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Kasraei S, Sami L, Hendi S, et al. Antibacterial properties of composite resins incorporating silver and zinc oxide nanoparticles on Streptococcus mutans and Lactobacillus. Restor Dent Endod. 2014;39(2):109-14doi: 10.5395/rde.2014.39.2.109.
Kasraei, S., Sami, L., Hendi, S., Alikhani, M. Y., Rezaei-Soufi, L., & Khamverdi, Z. (2014). Antibacterial properties of composite resins incorporating silver and zinc oxide nanoparticles on Streptococcus mutans and Lactobacillus. Restorative dentistry & endodontics, 39(2), 109-14. https://doi.org/10.5395/rde.2014.39.2.109
Kasraei, Shahin, et al. "Antibacterial properties of composite resins incorporating silver and zinc oxide nanoparticles on Streptococcus mutans and Lactobacillus." Restorative dentistry & endodontics vol. 39,2 (2014): 109-14. doi: https://doi.org/10.5395/rde.2014.39.2.109
Kasraei S, Sami L, Hendi S, Alikhani MY, Rezaei-Soufi L, Khamverdi Z. Antibacterial properties of composite resins incorporating silver and zinc oxide nanoparticles on Streptococcus mutans and Lactobacillus. Restor Dent Endod. 2014 May;39(2):109-14. doi: 10.5395/rde.2014.39.2.109. Epub 2014 Mar 21. PMID: 24790923; PMCID: PMC3978100.
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Restor Dent Endod. 2014 May;39(2):109-14. doi: 10.5395/rde.2014.39.2.109. Epub 2014 Mar 21.

Antibacterial properties of composite resins incorporating silver and zinc oxide nanoparticles on Streptococcus mutans and Lactobacillus.

Restorative dentistry & endodontics

Shahin Kasraei, Lida Sami, Sareh Hendi, Mohammad-Yousef Alikhani, Loghman Rezaei-Soufi, Zahra Khamverdi

Affiliations

  1. Dental Research Center, Department of Restorative Dentistry, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran.
  2. Department of Oral Medicine, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran.
  3. Department of Endodontic, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran.
  4. Department of Microbiology, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran.
  5. Department of Restorative Dentistry, Dental School, Hamadan University of Medical Sciences, Hamadan, Iran.

PMID: 24790923 PMCID: PMC3978100 DOI: 10.5395/rde.2014.39.2.109

Abstract

OBJECTIVES: Recurrent caries was partly ascribed to lack of antibacterial properties in composite resin. Silver and zinc nanoparticles are considered to be broad-spectrum antibacterial agents. The aim of the present study was to evaluate the antibacterial properties of composite resins containing 1% silver and zinc-oxide nanoparticles on Streptococcus mutans and Lactobacillus.

MATERIALS AND METHODS: Ninety discoid tablets containing 0%, 1% nano-silver and 1% nano zinc-oxide particles were prepared from flowable composite resin (n = 30). The antibacterial properties of composite resin discs were evaluated by direct contact test. Diluted solutions of Streptococcus mutans (PTCC 1683) and Lactobacillus (PTCC 1643) were prepared. 0.01 mL of each bacterial species was separately placed on the discs. The discs were transferred to liquid culture media and were incubated at 37℃ for 8 hr. 0.01 mL of each solution was cultured on blood agar and the colonies were counted. Data was analyzed with Kruskall-Wallis and Mann-Whitney U tests.

RESULTS: Composites containing nano zinc-oxide particles or silver nanoparticles exhibited higher antibacterial activity against Streptococcus mutans and Lactobacillus compared to the control group (p < 0.05). The effect of zinc-oxide on Streptococcus mutans was significantly higher than that of silver (p < 0.05). There were no significant differences in the antibacterial activity against Lactobacillus between composites containing silver nanoparticles and those containing zinc-oxide nanoparticles.

CONCLUSIONS: Composite resins containing silver or zinc-oxide nanoparticles exhibited antibacterial activity against Streptococcus mutans and Lactobacillus.

Keywords: Anti-bacterial agents; Composite resin; Nanoparticles; Silver; Zinc oxide

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