3d打印冠树脂的单体释放,混合CAD/CAM块,散装填充,间接和直接复合材料在树脂基后牙体修复:一项体外研究。

IF 1.8
Zehra Süsgün Yildirim, Sevde Gül Batmaz
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引用次数: 0

摘要

目的:本研究的目的是通过比较1小时、3天和1个月时双酚a、TEGDMA、HEMA、UDMA和Bis-GMA单体的释放来评价树脂基后牙修复材料。材料和方法:本研究使用了五种不同的材料:Cerasmart (CS)、gradient - plus Indirect (GI)、G- nial Posterior (GP)、Formlabs 3D- Permanent Crown (FPC)和SonicFill-3 (SF)。所有材料共制备了90个样品,尺寸为8 × 8 × 2 mm3。在75%乙醇/ 25%水的培养箱中浸泡1小时、3天、1个月后,用高效液相色谱法对样品进行分析。对于5种不同材料间呈正态分布的数据比较,采用重复测量方差分析和Bonferroni事后检验(a=0.05)。结果:除双酚a外,其他材料的单体释放量均随时间增加(P < 0.001)。在所有测量时间点,单体释放量最低的材料为CS,单体释放量最高的材料为GP。GI材料中BPA、TEGDMA和BisGMA的释放量最高(P < 0.001), GP材料中UDMA和HEMA的释放量最高(P < 0.001)。结论:1个月后,GP材料中UDMA的单体释放量最高,为0.8%。然而,所有检测材料的单体释放量仍远低于临床可接受范围(1.5% - 5%)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Monomer Release from Resin Materials Used in Posterior Crowns Fabricated via Digital and Conventional Techniques: An In Vitro Study

Purpose: The aim of this study was to evaluate resin-based posterior restorative materials by comparing the release of BPA, TEGDMA, HEMA, UDMA, and Bis-GMA monomers at 1 hour, 3 days and 1 month.

Materials and methods: Five different materials were used in this study: Cerasmart (CS), Gradia-Plus Indirect (GI), G-ænial Posterior (GP), Formlabs 3D- Permanent Crown (FPC), and SonicFill-3 (SF). A total of 90 specimens, 8 x 8 x 2 mm3 in size were prepared from all the materials. The specimens were immersed in 75% ethanol / 25% water solution in an incubator for 1 hour, 3 days, and 1 month, after which the solutions were analyzed using high-performance liquid chromatography (HPLC). For the comparisons of data with normal distribution among the five different materials, Repeated Measures ANOVA followed by the Bonferroni post-hoc test was applied (a=0.05).

Results: Except for BPA release in the FPC material, all other materials exhibited an increasing release of monomers over time (P < .001).At all the measured time points, the material with the lowest monomer release was CS, while the highest release was observed in GP. The GI material exhibited the statistically significant highest release of BPA, TEGDMA and BisGMA (P < .001), while the highest UDMA and HEMA release was observed in the GP material (P < .001).

Conclusion: The highest monomer release was observed for UDMA (0.8%) from the GP material at the end of one month. However, the monomer release from all examined materials remained well below the clinically acceptable range (1.5% - 5%).

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