Theobaldo Jéssica D, Vieira-Junior Waldemir F, Cortellazzi Karine L, Marchi Giselle M, Lima Débora Anl, Aguiar Flávio Hb
Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil.
São Leopoldo Mandic Institute and Dental Research Center, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil.
Am J Dent. 2020 Apr;33(2):83-88.
To evaluate the effect of cigarette smoke (CS) on color, roughness and gloss of bulk-fill resin composites.
Resin discs (10 x 2 mm) were made for resin composites (n= 10) : Filtek Z250XT (control), Filtek One Bulk Fill (FOBF), Tetric N-Ceram Bulk-Fill (TBF) and Aura Bulk-Fill (ABF). The color ( ΔL*, Δa*, Δb*, ΔE and ΔE00), roughness (Ra) and gloss analyses were performed at the baseline and after CS exposure (10 packs of cigarettes - Marlboro Red). The data were analyzed with repeated measures ANOVA and Tukey's test for Ra and gloss; and one-way ANOVA and Tukey's test for ΔL*, Δa*, Δb*, ΔE and ΔE00 ( α= 0.05).
For ΔL*, all groups presented reduced luminosity and all bulk-fill resin composites differed statistically from the control (P< 0.05). ABF presented greater variation of ΔL*, differing statistically from all resin composites (P< 0.05). For ΔE and ΔE00, all bulk-fill resin composites showed greater staining, differing statistically from the control, which presented lower values. For Ra, after CS, only ABF presented a decrease, differing statistically from baseline (P< 0.05). After CS smoke, all groups presented gloss increase, statistically different from the baseline (P< 0.05), and when compared among resin composites, no difference was found.
Bulk-fill resin composites are more prone to staining by cigarette smoke when compared to the conventional microhybrid resin composites.
评估香烟烟雾(CS)对大块充填树脂复合材料颜色、粗糙度和光泽度的影响。
制作树脂复合材料(n = 10)的树脂圆盘(10×2毫米):Filtek Z250XT(对照)、Filtek One Bulk Fill(FOBF)、Tetric N-Ceram Bulk-Fill(TBF)和Aura Bulk-Fill(ABF)。在基线时以及CS暴露后(10包万宝路红香烟)进行颜色(ΔL*、Δa*、Δb*、ΔE和ΔE00)、粗糙度(Ra)和光泽度分析。对Ra和光泽度数据采用重复测量方差分析和Tukey检验;对ΔL*、Δa*、Δb*、ΔE和ΔE00采用单因素方差分析和Tukey检验(α = 0.05)。
对于ΔL*,所有组的亮度均降低,所有大块充填树脂复合材料与对照组在统计学上有差异(P < 0.05)。ABF的ΔL*变化更大,与所有树脂复合材料在统计学上有差异(P < 0.05)。对于ΔE和ΔE00,所有大块充填树脂复合材料均显示出更大的染色,与对照组在统计学上有差异,对照组的值较低。对于Ra,CS暴露后,只有ABF呈现下降,与基线在统计学上有差异(P < 0.05)。CS烟雾暴露后,所有组的光泽度均增加,与基线在统计学上有差异(P < 0.05),在树脂复合材料之间比较时,未发现差异。
与传统微混合树脂复合材料相比,大块充填树脂复合材料更容易被香烟烟雾染色。