Effects of Blood Contamination on Sealing Ability and Microhardness of Mineral Trioxide Aggregate Used as a Root-end Filling Material
Effects of Blood Contamination on Sealing Ability and Microhardness of Mineral Trioxide Aggregate Used as a Root-end Filling Material
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血液污染对三氧化二矿物骨料根端充填材料封闭性及显微硬度的影响
DOI：
10.11471/shikahozon.56.200
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
K. Koba
中科院分区：
文献类型：
--
作者：
Shigeo Sasaki;Y. Kimura;Hiroaki Imai;Yasuko Sato;A. Kamada;F. Kurumada;Nobuo Yamazaki;Masayoshi Yamada;Y. Amano;Y. Masuda;Yoshishige Yamada;K. Koba
Purpose: The purpose of this study was to evaluate the influence of various contaminants on the apical sealing ability and microhardness of mineral trioxide aggregate (MTA) in extracted teeth ex vivo. Methods: The root canals of 51 single-rooted human teeth were prepared and fi11ed with laterally condensed guttapercha cones and a sealer After root surface coating, apicoectomy ancl preparation of apical cavities, the teeth were randomly divided into 5 groups. Group 1 was contarninated with distMed water (control), group 2 with saline solution, group 3 with adrenalin solution, group 4 with blood, and group 5 with EDTZA solution. After filling with MZA, the teeth were subjected to a leakage test. The teeth samples were then bisected and subjected to a microhardness test, and observed by stereoscopy and scanning electron microscopy Results: A hermetic seal was observecl morphologically in group 1. Howeve; partial sealing and gaps between dentin and MTZA or lacunae in MTA were observed in groups 2-5. Group 1 showed significantly less leakage than the other groups, but there was no significant difference among the experimental groups, The microhardness of group 5 was significant]y Iess than that of group 1. Conclusion: The results suggested that contamination of MZA while setting decreased the sealing ability of M[[IA.
影响因子：
4.2
作者：
Fridland, M;Rosado, R
通讯作者：
Rosado, R