1: Using too much toothpaste may increase oral cancer risk.
Several active ingredients in toothpaste raise concerns. The widely used chemical "sodium lauryl sulfate" is believed to potentially cause gastrointestinal disorders and liver toxicity, increasing susceptibility to oral ulcers and oral cancer. Abrasives in toothpaste are also thought to damage gums, making them more vulnerable to injury. Therefore, avoid using excessive amounts of toothpaste.
II: Improper use of fluoride toothpaste can cause dental fluorosis.The line between fluoride's anti-cavity benefits and its toxicity is very narrow. Excessive fluoride intake can cause spots on teeth, known as dental fluorosis, with children being the most common victims. This is because children often lack full control over swallowing, making them more likely to accidentally swallow fluoride toothpaste while brushing, leading to increased fluoride intake.Since toothpaste packaging typically lacks usage instructions, target demographics, or dosage guidelines, it often leads to adults and children sharing the same toothpaste. Additionally, many people follow TV commercials by squeezing an excessive amount of toothpaste onto their brushes.
Experts advise consumers to use no more than 1 cm of fluoride toothpaste per application. Children should ideally avoid fluoride toothpaste altogether or use it cautiously under parental supervision.Additionally, fluoride is a highly toxic substance. Excessive absorption can cause fluorosis. National regulations stipulate that free fluoride in fluoridated toothpaste should range between 400–1200 ppm. Particular caution is needed for children under 3–4 years old, as they may swallow 1/8–1/4 of the toothpaste, making fluoride toothpaste unsuitable for them.
Third: Children should not use high-foam toothpaste.
Children should avoid using high-foam toothpaste. Toothpaste is categorized into high-foam, medium-foam, and low-foam types, with foam volume determined by soap content. High-foam toothpaste contains higher soap levels, which can irritate oral mucosa during use.
Oral health experts recommend alternating toothpaste products based on seasonal changes and physical conditions, rather than consistently using the same brand or type. In advanced Western countries, over 80% of consumers use separate toothpaste for morning and evening routines, and they also maintain regular dental check-ups.Research indicates that most oral issues stem from bacteria. While human saliva possesses natural antibacterial properties, daytime saliva production is 3-4 times higher than at night, effectively suppressing bacterial growth. During sleep, reduced salivary secretion leads to oral dryness and acidification, failing to inhibit bacterial proliferation and triggering various oral problems.
Numerous medicated toothpastes—such as desensitizing, anti-inflammatory, deodorizing, and hemostatic varieties—have emerged, heavily promoted through widespread advertising. Many people treat these as miracle cures for oral diseases, using them regardless of whether they have dental issues. This practice is inadvisable.Oral bacteria fall into two categories: pathogenic and non-pathogenic. They maintain a delicate "ecological balance" within the mouth through mutual restraint.
Long-term use of medicated toothpaste with strong antibacterial properties not only causes pathogenic bacteria to develop resistance but also suppresses and kills normal oral flora while targeting pathogens. This disrupts the oral "ecological balance," potentially triggering new oral diseases and infections.Additionally, some medicated toothpastes contain alkaloids and highly irritating substances. Prolonged use not only damages the delicate oral mucosa but also causes persistent irritation, leading to inflammation of the gums, mouth, and tongue—resulting in gingivitis, stomatitis, glossitis, and other conditions.Individuals with allergic asthma may experience wheezing and gastrointestinal discomfort due to the pungent odor of medicated toothpaste. Some medicated toothpastes also contain dyes that, with prolonged use, can stain tooth surfaces, causing teeth to lose their luster and affecting their appearance.
For individuals with oral health issues, alternating between fluoride toothpaste and medicated toothpaste is advisable. For middle-aged and elderly patients with both cavities and periodontal disease, selecting fluoride products and herbal formulations for morning and evening use is recommended. Those experiencing sensitivity to hot or cold temperatures should combine desensitizing anti-acid products with regular fluoride toothpaste.