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Green Tea for Oral Health: 5 Surprising Benefits

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Dr. Andreas

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Written by

Q.F. Nayibe Cubillos Morales


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Dr. Gustavo Assatourians D.D.S

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Green Tea for Oral Health: Surprising Effects You Should Know

Did you know that the routine consumption of green tea can bring enormous benefits to your health?  Various studies carried out by scientists dedicated to finding natural substances that are beneficial for oral health confirm this fact.

Green tea is much more than a soothing drink. Its relationship with the well-being of teeth and gums has been strengthened thanks to research that highlights everything from its ability to fight bacteria to reducing dental plaque and remineralizing teeth. This article will immerse you in the fascinating world of green tea, covering its impact on maintaining a healthy smile and everything from its antioxidant properties to its effectiveness in controlling cavities and periodontal disease.


The Science Behind the Oral Health Benefits of Green Tea

The Science Behind Green Tea for Oral Health

The catechins in this tea are the secret behind its extensive oral benefits. These compounds, known for their antioxidant properties, play a crucial role in fighting the bacteria that cause gum disease and cavities. Below, we present its 5 incredible effects on oral health:

1. Green tea to treat gum disease:

It has been shown that frequent consumption of this tea can reduce bleeding and inflammation of the gums, thus promoting healing in patients with periodontal disease and helping to regenerate lost tissue. Its consumption can defend against tissue inflammation by reducing the production of pro-inflammatory substances. The regenerative effects are attributed to compounds called polyphenols, which inhibit the production of some enzymes responsible for the degradation of dental support tissue and block the action of cells that reabsorb bone.

2. Green tea to combat tooth decay:

It can help control and prevent tooth decay in several ways:

● Alters the membrane of bacteria and inhibits enzymatic activity, controlling bacterial proliferation.

● Reduces the colonization of pathogenic bacteria.

● Prevents bacteria from adhering to tooth surfaces.

● Inhibits the transport of sugar and the production of acids by bacteria, in turn reducing the acidity of saliva.

● Contains a high concentration of fluorides, that help remineralize and strengthen teeth.

3. Green tea to reduce bad breath:

Green tea to reduce bad breath

It has important deodorant and disinfectant properties, thanks to the fact that it reduces bacterial growth. In addition, catechins can reduce the production of methyl mercaptan, one of the main sources of halitosis. This is why it is an excellent ally in the reduction of bad mouth odor.

4. Green tea to mitigate the effects of smoking:

It is well known that tobacco has oxidizing effects on oral tissues, altering the balance of oral conditions and inducing healing problems. Known to be a powerful antioxidant, it helps restore the oxidant-antioxidant balance in tobacco users who have quit the habit. Of note, some substances reduce stress and anxiety in people who have quit, positively contributing to staying away from future consumption.

5. Green tea to prevent oral cancer:

It contains polyphenols that act as powerful antioxidants, reducing the production of free radicals that severely damage DNA and predispose the appearance of malignant tumors. To date,  animal studies reveal the protective effect of this tea extract against oral cancer, especially when precursor lesions are present, or there is prolonged exposure to radiation. However, more studies are still required to propose this substance as a tool for routine use in the prevention and treatment of cancer.

How to Use Green Tea to Improve Oral Health?

Integrating it into your oral care routine can be as simple as enjoying a cup daily or using it as a natural mouthwash after brushing. For those suffering from swollen gums, applying it directly to the affected area can offer significant relief. Furthermore, its ability to kill bacteria in the mouth makes it an excellent remedy against oral thrush and mouth ulcers, thus ensuring complete oral health.


Green Tea VS Traditional Oral Care Products

Green Tea VS Traditional Oral Care Products

Although traditional oral care products are effective in keeping the mouth clean, this tea offers a natural alternative with additional benefits without the side effects of artificial chemicals. An investigation published in 2009 showed that green tea-based mouthwashes are not only as effective as chlorhexidine rinses, but they also lack the undesirable side effects. From reducing dental plaque to preventing gum diseases, green tea stands out for having, in addition to its antibacterial effects, a great capacity to remineralize teeth and combat bad breath. In short, this tea offers a comprehensive solution for oral health.

Precautions and Recommendations

Although this tea is an excellent supplement for oral health, it is important to consume it in moderation to avoid tooth discoloration. Additionally, people with specific medical conditions or fluoride sensitivity should consult a professional before incorporating it into their oral care routine. Remember that it complements, but does not replace, traditional oral hygiene practices such as brushing and flossing.


Green tea is not only a delicious and refreshing drink but also a powerful ally for oral health. From preventing gum disease to fighting bad breath and protecting against oral cancer, the oral benefits are extensive and well-founded. Incorporating this ancient beverage into your daily oral care routine can be a simple but effective step toward optimal oral health.

Frequently Asked Questions

Discover the power of green tea to keep your gums in optimal condition. Recent research indicates that better dental and gingival health could be within a cup of tea. One study, with 940 Japanese men, found that those who consumed at least one cup of green tea every day saw a significant reduction in gingival recession and gum bleeding.

Green tea is renowned for its role in enhancing gum health, thanks to its ability to lessen inflammation, inhibit bone loss and limit the proliferation of bacteria linked to gum disease. It boasts antioxidant, anticarcinogenic, antimicrobial, and anti-inflammatory properties.

Matcha, without a doubt, is positioned as a powerful ally for oral health, capable of combating various common dental and oral problems. Although enjoying matcha in its pure form is already a pleasure, integrating it into a delicious coffee with almond milk and vanilla essence will elevate your experience to the peak of well-being.

Consuming one or two cups of green tea daily can be a natural solution to combat gingival retraction. Thanks to its antibacterial properties, green tea is an excellent home remedy for receding gums and other dental problems.



1. Ware, M., RDN, & L.D. (Oct 28, 2021). 5 benefits of green tea backed by science.

2. Green tea: Overview, uses, side effects, precautions, interactions, dosing and reviews. (2020).

3. Dds, G. A. (Jun 27, 2022). Diet and oral health: 8 essential foods for the teeth by CiDentist. Channel Islands Family Dental Office | Dentist In Ventura County.

4. Snider, J. (2009). Green tea may promote periodontal health. The Journal of the American Dental Association, 140(7), 838.

5. Examined, B. G. A. T. E. (2010). Green Tea And Oral Health Examined In Study. British Dental Journal, 208(9).

6. Mazur, M., Ndokaj, A., Jedlinski, M., Ardan, R., Bietolini, S., & Ottolenghi, L. (2021). Impact of Green Tea (Camellia Sinensis) on periodontitis and caries. Systematic review and meta-analysis. Japanese Dental Science Review, 57, 1-11.

7. Chatterjee, A., Saluja, M., Agarwal, G., & Alam, M. (2012). Green tea: A boon for periodontal and general health. Journal of Indian Society of Periodontology, 16(2), 161–167.

8. Moghbel, A., Farajzadeh, A., Aghel, N., Agheli, H., & Raisi, N. (2009). Formulation and evaluation of green tea mouthwash: A new, safe and nontoxic product for children and pregnant women. Toxicology letters, 189(1), S257-S273. 10.1016/j.toxlet.2009.06.371

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