Simple things people often get wrong
Children use too much toothpaste
dr Gao Jye Teh, a PhD student at King’s College London, explained that the right amount of brushing for a child over the age of three is just one pea.
In children with baby teeth, using too much toothpaste leads to excess intake of fluoride, known as dental fluoride, which causes cosmetic problems with tooth development. You’ll also see yellow spots, brown spots, and cavities.