How is dental fluorosis formed?

In general, dental fluorosis may be caused by factors such as diet, improper use of fluoride toothpaste, air pollution, poisoning, or diabetes. Treatment options include routine care, medication, porcelain crowns, cold-light teeth whitening, and dental veneers, which should be conducted under the guidance of a healthcare professional. Specific analyses are as follows:

1. Diet

Long-term consumption of water with high fluoride content or high-fluoride foods—such as tea or seafood from certain regions—can lead to fluoride accumulation in the body, thereby affecting normal tooth development and mineralization. Reducing intake of high-fluoride foods and improving dietary habits are recommended preventive measures. Porcelain crowns, performed under the guidance of a qualified dentist, are a dental restoration technique in which metal- or ceramic-made caps are placed over teeth to cover fluorotic spots and restore natural tooth color. The reference price is generally 1,000–3,000 yuan per tooth. Improvement can typically be seen within about one hour, although potential side effects may include gum irritation or crown detachment.

2. Improper Use of Fluoride Toothpaste

Fluoride toothpaste is highly effective in preventing dental caries; however, improper use—such as excessive application or accidental ingestion—may result in excessive fluoride accumulation in the body, leading to dental fluorosis. It is important to choose an appropriate type of toothpaste in daily life. Cold-light teeth whitening, performed under professional supervision, involves applying a bleaching agent to the tooth surface and using a special cold light source to activate the agent, promoting its reaction with tooth pigments to achieve whitening. The reference cost ranges from 2,000 to 5,000 yuan per session. Results are usually visible within 30–60 minutes, but possible side effects include tooth sensitivity and gum irritation.

3. Air Pollution

Prolonged inhalation of air with high fluoride levels may cause fluoride to accumulate in the body, negatively affecting tooth development and mineralization. Improving the living environment and reducing exposure to airborne pollutants are recommended. Dental veneers, applied under professional guidance, are a cosmetic technique involving thin layers of material bonded to the tooth surface to mask fluorotic stains and defects, restoring the teeth’s natural appearance. The reference price is generally 500–800 yuan per tooth, with visible improvement typically occurring over 3–5 weeks. Possible complications include tooth sensitivity, veneer detachment, or damage.

4. Poisoning

Fluoride poisoning is a serious cause of dental fluorosis. Long-term exposure to or ingestion of excessive fluoride—such as from industrial chemicals or pesticides—can lead to toxic accumulation in the body, resulting in fluorosis and other health issues. Symptoms may include nausea, vomiting, and abdominal pain. Treatment should follow medical advice and may include medications such as calcium gluconate injection, oyster shell calcium carbonate chewable tablets, and vitamin C injection.

5. Diabetes

Diabetes is a chronic condition characterized by high blood glucose levels. Elevated blood sugar in diabetic patients increases sugar content in saliva, providing abundant nutrients for bacteria and accelerating demineralization and destruction of tooth structure, thereby indirectly contributing to dental fluorosis. Typical symptoms may include increased thirst, hunger, urination, and weight loss. Patients should follow medical guidance and take prescribed medications such as metformin hydrochloride tablets, acarbose tablets, and glibenclamide tablets.

It is recommended to visit a reputable hospital and undergo procedures under the supervision of qualified professionals to ensure effectiveness and safety. In daily life, individuals should avoid prolonged exposure to high-fluoride environments, reduce fluoride intake, maintain good oral hygiene, and have regular dental checkups to prevent dental fluorosis at its source.