文献类型：期刊文献

英文题名：Bismuth-doped injectable calcium phosphate cement with improved radiopacity and potent antimicrobial activity for root canal filling

作者：Chen, Fangping[1,2];Liu, Changsheng[1,2];Mao, Yuhao[3]

机构：[1]E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Engn Res Ctr Biomed Mat, Minist Educ, Shanghai 200237, Peoples R China

年份：2010

卷号：6

期号：8

起止页码：3199

外文期刊名：ACTA BIOMATERIALIA

收录：;EI(收录号：20215111345255);WOS:【SCI-EXPANDED(收录号:WOS:000279583400039)】；

基金：This investigation was supported by the National Science and Technology Pillar Program during the Eleventh Five-Year Plan Period (no. 2006BAI16B03), National Natural Science Foundation of China (no. 50732002), Standard Special Program of Science and Technology Development of Shanghai (no. 08DZ0501600), the Program for Changjiang Scholars and the Innovative Research Team in University and the Shanghai Leading Academic Discipline Project (no B502).

语种：英文

外文关键词：Injectable calcium phosphate cement; Radiopacity; Antimicrobial activity; Root canal filling; Sealability

摘要：A bismuth-doped injectable calcium phosphate cement (BD-ICPC) with improved radiopacity. potent antimicrobial activity and sealability was developed by introducing bismuth salicylate basic (BSB) into the powder phase of the calcium phosphate cement (CPC) The results showed that the radiopacity and sealability of BD-ICPC were improved compared with pure ICPC Although BSB had a retarding effect on the setting rate of the cement, the addition of BSB reduced the viscosity and yield stress of BD-ICPC, thus enhanced its injectability. It was noteworthy that BD-ICPC had a potent antimicrobial activity with improved sealability In addition, BD-ICPC afforded a uniform and tight adaptation to the root canal wall. These results indicate that BD-ICPC possesses a combination of good in vino radiopacity, high injectability, potent antimicrobial activity, improved sealability and tight adaptation to the root canal. It is expected to he used as a novel root canal filling material (C) 2010 Acta Materialia Inc Published by Elsevier Ltd All rights reserved.