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Table 1 The division and classification of articles in relation to the year of publication and the type of study presented in the article

From: Application of probiotics as a constituent element of non-surgical periodontal therapy for cases with chronic periodontitis

Articles

2018–2019

2020–2021

2022–2023

Total

Review

6–26%

2–9%

8–35%

In vivo

4–17%

7–30%

4–17%

15–65%

Total

4–17%

13–57%

6–26%

23–100%