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Journal of Indian Society of Pedodontics and Preventive Dentistry Official publication of Indian Society of Pedodontics and Preventive Dentistry
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 ORIGINAL ARTICLE
Year : 2020  |  Volume : 38  |  Issue : 4  |  Page : 350-354

In vitro evaluation of milk-based, soy-based, and amino acid-based infant formulas on Streptococcus mutans biofilm formation


Department of Pediatric and Preventive Dentistry, Coorg Institute of Dental Sciences, Kudagu, Karnataka, India

Correspondence Address:
Dr. Hira Sadan
Department of Pediatric and Preventive Dentistry, Coorg Institute of Dental Sciences, K.K. Campus, Maggula Village, Virajpet, Kudagu - 571 218, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/JISPPD.JISPPD_241_20

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Background and Objective: Infant formulas are based on milk, and the addition of simple carbohydrates as a caloric source, for infants. The carbohydrates added in infant formulas can cause a significant increase of Streptococcus mutans in the oral cavity of infants adding to their cariogenicity. Aim: The aim of the study was to assess and compare the biofilm formation in three commercially available infant formulas;which are based on milk, soy and amino acid. Settings and Design: In vitro microbiological assay of Streptococcus mutans biofilm formation in milk based, soy based and amino acid based infant formulas. Materials and Methods: Twenty-four hour-cultured S. mutans and microtiter plates were used for analysis. At microtiter plate, 190 μL of modified TSB broth containing SBF, MBF, amino acid-based infant formulas, and dairy whitener as a positive control in five dilutions (1:05, 1:10, 1:20, 1:40, and 1:80) was added into respective wells. 10 μL of cultured S. mutans was inoculated into the wells and incubated at 37°C for 24 h. Biofilm was washed, fixed, and stained with crystal violet. The absorbance was measured to evaluate biofilm growth, which was read as optical densities in a spectrophotometer at 490 nm and was tabulated. Results: Three infant formulas tested showed S. mutans biofilm growth. Minimal biofilm growth was observed in amino acid-based formula at 1:80 dilution, followed by MBF at 1:10 dilution and SBF at 1:80 dilution. Conclusion: Commercially available infant formulas favor S. mutans biofilm growth and can be cariogenic. Amino acid-based infant formula was found to have less S. mutans biofilm growth than MBF and SBF.






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  2005 - Journal of Indian Society of Pedodontics and Preventive Dentistry | Published by Wolters Kluwer - Medknow 
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