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Objective:The aim of this study was to determine the quantitative changes in four oral microorganisms associated with periodontitis after consumption of L. reuteri DSM 17938 and L. reuteri ATCC PTA5289, and to investigate the changes in oral microorganisms after consumption of L. reuteri, which is known to help improve periodontitis.Methods: Subjects were 30 males and females aged 20 years or older who had periodontitis with a baseline pocket size of 4 mm or more in the buccal region and were asked to consume L. reuteri DSM 17938 and L. reuteri ATCC PTA5289 twice daily (morning and evening) for 1 month, and the results of oral bacteriological tests were compared using the real-time PCR method. Results:The results of this study showed that the amount of P. gingivalis, T. forsythia and T. denticola decreased statistically significantly after consumption compared to before consumption.However, in the case of A. actinomycetemcomitans, most of them were not detected in Koreans. Conclusion:The present study suggests that L. reuteri DSM 17938 and L. reuteri ATCC PTA 5289 can be used as a useful adjunct or alternative in non-surgical therapy and periodontal therapy, and the quantitative changes of the four oral microorganisms in this study were analysed and it was found that the quantities were statistically significantly decreased after administration compared to before administration.
Kim et al. (Sun,) studied this question.
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