Is Fluoride Really Dangerous? Dentist Busts Viral Toothpaste Myths With Science-Backed Facts
Dentist Dr. Manasi Shimpi debunks common myths about fluoride in toothpaste, affirming its safety and benefits.
In an age dominated by wellness trends and viral misinformation, fluoride has increasingly become the subject of suspicion, with claims linking it to toxicity and systemic diseases. However, dental experts caution against fear-driven decisions and urge the public to rely on scientific evidence rather than social media narratives.
Speaking to ETV Bharat, Dr. Manasi Shimpi, Pediatric and Preventive Dentist at HNM Dental Centre in Delhi, clarified that fluoride is a naturally occurring mineral widely used in dentistry for its proven ability to strengthen tooth enamel, resist acid attacks, and reverse early tooth decay. Its benefits have been validated by decades of global research and clinical use.
Addressing concerns about toxicity, Dr. Shimpi explained that fluoride is safe when used in regulated amounts found in toothpaste and drinking water. “Toxicity occurs only at extremely high doses,” she said, adding that regular fluoride use can reduce cavities by up to 40 percent. Comparing everyday dental fluoride to industrial exposure is a common but misleading error.
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On claims linking fluoride to thyroid disorders or bone diseases, Dr. Shimpi noted that large-scale population studies have found no credible evidence supporting such associations. Fluoride in toothpaste is used topically and is meant to be spat out, while drinking water levels are closely monitored to remain within safe limits.
Dr. Shimpi also debunked the belief that children should avoid fluoride, stressing that age-appropriate use is critical for preventing early childhood cavities. She cited international guidelines recommending rice-grain-sized or pea-sized amounts depending on age, under adult supervision. “Skipping fluoride in childhood often results in more dental problems later,” she warned.
Finally, she cautioned against replacing fluoride toothpaste with herbal or fluoride-free alternatives, which may aid freshness but lack cavity-preventive benefits. “Fluoride remains one of the most effective, affordable, and well-researched tools we have for oral health,” Dr. Shimpi concluded, urging balanced, evidence-based dental care rather than extreme avoidance.
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