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首页> 外文期刊>The Journal of Prosthetic Dentistry >Microleakage of Class V compomer and light-cured glass ionomer restorations.
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Microleakage of Class V compomer and light-cured glass ionomer restorations.

机译：V类复合物和光固化玻璃离聚物修复体的微渗漏。

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STATEMENT OF PROBLEM: Resin-modified (light-cured) glass ionomer and polyacid-modified composite resin (compomer) restorations are popular choices for the restoration of root caries and cervical abrasion/erosion lesions, but clinical studies are relatively few and have been published primarily as abstracts. PURPOSE: In the absence of adequate clinical data, the marginal integrity of restorations of the above two types of material was compared in vitro. The microleakage of restorations of two light-cured glass ionomer restorative materials and of one compomer material was evaluated. METHODS AND MATERIAL: Restorations of the three materials were placed in facial and lingual Class V cavity preparations in bovine incisors. All preparations were centered on the cementoenamel junction and were prepared with 45-degree enamel bevels. After thermal cycling, teeth were immersed in methylene blue dye, then sections of the restorations (n = 16) were visually evaluated. RESULTS: Dye penetration was observed at approximately 20% of restoration margins for all three materials, with the greatest incidence of severe leakage in the compomer restorations. CONCLUSION: No significant difference in microleakage among the three materials (ANOVA; p > 0.05) was found.
机译：问题陈述：树脂改性的（光固化）玻璃离聚物和多元酸改性的复合树脂（复合物）修复体是根部龋齿和宫颈磨蚀/侵蚀性病变修复的流行选择，但临床研究相对较少，并且已经发表主要作为摘要。目的：在缺乏足够的临床数据的情况下，在体外比较了上述两种材料的修复体的边缘完整性。评价了两种光固化玻璃离聚物修复材料和一种复合材料修复体的微渗漏。方法和材料：将这三种材料的修复物放入牛切牙的V类面部和舌头腔准备中。所有制剂均以牙釉质结合处为中心，并用45度搪瓷斜面制备。热循环后，将牙齿浸入亚甲蓝染料中，然后目视评估修复体的切片（n = 16）。结果：在所有三种材料中，染料渗透率约为修复体边缘的20％，复合体修复体中严重渗漏的发生率最高。结论：三种材料之间的微渗漏没有显着差异（方差分析; p> 0.05）。

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