Agree with "不需要.1岁以后再加好了." "我也问过我的牙医.他觉得3岁以后看牙会比较好." I asked my own dentist too. He said he'd only accept patients at least 3 years old. Are you sure your dentist said "3岁以后看牙会比较好"? Anyway, I use 儿童牙医 for my daughter. They are amazing. My daughter followed (and still follows) their directions to the letter. It's a completely different story at home.