Sealing properties of three resin-based sealers
10.3760/cma.j.issn.1002-0098.2014.11.008
- VernacularTitle:三种甲基丙烯酸树脂类封闭剂根管封闭性能的研究
- Author:
Sui MAI
1
;
Shiyu WU
;
Lisha GU
;
Yipin QI
;
Qiurong SUN
;
Junqi LING
Author Information
1. 中山大学光华口腔医学院·附属口腔医院牙体牙髓科·广东省口腔医学重点实验室
- Keywords:
Acrylic resinsr;
Dental materials;
Sealing ability;
Microleakage
- From:
Chinese Journal of Stomatology
2014;49(11):672-676
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the sealing properties of three resin-based sealers,EndoREZ,RealSEAL and RealSEAL SE.Methods Forthy-eight extracted human anterior teeth with single root and canal were prepared using ProTaper files with crown-down technique to F3.The teeth were filled with three sealer respectively with hot gutta-percha vertical condensation technique simulating the clinical situation.Leakage quantity was detected using computerized fluid filtration meter with 10 samples in each group.The cross section morphology of apical parts of roots of 5 mm was observed with scanning electron microscope and transmission electron microscope in 3 samples of each group,respectively.Results The leakage quantity of EndoREZ,RealSEAL and RealSEAL SE were (2.61 ± 0.60),(1.43± 0.11) and (1.76 ± 0.18) μl/min,respectively.The gaps between the the sealer and the canal wall were increased in in order of RealSEAL,RealSEAL SE and EndoREZ.No obvious demineralized dentin under EndoREZ and the smear layer was not completed removed.The partly demineralized dentin was observed under RealSEAL and the smear layer was totally removed.The partly demineralized dentin was seen under RealSEAL SE and the majority of smear layer was removed.Conclusions Among the three resin-based sealers,RealSEAL has the best sealing properties,followed by RealSEAL SE and EndoREZ.
