Around the age of 6, the first teeth start to gradually be replaced by adult teeth. During that time, children have a mix of little and big teeth so their smiles need special care. It is also about the age they start to take more and more charge of cleaning their own teeth. Aquafresh Big Teeth toothbrush was specially designed for this age range with the features that help take great care of their pearly whites as they become more independent while brushing. A mixed bristle length helps clean mixed teeth surfaces and in between the teeth, while the padded brush head helps to protect sensitive gums, as your kid starts to brush on their own.