferrarezi
dc.date2014-12-03T13:10:50Z
dc.date2016-10-25T20:11:30Z
dc.date2014-12-03T13:10:50Z
dc.date2016-10-25T20:11:30Z
dc.date2014-05-01
dc.date.accessioned2017-04-06T06:23:48Z
dc.date.available2017-04-06T06:23:48Z
dc.identifierLaser Physics. Bristol: Iop Publishing Ltd, v. 24, n. 5, 5 p., 2014.
dc.identifier1054-660X
dc.identifierhttp://hdl.handle.net/11449/112572
dc.identifierhttp://acervodigital.unesp.br/handle/11449/112572
dc.identifier10.1088/1054-660X/24/5/055602
dc.identifierWOS:000334598300013
dc.identifierhttp://dx.doi.org/10.1088/1054-660X/24/5/055602
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/923333
dc.descriptionThe aim of this study was to evaluate the influence of chlorhexidine and Er, Cr:YSGG laser irradiation on the bond strength and external adaptation in mixed healthy and caries-affected class V cavities before and after thermal cycling. Thirty-six cavity preparations were made in mixed class V buccal human molars, half of them being artificially caries-induced. Any remaining affected dentin was removed from the cavity with a round burr at low speed. The teeth were divided into six groups, according to cleaning agent for both healthy and caries-induced dentin: no treatment, chlorhexidine and erbium, chromium-doped: yttrium, scandium, gallium, garnet (Er,Cr:YSGG) laser irradiation. A Filtek P90 (3M ESPE, St Paul, MN, USA) silorane adhesive restorative system was used. The specimens were subjected to 5000 thermal cycles (5-55 degrees C 60 min). Epoxy replicas were obtained to characterize the external adaptation under scanning electron microscopy. The average percentages of non-continuous margins were 5.41% and 6.49% in enamel dentin before thermal cycling and 25% and 33.7% after thermal cycling, respectively. The caries-affected and laser irradiated cavities showed higher non-continuous margins. Thermal cycling was able to raise the percentage of non-continuous margin for all groups. Chlorhexidine did not affect the marginal adaptation results, and the Er,Cr:YSGG laser irradiation showed significantly worse results compared with the control group.
dc.languageeng
dc.publisherIop Publishing Ltd
dc.relationLaser Physics
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectcomposite resins
dc.subjectchlorhexidine
dc.subjectlaser
dc.subjectdental caries
dc.subjectSEM
dc.titleThe effect of an Er,Cr:YSGG laser on external adaptation of healthy and decayed cavities
dc.typeOtro


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