Chinese Journal of Tissue Engineering Research

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Root canal filling material added with tea polyphenols inhibits the generation of Candida albicans biofilm

Xu Ying1, Lü Qing1, Kang Liang2, Zhang Hui-ming3   

  1. 1 Second Department of Endodontics, Affiliated Stomatology Hospital of Jiamusi University, Jiamusi  154002, Heilongjiang Province, China
    2 First Department of Prosthodontics, Affiliated Stomatology Hospital of Jiamusi University, Jiamusi  154002, Heilongjiang Province, China 
    3 Experimental Center of Life Sciences, Jiamusi University, Jiamusi  154007, Heilongjiang Province, China
  • Received:2012-12-18 Revised:2013-03-27 Online:2013-05-21 Published:2013-05-21
  • Contact: Lü Qing, Master, Second Department of Endodontics, Affiliated Stomatology Hospital of Jiamusi University, Jiamusi 154002, Heilongjiang Province, China lq861229@126.com
  • About author:Xu Ying, Professor, Master’s supervisor, Second Department of Endodontics, Affiliated Stomatology Hospital of Jiamusi University, Jiamusi 154002, Heilongjiang Province, China xuyingjiayi@126.com

Abstract:

BACKGROUND: Candida albicans biofilms can influence the prognosis of root canal filling, and tea polyphenols can in vitro inhibit the Candida albicans biofilm, while the antibacterial mechanism may play the role through influencing or interfering the expression of resistance gene.
OBJECTIVE: To investigate the inhibitory effect of root canal filling material added with tea polyphenols on Candida albicans biofilm.
METHODS: Constant broth dilution method was used to determine the minimal inhibitory concentration of tea polyphenols in vitro inhibited Candida albicans biofilms, in order to identify the inhibitory effect. Then the expressions of Candida albicans resistance genes CDR1, CDR2 and MDR1 were detected with reverse transcriptase polymerase chain reaction after inhibited with tea polyphenols.
RESULTS AND CONCLUSION: The minimum inhibitory concentration of tea polyphenols used to inhibit Candida albicans biofilm was 11.5 mg/mL. Reverse transcriptase polymerase chain reaction results showed that expressions of related resistance genes CDR1 and CDR2 were decreased with the gradient increasing of drug concentration, and when the concentration reached to 25 mg/mL or above, the mRNA expression level was completely inhibited, while the concentration of the resistance drug has less effect on the expression of resistance drug MDR1. Tea polyphenols has inhibitory effect on Candida albicans biofilm, and has significant inhibitory effect on the expressions of experimental selected resistance genes CDR1 and CDR2.

Key words: biomaterials, biomaterial clinical practice, Candida albicans, biofilm, drug resistance, bacteria, tea polyphenols, tea pigment, root canal filling material, performance, endodontic sealers, antibacterial drugs, antibacterial effect, oral diseases, polymerase chain reaction, genotype

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