Sarangi Priyanka, Mallick Rashmirekha, Satapathy Sukanta Kumar, Sharma Gaurav, Kouser Fathima, Mohapatra Satyajit
Department of Conservative Dentistry and Endodontics, SCB Dental College and Hospital, Cuttack, Odisha, India.
Department of Maxillofacial Prosthodontics, Awadh Dental College and Hospital, Jamshedpur, Jharkhand, India.
Contemp Clin Dent. 2017 Oct-Dec;8(4):613-616. doi: 10.4103/ccd.ccd_666_17.
The aim of this study is to evaluate and compare the pushout bond strengths of Resilon with two different sealers: Resilon/MetaSEAL (methacrylate based) and Resilon/AH Plus (an epoxy resin-based sealer).
Forty single canal anterior teeth were decoronated at cementoenamel junction and standardized to 10 ± 1 mm length. Working length was determined followed by biomechanical preparation. Then, the specimens were randomly assigned into two groups of 20 teeth each based on the sealer used with Resilon. All canals were obturated using single-cone obturation technique. Root samples were prepared for pushout testing. The universal testing machine gave the debonding force for individual specimen. This was done for all the specimens.
This was done by using unpaired Student's -test.
The roots filled with Resilon/MetaSEAL had higher bond strength (1.49 ± 0.09 MPa) compared to Resilon/AH Plus (0.90 ± 0.04 MPa) group. The difference in bond strength was statistically significant ( = 0.0000).
Through this pushout bond strength test, it could be noted that MetaSEAL did appear to bond to the dentin and could be used as a potential endodontic sealer.
本研究旨在评估和比较Resilon与两种不同封闭剂的推出粘结强度：Resilon/MetaSEAL（甲基丙烯酸酯基）和Resilon/AH Plus（环氧树脂基封闭剂）。
40颗单根管前牙在牙骨质釉质界处截冠，并标准化至10±1mm长度。确定工作长度后进行生物力学预备。然后，根据与Resilon一起使用的封闭剂，将标本随机分为两组，每组20颗牙。所有根管均采用单锥充填技术进行充填。制备根样本用于推出测试。万能试验机给出单个标本的脱粘力。对所有标本都进行了此操作。
采用非配对t检验进行。
与Resilon/AH Plus组（0.90±0.04MPa）相比，用Resilon/MetaSEAL充填的牙根具有更高的粘结强度（1.49±0.09MPa）。粘结强度的差异具有统计学意义（P = 0.0000）。
通过此推出粘结强度测试，可以注意到MetaSEAL似乎确实与牙本质粘结，并且可以用作潜在的牙髓封闭剂。
