دورية أكاديمية
Analysis of transmittance and degree of conversion of composite resins.
| العنوان: | Analysis of transmittance and degree of conversion of composite resins. |
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| المؤلفون: | Balbinot EDCA; School of Life Sciences, Pontifical Catholic University of Paraná, Curitiba, Paraná, Brazil., Pereira MFCC; School of Life Sciences, Pontifical Catholic University of Paraná, Curitiba, Paraná, Brazil., Skupien JA; Franciscan University, Santa Maria, Rio Grande do Sul, Brazil., Balbinot CEA; Franciscan University, Santa Maria, Rio Grande do Sul, Brazil., da Rocha G; Federal University of Paraná, Curitiba, Paraná, Brazil., Vieira S; School of Life Sciences, Pontifical Catholic University of Paraná, Curitiba, Paraná, Brazil. |
| المصدر: | Microscopy research and technique [Microsc Res Tech] 2019 Nov; Vol. 82 (11), pp. 1953-1961. Date of Electronic Publication: 2019 Aug 14. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Wiley-Liss Country of Publication: United States NLM ID: 9203012 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-0029 (Electronic) Linking ISSN: 1059910X NLM ISO Abbreviation: Microsc Res Tech Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: New York, NY : Wiley-Liss, c1992- |
| مواضيع طبية MeSH: | Composite Resins/*chemistry , Materials Testing/*methods, Spectroscopy, Fourier Transform Infrared ; Surface Properties |
| مستخلص: | The objective of this study was to evaluate and correlate light transmittance (T), initial degree of conversion (IDC), and degree of conversion after 24 hr (DC24) for 22 composite resins (CR) for enamel and dentin use. The transmittance (n = 10) was measured with a spectrometer at a wavelength of 468.14 nm. The degree of conversion (DC; n = 5) was measured with Fourier Transform Near-Infrared Spectroscopy before polymerization, immediately after photoactivation, and 24 hr after photoactivation. Both sets of values are provided as percentages. ANOVA and Games-Howell (α = 5%) tests showed that Filtek Supreme Ultra gave the highest T values of all enamel CRs, while Esthet-X HD presented the lowest. Meanwhile, Venus diamond gave the highest values of all dentin CRs, while Esthet-X HD gave the lowest. For IDC and DC24, ANOVA showed differences between individual CRs and the two CR types (p < .0001). Despite the limitations of this study, it can be concluded that there was no correlation between T and either IDC or DC24 (p > .05); however, IDC and DC24 were strongly correlated (p < .05) by Pearson's correlation. That being said, as a higher DC reflects better mechanical properties, certain conclusions can be drawn about overall performance. The best IDC values were observed for the Opallis enamel resin and the Opallis and Premise dentin resins. Meanwhile, the best DC24 values were observed for the Opallis, Charisma, and Premise enamel resins and the Opallis and Premise dentin resins. Degree of conversion and light transmittance showed differences between composite resin types (enamel and dentin) and brands. It is important to know at the moment of composite choice taking into account mechanical and optical properties. (© 2019 Wiley Periodicals, Inc.) |
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| فهرسة مساهمة: | Keywords: composite resin; degree of conversion; inorganic portion; monomer; transmittance |
| المشرفين على المادة: | 0 (Charisma composite resin) 0 (Composite Resins) 0 (Esthet-X) 0 (Opallis) 0 (premise composite resin) |
| تواريخ الأحداث: | Date Created: 20190815 Date Completed: 20200113 Latest Revision: 20200113 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1002/jemt.23364 |
| PMID: | 31411354 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1097-0029 |
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| DOI: | 10.1002/jemt.23364 |