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Updated: Aug 6, 2026
04:40
Impact of Common Fruit Juices and Toothbrushing on the Discoloration of Primary Teeth
Published on: March 27, 2026
[PH values and fluoride levels in some tea brands]
1Zakład Stomatologii Zachowawczej i Dzieciecej Akademii Medycznej we Wrocławiu ul. Kuźnicza 43/45, 50-138 Wrocław.
Annales Academiae Medicae Stetinensis
|August 9, 2006
Summary
Tea infusions show a wide pH range and significant fluoride content, confirming tea's role as a key dietary source of fluorine. This study analyzed 36 commercial tea brands for pH and fluoride levels.
Area of Science:
- Analytical Chemistry
- Food Science
- Public Health Nutrition
Context:
- Tea is a widely consumed beverage globally.
- Fluorine is essential for dental health and bone integrity.
- Understanding the fluorine content of common foods is crucial for dietary assessments.
Purpose:
- To quantify the pH and fluoride concentrations in various commercial tea brands.
- To assess the contribution of tea consumption to daily fluorine intake.
- To evaluate the significance of tea as a dietary fluorine source.
Summary:
- Thirty-six commercial tea brands were analyzed for pH and fluoride levels using a pH-meter and ion-selective electrode.
- Tea infusions exhibited pH values ranging from 3.85 to 6.45 (mean 5.24) and fluoride concentrations from 0.12 to 8.33 ppm (mean 1.32 ppm).
- Estimated fluorine intake from 500 mL of tea is 0.66 mg.
Impact:
- Provides data on the chemical composition of popular tea beverages.
- Highlights tea as a significant contributor to dietary fluorine intake.
- Informs public health recommendations regarding fluoride consumption and dental health.
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