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Effect of milk and yogurt on streptococcus sobrinus counts and caries score in rats

BACKGROUND: An anti-cariogenic diet containing probiotics can be effective in caries prevention. This animal study compared the effects of milk and yogurt on Streptococcus sobrinus counts and caries score. MATERIALS AND METHODS: A total of 36 male rats were infected with S. sobrinus (27,607) and div...

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Autores principales: Ghasempour, Maryam, Rajabnia, Ramazam, Ashrafpour, Manouchehr, Ehsani, Atiyyeh, Moghadamnia, Ali Akbar, Gharekhani, Samane, Shahandashti, Elaheh Ferdosi, Bagheri, Meghdad
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4696360/
https://www.ncbi.nlm.nih.gov/pubmed/26759594
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author Ghasempour, Maryam
Rajabnia, Ramazam
Ashrafpour, Manouchehr
Ehsani, Atiyyeh
Moghadamnia, Ali Akbar
Gharekhani, Samane
Shahandashti, Elaheh Ferdosi
Bagheri, Meghdad
author_facet Ghasempour, Maryam
Rajabnia, Ramazam
Ashrafpour, Manouchehr
Ehsani, Atiyyeh
Moghadamnia, Ali Akbar
Gharekhani, Samane
Shahandashti, Elaheh Ferdosi
Bagheri, Meghdad
author_sort Ghasempour, Maryam
collection PubMed
description BACKGROUND: An anti-cariogenic diet containing probiotics can be effective in caries prevention. This animal study compared the effects of milk and yogurt on Streptococcus sobrinus counts and caries score. MATERIALS AND METHODS: A total of 36 male rats were infected with S. sobrinus (27,607) and divided into three groups. Group A and B received 200 mL of milk and 100 g of yogurt per day, respectively, and a control group received 2.5 mL of NCP number 2 diet twice daily for 21 days. After killing the animals, their lower left jaws were removed and sonicated to quantify the colonies of S. sobrinus. Dental caries was scored using Keyes technique. Data were analyzed using ANOVA and Kruskal-Wallis, Mann-Whitney and Wilcoxon-Signed Rank tests. Statistical significance was set at P < 0.05. RESULTS: The mean (±standard error of the mean) of S. sobrinus colonies in the milk, yogurt and control groups were determined at 119666.67 (±20733), 46416.666 (±12846) and 163,250 (±33493), respectively. Microbial counts decreased in the yogurt group compared with the milk and control groups (P = 0.004 and P = 0.000; respectively). There were significant differences between caries scores of smooth surfaces in the milk and yogurt groups compared with the control group (P = 0.000 and P = 0.000, respectively). Both milk and yogurt significantly reduced caries score of fissured surfaces compared with controls (P = 0.004 and P = 0.000, respectively). CONCLUSION: Considering the limitations of this study, yogurt administration reduces S. sobrinus counts. In addition, yogurt and milk regimens reduce the caries scores of smooth and fissured surfaces.
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spelling pubmed-46963602016-01-12 Effect of milk and yogurt on streptococcus sobrinus counts and caries score in rats Ghasempour, Maryam Rajabnia, Ramazam Ashrafpour, Manouchehr Ehsani, Atiyyeh Moghadamnia, Ali Akbar Gharekhani, Samane Shahandashti, Elaheh Ferdosi Bagheri, Meghdad Dent Res J (Isfahan) Original Article BACKGROUND: An anti-cariogenic diet containing probiotics can be effective in caries prevention. This animal study compared the effects of milk and yogurt on Streptococcus sobrinus counts and caries score. MATERIALS AND METHODS: A total of 36 male rats were infected with S. sobrinus (27,607) and divided into three groups. Group A and B received 200 mL of milk and 100 g of yogurt per day, respectively, and a control group received 2.5 mL of NCP number 2 diet twice daily for 21 days. After killing the animals, their lower left jaws were removed and sonicated to quantify the colonies of S. sobrinus. Dental caries was scored using Keyes technique. Data were analyzed using ANOVA and Kruskal-Wallis, Mann-Whitney and Wilcoxon-Signed Rank tests. Statistical significance was set at P < 0.05. RESULTS: The mean (±standard error of the mean) of S. sobrinus colonies in the milk, yogurt and control groups were determined at 119666.67 (±20733), 46416.666 (±12846) and 163,250 (±33493), respectively. Microbial counts decreased in the yogurt group compared with the milk and control groups (P = 0.004 and P = 0.000; respectively). There were significant differences between caries scores of smooth surfaces in the milk and yogurt groups compared with the control group (P = 0.000 and P = 0.000, respectively). Both milk and yogurt significantly reduced caries score of fissured surfaces compared with controls (P = 0.004 and P = 0.000, respectively). CONCLUSION: Considering the limitations of this study, yogurt administration reduces S. sobrinus counts. In addition, yogurt and milk regimens reduce the caries scores of smooth and fissured surfaces. Medknow Publications & Media Pvt Ltd 2015 /pmc/articles/PMC4696360/ /pubmed/26759594 Text en Copyright: © 2015 Dental Research Journal http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Original Article
Ghasempour, Maryam
Rajabnia, Ramazam
Ashrafpour, Manouchehr
Ehsani, Atiyyeh
Moghadamnia, Ali Akbar
Gharekhani, Samane
Shahandashti, Elaheh Ferdosi
Bagheri, Meghdad
Effect of milk and yogurt on streptococcus sobrinus counts and caries score in rats
title Effect of milk and yogurt on streptococcus sobrinus counts and caries score in rats
title_full Effect of milk and yogurt on streptococcus sobrinus counts and caries score in rats
title_fullStr Effect of milk and yogurt on streptococcus sobrinus counts and caries score in rats
title_full_unstemmed Effect of milk and yogurt on streptococcus sobrinus counts and caries score in rats
title_short Effect of milk and yogurt on streptococcus sobrinus counts and caries score in rats
title_sort effect of milk and yogurt on streptococcus sobrinus counts and caries score in rats
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4696360/
https://www.ncbi.nlm.nih.gov/pubmed/26759594
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