Raina Aakrati, Sawhny Asheesh, Paul Saurav, Nandamuri Sridevi
Department of Conservative Dentistry and Endodontics, Rama Dental College, Hospital and Research Centre, Kanpur, Uttar Pradesh, India.
Restor Dent Endod. 2020 Jan 8;45(1):e10. doi: 10.5395/rde.2020.45.e10. eCollection 2020 Feb.
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.
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.
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.
Among the 8 sub-groups, the combination of TheraCal and SDR exhibited the highest SBS.
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）。
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。
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）。
在8个亚组中，TheraCal和SDR的组合表现出最高的SBS。
