自粘结和大体积可流动复合树脂与MTA Plus、Dycal、Biodentine和TheraCal粘结强度的比较评估：一项研究。
Comparative evaluation of the bond strength of self-adhering and bulk-fill flowable composites to MTA Plus, Dycal, Biodentine, and TheraCal: an study.
作者信息
Raina Aakrati, Sawhny Asheesh, Paul Saurav, Nandamuri Sridevi
机构信息
Department of Conservative Dentistry and Endodontics, Rama Dental College, Hospital and Research Centre, Kanpur, Uttar Pradesh, India.
出版信息
Restor Dent Endod. 2020 Jan 8;45(1):e10. doi: 10.5395/rde.2020.45.e10. eCollection 2020 Feb.
OBJECTIVES
This study aimed to compare the shear bond strength (SBS) of a self-adhering flowable composite (Dyad Flow) and a bulk-fill flowable composite (Smart Dentin Replacement [SDR]) to several pulp-capping materials, including MTA Plus, Dycal, Biodentine, and TheraCal.
MATERIALS AND METHODS
Eighty acrylic blocks with 2-mm-deep central holes that were 4 mm in diameter were prepared and divided into 2 groups ( = 40 each) according to the composite used (Dyad Flow or SDR). They were further divided into 4 sub-groups ( = 10 each) according to the pulp-capping agent used. SBS was tested using a universal testing machine at a crosshead speed of 1 mm/min. Data were analyzed using 2-way analysis of variance. A value of < 0.05 was considered to indicate statistical significance.
RESULTS
A statistically significant difference ( = 0.040) was found between Dyad Flow and SDR in terms of bond strength to MTA Plus, Dycal, Biodentine, and TheraCal.
CONCLUSIONS
Among the 8 sub-groups, the combination of TheraCal and SDR exhibited the highest SBS.
目的
本研究旨在比较自粘结可流动复合树脂（Dyad Flow）和大块充填可流动复合树脂（Smart Dentin Replacement [SDR]）与几种盖髓材料（包括MTA Plus、Dycal、Biodentine和TheraCal）之间的剪切粘结强度（SBS）。
材料与方法
制备80个直径为4 mm、中心孔深2 mm的丙烯酸树脂块，根据所用复合树脂（Dyad Flow或SDR）分为2组（每组40个）。再根据所用盖髓剂分为4个亚组（每组10个）。使用万能试验机以1 mm/min的十字头速度测试SBS。数据采用双向方差分析进行分析。P值<0.05被认为具有统计学意义。
结果
在与MTA Plus、Dycal、Biodentine和TheraCal的粘结强度方面，Dyad Flow和SDR之间存在统计学显著差异（P = 0.040）。
结论
在8个亚组中，TheraCal和SDR的组合表现出最高的SBS。
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