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논문 기본 정보

자료유형
학술저널
저자정보
da Rosa Amanda Freitas (Department of Dentistry - Endodontics Division Health Sciences Center Federal University of Santa Catarina Florianópolis SC Brazil.) Amaral Thuany Schmitz (Department of Dentistry - Endodontics Division Health Sciences Center Federal University of Santa Catarina Florianópolis SC Brazil.) Paz Dotto Maria Eduarda (Department of Dentistry - Endodontics Division Health Sciences Center Federal University of Santa Catarina Florianópolis SC Brazil.) Goulart Taynara Santos (Department of Dentistry - Endodontics Division Health Sciences Center Federal University of Santa Catarina Florianópolis SC Brazil.) Rossetto Hebert Luís (Engineering Center Federal University of Pelotas Pelotas RS Brazil.) Bortoluzzi Eduardo Antunes (Department of Diagnosis) Teixeira Cleonice da Silveira (Department of Dentistry - Endodontics Division Health Sciences Center Federal University of Santa Catarina Florianópolis SC Brazil.) Garcia Lucas da Fonseca Roberti (Department of Dentistry - Endodontics Division Health Sciences Center Federal University of Santa Catarina Florianópolis SC Brazil.)
저널정보
대한치과보존학회 Restorative Dentistry and Endodontics Restorative Dentistry and Endodontics 제48권 제1호
발행연도
2023.2
수록면
1 - 14 (14page)
DOI
10.5395/rde.2023.48.e3

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Objectives This study evaluated the effect of different nanoparticulated zinc oxide (nano-ZnO) and conventional-ZnO ratios on the physicochemical properties of calcium aluminate cement (CAC). Materials and Methods The conventional-ZnO and nano-ZnO were added to the cement powder in the following proportions: G1 (20% conventional-ZnO), G2 (15% conventional-ZnO + 5% nano-ZnO), G3 (12% conventional-ZnO + 3% nano-ZnO) and G4 (10% conventional-ZnO + 5% nano-ZnO). The radiopacity (Rad), setting time (Set), dimensional change (Dc), solubility (Sol), compressive strength (Cst), and pH were evaluated. The nano-ZnO and CAC containing conventional-ZnO were also assessed using scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectroscopy. Radiopacity data were analyzed by the 1-way analysis of variance (ANOVA) and Bonferroni tests (p < 0.05). The data of the other properties were analyzed by the ANOVA, Tukey, and Fisher tests (p < 0.05). Results The nano-ZnO and CAC containing conventional-ZnO powders presented particles with few impurities and nanometric and micrometric sizes, respectively. G1 had the highest Rad mean value (p < 0.05). When compared to G1, groups containing nano-ZnO had a significant reduction in the Set (p < 0.05) and lower values of Dc at 24 hours (p < 0.05). The Cst was higher for G4, with a significant difference for the other groups (p < 0.05). The Sol did not present significant differences among groups (p > 0.05). Conclusions The addition of nano-ZnO to CAC improved its dimensional change, setting time, and compressive strength, which may be promising for the clinical performance of this cement.

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