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Dental Research Journal، جلد ۱۲، شماره ۶، صفحات ۰-۰
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عنوان انگلیسی Effect of milk and yogurt on streptococcus sobrinus counts and caries score in rats
چکیده انگلیسی مقاله 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 signifi cance 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 signifi cant 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 signifi cantly reduced caries score of fi ssured 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 fi ssured surfaces. Key Words: Dental caries, milk, Streptococcus sobrinus , yogurt
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نویسندگان مقاله مریم قاسم پور | maryam ghasempour


رمضان رجب نیا | ramazam rajabnia


منوچهر اشرف پور | manouchehr ashrafpour


atiyyeh احسانی | atiyyeh ehsani


علی اکبر مقدم نیا | ali akbar moghadamnia


سمانه قره خانی | samane gharekhani


الهه فردوسی شاهاندشتی | elaheh ferdosi shahandashti


مقداد باقری | meghdad bagheri


نشانی اینترنتی http://drj.mui.ac.ir/index.php/drj/article/view/1752
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زبان مقاله منتشر شده en
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