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General information of the related studies.
| Reference | Location | Tea Type | Brands | Sample | Time | Fluoride Concentration (mg/L) | SD | ||
|---|---|---|---|---|---|---|---|---|---|
| Type | Number | Year | Mean | Min | Max | ||||
| [23] | Tehran-Iran | Tea Bag | 15 | 2008 | 0.26 | 0.13 | 0.44 | 0.01 | |
| [26] | Tehran-Iran | Tea Bag | 6 | 36 | 2010 | 2.02 | 0.7 | 3.27 | 1.06 |
| [27] | Qom-Iran | Tea Bag | 4 | 2012 | 1.28 | 1.11 | 1.44 | ||
| [28] | Tehran-Iran | Tea Bag | 10 | 2006 | 1.63 | 0.53 | 2.6 | 0.16 | |
| [17] | Hamadan-Iran | Tea Bag | 22 | 2012 | 1.139 | 0.48 | 2.3 | ||
