Hello Dr, I want to ask about cleaning teeth, and mouth.my son is almost 20 months old now but he doesn't allow me to clean his teeth and tongue wotg damp cloth or brush or tongue cleaner, he bites a lot , he has many teeth now. even if I distract him with something, for mouth he doesn't like it at all, if I give brush to him he squeeze it inside mouth with his teeth and suck it and then throw when the taste of toothpaste is gone.please suggest, his tongue has started keeping that white part , it's not too much but how to clean is my biggest issue.please help.