Impact of Green Tea (Camellia Sinensis) on periodontitis and caries. Systematic review and meta-analysis

Mazur M, Ndokaj A, Jedlinski M, Ardan R, Bietolini S, Ottolenghi L · Japanese Dental Science Review · 2021 November

DOI 10.1016/j.jdsr.2020.11.003

Objective

To investigate the effects of green tea on managing periodontitis and caries through a systematic review of clinical trials.

Conclusions

The study found that green tea treatment had positive effects in reducing gingival inflammation, plaque index, gingival bleeding index, and bleeding on probing compared to control groups. It also showed positive effects in reducing clinical attachment loss and pocket probing depth.

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Insights

Green tea treatment has shown potential in improving oral hygiene and gingival health, and reducing periodontitis and caries.

The methodology of this research consisted of systematic literature review focusing on clinical trials that evaluated the impact of green tea on managing periodontitis and caries. Various databases including MedLine (PubMed), Scopus, and the Cochrane Library were utilized for gathering relevant studies. Eighteen suitable studies were selected, encompassing 870 subjects. The results reveal a noticeable positive effect from green tea treatment. This effect was realized in the reduction of gingival index, plaque index, gingival bleeding index and bleeding on probing when compared to a control group. It was also noted that when considered among chlorhexidine control groups, green tea showed a slight negative effect. There was additionally a significant positive effect seen in the reduction of clinical attachment level and probing pocket depth with green tea treatment.