Restorative Dentistry & Endodontics

Research Article

Comparative assessment of antibacterial activity of different glass ionomer cements on cariogenic bacteria: Rahul Gaybarao Naik, Arun Suresh Dodamani, Mahesh Ravindra Khairnar, Harish Chaitram Jadhav, Manjiri Abhay Deshmukh; Restor Dent Endod 2016;41(4):278-282. Published online September 20, 2016; DOI: https://doi.org/10.5395/rde.2016.41.4.278

Objectives

Glass ionomer cements (GICs), which are biocompatible and adhesive to the tooth surface, are widely used nowadays for tooth restoration. They inhibit the demineralization and promote the remineralization of the tooth structure adjacent to the restoration, as well as interfere with bacterial growth. Hence, the present study was conducted to assess and compare the antimicrobial activity of three commercially available GICs against two cariogenic bacteria.

Materials and Methods

An agar plate diffusion test was used for evaluating the antimicrobial effect of three different GICs (Fuji IX, Ketac Molar, and d-tech) on Streptococcus mutans (S. mutans) and Lactobacillus acidophilus (L. acidophilus). Thirty plates were prepared and divided into two groups. The first group was inoculated with S. mutans, and the second group was inoculated with L. acidophilus. These plates were then incubated at 37℃ for 24 hours. Zones of bacterial growth inhibition that formed around each well were recorded in millimeters (mm).

Results

The zones of inhibition for Fuji IX, Ketac Molar, and d-tech on S. mutans were found to be 10.84 ± 0.22 mm, 10.23 ± 0.15 mm, and 15.65 ± 0.31 mm, respectively, whereas those for L. acidophilus were found to be 10.43 ± 0.12 mm, 10.16 ± 0.11 mm, and 15.57 ± 0.13 mm, respectively.

Conclusions

D-tech cement performed better in terms of the zone of bacterial inhibition against the two test bacteria, than the other two tested glass ionomers.

Citations

Citations to this article as recorded by

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YA Maher, MT Rajeh, FA Hamooda, GO Zerain, RM Habis, RH Sulaimani, ST Albar, FMH Ali, NA Abdelaleem
Nigerian Journal of Clinical Practice.2023; 26(4): 404. CrossRef
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RV Aparajitha, PSenthamil Selvan, AShafie Ahamed, S Bhavani, V Nagarajan
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Effect of conditioning and 1 year aging on the bond strength and interfacial morphology of glass-ionomer cement bonded to dentin
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Original Article

Antibiotic susceptibility in mutans streptococci and Streptococcus anginosus isolated from dental plaque: Joong-Ki Kook, Sang-Soo Lim, So Young Yoo, Ho-Keel Hwang; J Korean Acad Conserv Dent 2004;29(5):462-469. Published online September 30, 2004; DOI: https://doi.org/10.5395/JKACD.2004.29.5.462

Abstract PDF PubReader ePub: The aim of this study was to investigate the susceptibility of mutans streptococci (S. mutans and S. sobrinus) and Streptococcus anginosus, for seven antibiotics, penicillin G, amoxicillin, ciprofloxacin, cefuroxime, erythromycin, bacitracin, and vancomycin. The minimum inhibitory concentration (MIC) of seven antibiotics against 3 species (type strains) of mutans streptococci and S. anginosus, 10 strains (wild type) of S. mutans, 7 strains (wild type) of S. sobrinus, and 11 strains (wild type) of S. anginosus, were measured by broth dilution method. All of the type strains of mutans streptococci and S. anginosus had the same susceptibility for penicillin G, amoxicillin, cefuroxime and bacitracin. Type strain of S. anginosus was sensitive in ciprofloxacin, but those of mutans streptococci were not. All of the clinical isolates of mutans streptococci and S. anginosus had the same susceptibility for the seven antibiotics. Our data reveal that mutans streptococci and S. anginosus have similar antibiotic-resistant character. In addition, these results may offer the basic data to verify the antibiotic-resistant mechanism of mutans streptococci and S. anginosus.

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