A lot of times, people believe that because a child will lose its teeth, then there's no point in brushing them or caring for them - this couldn't be further from the truth. Children's oral hygiene is critical for their over-all wellbeing, as well as for their permanent teeth; so brush your child's teeth twice a day for 2 minutes with a round and gentle toothbrush, and fixate on the molars as they are the most likely to become damaged. Move the brush in gentle circles to clean the outer sides of the teeth and gums, that way they will pick up this good habit and keep it with them for life.