Baby Dental, How Long Should You Brush Your Child Teeth.
Question: I have a two year old and just wondering about what age should he be able to brush his own teeth?
Answer: It can take many years before a child develops the fine motor coordination need to do a good job at brushing their teeth. Some dentist advises that parent brushes or help a child to brush their teeth until the child can neatly write his or her own name. You will need to use your own judgement but consider between ages 6 and 8 as the time for your child to take on the job of keeping their teeth clean and healthy.