Most toothpaste commercials show a long, dramatic swirl covering the entire length of the toothbrush. But dentists say this is not only misleading, it could actually be harmful. A video shared by Dr. Miles Madison, Beverly Hills Periodontist & Dental Implant Specialist, has sparked fresh debate on how much toothpaste is truly safe. Paired with expert insights and existing dental research, one message is clear: more toothpaste does not mean better cleaning.The Big Problem: We’re Using Far More Toothpaste Than NeededAccording to Dr. Madison, almost 40% of people use an excessive amount of toothpaste, as shown by CDC findings. The amount typically seen in commercials? “That much is a hell no,” he says.His guidance on the correct amount is straightforward:For Babies and Toddlers (Teeth Eruption to Age 3)Use only a smear, roughly the size of a grain of rice.This tiny amount protects the teeth without overexposing children to fluoride, especially since young kids often swallow toothpaste instead of spitting it out.For Ages 3 and Above Use a pea-sized amount no more.This is enough to clean the teeth thoroughly without increasing health risks.Why Using Too Much Toothpaste Is Harmful Children under eight have teeth and gums that are still developing. Overusing toothpaste, particularly fluoride-containing toothpaste, can trigger dental fluorosis, a condition caused by excess fluoride intake. This results in yellow or white spots, enamel damage, pits, and an increased risk of cavities. Because children tend to swallow toothpaste, larger amounts can quickly push them into unsafe fluoride levels.Adults Aren’t Exempt From Risks EitherEven though adults are less likely to swallow toothpaste, using too much can still:Erode protective enamel over timeIrritate gumsTrigger sensitivityLeave residue that traps bacteriaEncourage people to brush too aggressivelyDentists also warn that people often rely too heavily on toothpaste while neglecting brushing technique — gentle circular motions, not force, and flossing.So What Does Toothpaste Actually Do?Toothpaste works by:Breaking down plaqueFighting bacteriaStrengthening enamelReducing inflammationNeutralizing acidsFreshening breathHowever, its benefits peak at a pea-size amount. Beyond that, the risks outweigh the rewards.The Safe Brushing Routine Dentists RecommendUse only the recommended amount for your ageChoose a fluoride toothpaste unless advised otherwiseUse a soft-bristled brushBrush for two minutesSpit out the foam; don’t rinse immediately for long-lasting fluoride protectionFloss dailySupervise young children while brushingUsed correctly, toothpaste prevents cavities, gum disease, and tooth loss, but used excessively, it can do more harm than good.
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