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Journal: MEDICAL JOURNAL OF THE ISLAMIC REPUBLIC OF IRAN (MJIRI) | Year:0 | Volume:31 | Issue:1 | Start Page:0 | End Page:0

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Title

Study of Porphyromonas gingivalis in periodontal diseases: A systematic review and meta-analysis

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Abstract

 Background: The mouth cavity hosts various types of anaerobic bacteria including Porphyromonas gingivalis, which causes periodontal inflammatory diseases. P. gingivalis is a gram-negative oral anaerobe and is considered as a main etiological factor in Periodontal Diseases. Several studies have reported a relationship between P. gingivalis in individuals with Periodontal Diseases and a critical role of this bacterium in the pathogenesis of Periodontal Diseases. The present study aimed at estimating this probability using a meta-analysis. Methods: We searched several databases including PubMed, Scopus, Google Scholar, and Web of Science to identify case-control studies addressing the relationship between P. gingivalis with Periodontal Diseases. A total of 49 reports published from different countries from 1993 to 2014 were included in this study. I² (heterogeneity index) statistics were calculated to examine heterogeneity. Data were analyzed using STATA Version 11. Results: After a detailed analysis of the selected articles, 49 case-control studies with 5924 individuals fulfilled the inclusion criteria for the meta-analysis. The healthy controls included 2600 healthy individuals with a Mean± SD age of 36. 56± 7. 45 years. The Periodontal Diseases group included 3356 patients with a mean age of 43. 62± 8. 35 years. There was a statistically significant difference between P. gingivalis in periodontal patients and healthy controls; 9. 24 (95% CI: 5. 78 to 14. 77; P = 0. 000). In the other word, there was a significant relationship between the presence of P. gingivalis and Periodontal Diseases. Conclusion: Analyzing the results of the present study, we found a strong association between the presence of P. gingivalis and Periodontal Diseases. This result suggests that another research is needed to further assess this subject.

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