Chinese Journal of Tissue Engineering Research ›› 2018, Vol. 22 ›› Issue (18): 2849-2854.doi: 10.3969/j.issn.2095-4344.0703

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In vitro antibacterial effect of benzalkonium chloride on five common oral pathogens

Dai Jing, Chen Yan-bin, Chen Shan, Ren Jing, Li Kun-man, Yang Jun-ying   

  1. Department of Stomatology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
  • Received:2017-11-02 Online:2018-06-28 Published:2018-06-28
  • Contact: Yang Jun-ying, Master, Professor, Master’s supervisor, Department of Stomatology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
  • About author:Dai Jing, Master candidate, Department of Stomatology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
  • Supported by:

    A Transverse Issue: In Vitro Bacteriostasis Experiment of Benzalkonium Chloride on Common Pathogens of Oral Diseases, No. K0601161

Abstract:

BACKGROUND: Benzalkonium chloride has been used in dental restorative materials to enhance the long-lasting antibacterial properties of materials.

OBJECTIVE: To evaluate the antibacterial activity of benzalkonium chloride on oral common pathogenic bacteria in vitro.
METHODS: The agar diffusion method was used to determine the inhibitory effects of antibacterial agents, 0.1% benzalkonium chloride, 3% H2O2 and 5.25% sodium hypochlorite, on five kind of oral pathogens, Porphyromonas gingivalis (P.g), Prevotella intermedia (P.i), Actinobacillus actionmycemcomitans (A.a), Streptococcus mutans (S.m) and Enterococcus faecalis (E.f). The tube dilution method was used to detect the minimal inhibitory concentration of benzalkonium chloride against the five bacteria mentioned above.
RESULTS AND CONCLUSION: The antibacterial effect of 0.1% benzalkonium chloride on P.g was not significantly different from that of 3% hydrogen peroxide (P > 0.05), while 0.1% benzalkonium chloride showed better effect on P.i than 3% hydrogen peroxide (P < 0.05). On P.g and P.i, the antibacterial effect of 0.1% benzalkonium chloride was worse than that of 5.25% sodium hypochloritethe (P < 0.05). The antibacterial effect of 0.1% benzalkonium chloride on A.a and S.m was better than that of 3% hydrogen peroxide (P < 0.05), and similar to that of 5.25% sodium hypochlorite (P > 0.05). The antibacterial effect of 0.1% benzalkonium chloride on E.f was better than that of 3% hydrogen peroxide (P < 0.05), but worse than that of 5.25% sodium hypochlorite (P < 0.05). The minimal inhibitory concentration of benzalkonium chloride to P.g, P.i, A.a, S.m, E.f was 16, 2, 4, 2, 4 mg/L, respectively. To conclude, 0.1% benzalkonium chloride has strong antibacterial effects on P.g, P.i, A.a, S.m and E.f

Key words: Dental Materials, Benzalkonium Compounds, Microbial Sensitivity Tests, Tissue Engineering

CLC Number: