Jacob Jose, Devadathan A, Joseph Suja, Dathan Pradeep C, Mathew Suja, Kuriakose Rene
Department of Conservative Dentistry and Endodontics, Pushpagiri College of Dental Sciences, Thiruvalla, Kerala, India.
Department of Prosthodontics and Crown and Bridge, Pushpagiri College of Dental Sciences, Thrissur, Kerala, India.
J Pharm Bioallied Sci. 2022 Jul;14(Suppl 1):S631-S637. doi: 10.4103/jpbs.jpbs_756_21. Epub 2022 Jul 13.
The aim of this study is to evaluate and compare the sealing ability of a new resin cement which was undergoing trial with other three luting cements.
study.
Forty extracted intact human premolars were selected and standardized class 5 preparations for inlays were done at cementoenamel junction of buccal surfaces and direct composite inlay was fabricated. The samples were randomly grouped into 4: Group I luted with Rely X ARC resin cement, Group II with DCRC-10, a new indigenously developed resin cement, Group III with FujiCEM, and Group IV with zinc phosphate. After 24 h storage, samples were thermocycled and immersed in basic fuchsine dye. The longitudinal sections were assessed under a stereomicroscope for microleakage using graded criteria.
To analyze leakage scores among four groups and between enamel and dentin/cementum margins, Kruskal-Wallis nonparametric test and the Mann-Whitney test at < 0.05 were used.
The dye penetration at cementum/dentin margins showed a statistically significant difference among four groups ( < 0.001). Adhesive luting cements produced lesser leakage scores at both margins than those cemented with zinc phosphate.
The indigenously developed resin cement (DCRC-10, Group II) is comparable to that of Group I (RelyX ARC) in terms of its luting efficiency.
本研究旨在评估并比较一种正在试验的新型树脂水门汀与其他三种粘结水门汀的封闭能力。
研究。
选取40颗完整拔除的人类前磨牙，在颊面牙骨质釉质界制备标准化的5类嵌体预备体，并制作直接复合嵌体。样本随机分为4组：第I组用Rely X ARC树脂水门汀粘结，第II组用新研发的国产树脂水门汀DCRC - 10粘结，第III组用FujiCEM粘结，第IV组用磷酸锌粘结。储存24小时后，样本进行热循环处理并浸入碱性品红染料中。在体视显微镜下根据分级标准评估纵向切片的微渗漏情况。
为分析四组之间以及釉质与牙本质/牙骨质边缘之间的渗漏评分，使用Kruskal - Wallis非参数检验和Mann - Whitney检验（P < 0.05）。
四组在牙骨质/牙本质边缘的染料渗透情况存在统计学显著差异（P < 0.001）。粘结性水门汀在两个边缘产生的渗漏评分均低于用磷酸锌粘结的情况。
国产树脂水门汀（第II组DCRC - 10）在粘结效率方面与第I组（RelyX ARC）相当。
