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• W4289520625 abstract "Background. The aging process can induce a change in the surface microstructure of materials, the chemical compositions of matrices, and the filler particles of resin composites. This study is aimed at evaluating the effects of accelerated artificial aging (AAA) on the color change, translucency parameter (TP), and surface hardness of resin composites. Methods. Five resin composite materials (Tetric N-Ceram, Filtek Z250, Charisma Smart, Herculite Classic, and Escom100) were evaluated. A spectrophotometer was used for color measurements ( <math xmlns=http://www.w3.org/1998/Math/MathML id=M1> <mi>L</mi> <mo>∗</mo> </math> , <math xmlns=http://www.w3.org/1998/Math/MathML id=M2> <mi>a</mi> <mo>∗</mo> </math> , and <math xmlns=http://www.w3.org/1998/Math/MathML id=M3> <mi>b</mi> <mo>∗</mo> </math> ). TP and color changes ( <math xmlns=http://www.w3.org/1998/Math/MathML id=M4> <mi>Δ</mi> <msub> <mrow> <mi>E</mi> </mrow> <mrow> <mn>00</mn> </mrow> </msub> </math> ) were calculated using the CIEDE2000 formula. The resin materials were subjected to aging for 300 hours. The hardness and TP values were measured before and after AAA. One- and two-way ANOVA and the Tukey test were used. The significance level was accepted as <math xmlns=http://www.w3.org/1998/Math/MathML id=M5> <mi>p</mi> <mo><</mo> <mn>0.05</mn> </math> . Results. Escom100 had significantly higher <math xmlns=http://www.w3.org/1998/Math/MathML id=M6> <mi>Δ</mi> <msub> <mrow> <mi>E</mi> </mrow> <mrow> <mn>00</mn> </mrow> </msub> </math> values than the other resin composites, and Charisma Smart had significantly lower <math xmlns=http://www.w3.org/1998/Math/MathML id=M7> <mi>Δ</mi> <msub> <mrow> <mi>E</mi> </mrow> <mrow> <mn>00</mn> </mrow> </msub> </math> values than the other tested materials ( <math xmlns=http://www.w3.org/1998/Math/MathML id=M8> <mi>p</mi> <mo><</mo> <mn>0.05</mn> </math> ). Before and after AAA, Charisma Smart had the lowest TP values, and Filtek Z250 exhibited the highest hardness values ( <math xmlns=http://www.w3.org/1998/Math/MathML id=M9> <mi>p</mi> <mo><</mo> <mn>0.05</mn> </math> ). For TP and surface hardness, the effect size value of the composite material was found to be higher than that of AAA. Conclusions. After AAA, the investigated resin composites had <math xmlns=http://www.w3.org/1998/Math/MathML id=M10> <mi>Δ</mi> <msub> <mrow> <mi>E</mi> </mrow> <mrow> <mn>00</mn> </mrow> </msub> </math> values that were above clinically acceptable thresholds. After aging, the tested materials generally exhibited decreases in <math xmlns=http://www.w3.org/1998/Math/MathML id=M11> <mi>L</mi> <mo>∗</mo> </math> values and <math xmlns=http://www.w3.org/1998/Math/MathML id=M12> <mi>a</mi> <mo>∗</mo> </math> values, while increases in <math xmlns=http://www.w3.org/1998/Math/MathML id=M13> <mi>b</mi> <mo>∗</mo> </math> values were observed. The ΔTP values of the resin composites were similar. AAA significantly increased the surface hardness of the tested materials." @default.
• W4289520625 created "2022-08-03" @default.
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• W4289520625 date "2022-08-02" @default.
• W4289520625 modified "2023-09-30" @default.
• W4289520625 title "Accelerated Aging Effects on Color Change, Translucency Parameter, and Surface Hardness of Resin Composites" @default.
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• W4289520625 doi "https://doi.org/10.1155/2022/6468281" @default.
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