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首页> 外文期刊>Dental Materials Journal >Proximal contact tightness of class Ⅱ bulk-fill composite resin restorations: An in vitro study
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Proximal contact tightness of class Ⅱ bulk-fill composite resin restorations: An in vitro study

机译:Ⅱ类填充复合树脂修复体的近接触密性:体外研究

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摘要

This study investigated the effect of bulk-fill composites on proximal contact tightness (PCT) of composite restorations using different matrix systems. 150/standardized-MO-ivorine cavity preparations were divided into 5 groups; Smart Dentin Replacement (SDR), SonicFill (SF), Tetric EvoCeram Bulk-Fill (TEB), G-?nial Universal Flo (GF) and Tetric EvoCeram (TE). Each group was subdivided into 3 sub-groups (n =10); Dixieland band in Tofflemire retainer, FenderMate and Palodent plus matrix systems. PCT was measured 24 h post-curing using Tooth Pressure Meter. PCT means were calculated and statistically-analyzed using ANOVA and Tukey’s post-hoc test (p <0.05). Means and SD of PCT for Tofflemire subgroup were: 1.75(0.13), 3.21(0.1), 3.06(0.19), 2.49(0.21) and 3.18(0.1) for (SDR), (SF), (TEB), (GF) and (TE), respectively. Using FenderMate, values were: 1.87(0.08), 3.35(0.12), 3.17(0.16), 2.64(0.1) and 3.26(0.11) for (SDR), (SF), (TEB), (GF) and (TE), respectively, while with Palodentplus; 3.16(0.17), 4.23(0.11), 4.1(0.1), 3.46(0.17) and 3.98(0.1) for (SDR), (SF), (TEB), (GF) and (TE), respectively. ANOVA revealed significant differences (p <0.05) between all samples except between (SF), (TEB) and (TE) and also significant difference between Palodentplus and two subgroups. Effect of bulk-fill composites on PCT is material dependent. Separation ring is recommended for proper PCT.
机译:这项研究调查了填充填料对使用不同基质系统的复合修复体近端接触紧密度(PCT)的影响。 150 / MO-卵黄素标准化腔体制剂分为5组。 Smart Dentin Replacement(SDR),SonicFill(SF),Tetric EvoCeram Bulk-Fill(TEB),G-finial Flo(GF)和Tetric EvoCeram(TE)。每个组又细分为3个子组(n = 10); Tofflemire固定器,FenderMate和Palodent plus矩阵系统中的Dixieland乐队。 PCT是在固化后24小时使用牙齿压力计测量的。使用ANOVA和Tukey的事后检验( p <0.05)计算PCT平均值并进行统计分析。 Tofflemire子组的PCT平均值和标准差分别为(SDR),(SF),(TEB)和(GF)1.75(0.13),3.21(0.1),3.06(0.19),2.49(0.21)和3.18(0.1)和(TE)。使用FenderMate,对于(SDR),(SF),(TEB),(GF)和(TE),值分别为1.87(0.08),3.35(0.12),3.17(0.16),2.64(0.1)和3.26(0.11)。 ,分别与Palodentplus合作时; (SDR),(SF),(TEB),(GF)和(TE)分别为3.16(0.17),4.23(0.11),4.1(0.1),3.46(0.17)和3.98(0.1)。方差分析显示(SF),(TEB)和(TE)之间的所有样本之间均存在显着差异(> 0.05),并且Palodentplus与两个亚组之间也存在显着差异。填充复合材料对PCT的影响取决于材料。建议使用分隔环以适合PCT。

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