PMC:2854328 / 16737-17626 JSONTXT

{"project":"MyTest","denotations":[{"id":"20396441-15833394-28965139","span":{"begin":405,"end":407},"obj":"15833394"}],"namespaces":[{"prefix":"_base","uri":"https://www.uniprot.org/uniprot/testbase"},{"prefix":"UniProtKB","uri":"https://www.uniprot.org/uniprot/"},{"prefix":"uniprot","uri":"https://www.uniprot.org/uniprotkb/"}],"text":"In the present study, DF showed more staining than TPH3, particularly in shade A4. The explanation for this finding lies in the composition of the materials. The resin matrix composition and the amount of filler loading are different among the two composites. Bis-GMA and TEGDMA are both hydrophilic monomers, but water uptake in Bis-GMA resins ranges from 3 to 6%, while in TEGDMA it ranges from 0 to 1%.8 According to the information provided by the manufacturers, TPH3 resin matrix is based on Bis-GMA-adduct and TEGDMA, while DF is based on Bis-GMA only, rendering the latter more subject to water uptake, with subsequent discoloration. In addition, TPH3 is a microhybrid resin composite with 58% by volume filler loading, compared to 40% by volume for microfilled DF. Therefore, the higher staining of DF might have been influenced by the relatively higher volume of the resin matrix."}

{"project":"2_test","denotations":[{"id":"20396441-15833394-28965139","span":{"begin":405,"end":406},"obj":"15833394"}],"text":"In the present study, DF showed more staining than TPH3, particularly in shade A4. The explanation for this finding lies in the composition of the materials. The resin matrix composition and the amount of filler loading are different among the two composites. Bis-GMA and TEGDMA are both hydrophilic monomers, but water uptake in Bis-GMA resins ranges from 3 to 6%, while in TEGDMA it ranges from 0 to 1%.8 According to the information provided by the manufacturers, TPH3 resin matrix is based on Bis-GMA-adduct and TEGDMA, while DF is based on Bis-GMA only, rendering the latter more subject to water uptake, with subsequent discoloration. In addition, TPH3 is a microhybrid resin composite with 58% by volume filler loading, compared to 40% by volume for microfilled DF. Therefore, the higher staining of DF might have been influenced by the relatively higher volume of the resin matrix."}