Yes, of course, it is the parents who are responsible for inculcating a good sense of dental hygiene amongst their children. It is the parents who guide their children and educate them on hygiene. Actually, children have a very limited knowledge about which toothpaste to use, how to brush etc. Such types of questions are answered and explained to children by adults in the family. So, parents must caution their children about the results of eating more sweets and the outcome in the form of teeth damage and decay. They will have to undergo the pain of drilling and fillings made by the dentists if they do so. It is also possible that some day they might need false teeth, if they do not take care of their teeth in their younger days. (Note This is a sample answer— your opinion may be different)