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Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites
dc.creator | Miletić, Vesna | |
dc.creator | Jakovljević, Nikola | |
dc.creator | Manojlović, Dragica | |
dc.creator | Marjanović, Jovana | |
dc.creator | Rosić, Aleksandra A. | |
dc.creator | Dramićanin, Miroslav D. | |
dc.date.accessioned | 2020-07-02T13:10:04Z | |
dc.date.available | 2020-07-02T13:10:04Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 1552-4973 | |
dc.identifier.uri | https://smile.stomf.bg.ac.rs/handle/123456789/2199 | |
dc.description.abstract | This study correlated the refractive indices (RIs) of unfilled resin mixtures and resin-based composites (RBCs) with color and translucency of conventional and low-shrinkage RBCs. Unfilled resin mixtures based on different ratios of conventional monomers Bisphenol A-glycidyl-methacrylate (BisGMA)/triethyleneglycol-dimethacrylate (TEGDMA) and urethane-dimethacrylate (UDMA)/TEGDMA and a low-shrinkage monomer FIT-852 (FIT, Esstech Inc.)/TEGDMA were used to prepare model RBCs, containing 30 wt % of the organic matrix and 70 wt % of silanated barium-glass fillers (n=1.553, Esstech Inc.). The RIs of resins were measured on an ABBE refractometer, those of cured RBCs using the Becke-line method in immersion oils. Color and translucency were determined using an AvaSpec-2048 (Avantes BV) spectrometer. The RIs of unfilled resin mixtures decreased with increasing amounts of TEGDMA. Cured RBCs had higher RIs than their respective resin mixtures. BisGMA-based composites were more translucent with significantly lower L* values than FIT- and UDMA-based RBCs. The RIs of unfilled resins positively correlated with cured RBCs (p=0.001), as did the RIs with translucency (p=0.001) and color (p=0.008). Resin mixtures and corresponding RBCs based on UDMA and its modified low-shrinkage version, FIT, showed similar optical properties. The RIs of unfilled resins appeared to be good predictors of the RIs of cured RBCs. | en |
dc.publisher | Wiley-Blackwell, Hoboken | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172007/RS// | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/176016/RS// | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45020/RS// | |
dc.rights | restrictedAccess | |
dc.source | Journal of Biomedical Materials Research Part B: Applied Biomaterials | |
dc.subject | composite | en |
dc.subject | refractive index | en |
dc.subject | color | en |
dc.subject | translucency | en |
dc.subject | low-shrinkage | en |
dc.title | Refractive indices of unfilled resin mixtures and cured composites related to color and translucency of conventional and low-shrinkage composites | en |
dc.type | article | |
dc.rights.license | ARR | |
dcterms.abstract | Марјановић, Јована; Манојловић, Драгица; Јаковљевић, Никола; Росић, Aлександра A.; Драмићанин, Мирослав Д.; Милетић, Весна; | |
dc.citation.volume | 105 | |
dc.citation.issue | 1 | |
dc.citation.spage | 7 | |
dc.citation.epage | 13 | |
dc.citation.other | 105(1): 7-13 | |
dc.citation.rank | M21 | |
dc.identifier.wos | 000391804200001 | |
dc.identifier.doi | 10.1002/jbm.b.33523 | |
dc.identifier.pmid | 26372168 | |
dc.identifier.scopus | 2-s2.0-84941729332 | |
dc.type.version | publishedVersion |