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The effect of combining laser and nanohydroxy-apatite on the surface properties of enamel with initial defects

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The effect of combining laser and nanohydroxy-apatite on the surface properties of enamel with initial defects

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dc.contributor.author El Assal, Dina-Wahied es
dc.contributor.author Saafan, Ali-Mohamed es
dc.contributor.author Mostafa, Dina es
dc.contributor.author Al-Sayed, Marwa-Adel es
dc.date.accessioned 2018-06-11T09:29:17Z
dc.date.available 2018-06-11T09:29:17Z
dc.date.issued 2018 es
dc.identifier.citation El Assal, Dina-Wahied ; Saafan, Ali-Mohamed ; Mostafa, Dina ; Al-Sayed, Marwa-Adel. The effect of combining laser and nanohydroxy-apatite on the surface properties of enamel with initial defects. En: Journal of Clinical and Experimental Dentistry, 10 5 2018: 425-430 es
dc.identifier.uri http://hdl.handle.net/10550/66559
dc.description.abstract The aim of this study was to evaluate the effect of combining fractional CO2 LASER and nanohydroxy apatite on surface microhardness and color of enamel with initial defects. Two types of nano hydroxylapatite (nHAP) was prepared; Pure hydroxyapatite (nHA) and Fluoro hydroxyapatite (nFHA), Sixty extracted premolar teeth without visible caries or structural defects on enamel surface were used, immersed in 10 ml of a demineralizing solution for 2 weeks to create artificial white spot lesions, they were randomly allocated into two groups; Group 1: nHA, Group 2: nFHA, each group is then subdivided into 2 subgroups (A and B) where two different in vitroremineralization procedures have been performed, the first procedure utilizes a 10?wt% nHA aqueous slurries only, the second was first exposed to irradiation from a fractional CO2 laser then (nHAP) was applied. Microhardness and color were measured using a micro-Vickers hardness tester and spectrophotometer respectively. Laser treated teeth in both groups showed the highest mean hardness and lowest color difference where ?E was less than 3.3 units, in both tests the pure type of nanohydroxyapatite gave better results than the nanofluroapatite type. Nano-hydroxyapatite has remarkable remineralizing effects on initial lesions of enamel, certainly higher when combined with laser application. es
dc.title The effect of combining laser and nanohydroxy-apatite on the surface properties of enamel with initial defects es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/jced.54371 es
dc.type.hasVersion VoR es_ES

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