Cavities (also known as caries or tooth decay) are one of the most common chronic diseases of childhood in the world. Untreated cavities can cause pain and infections that may lead to problems with eating, speaking, playing, and learning a questionnaire will be conducted among 3 - 12 years old children in Damascus province and the questionnaire will be answered by the caregiver, within this research, we will study the factors which affect the dental health among children ( financial, nutrition, preventions procedures, knowledge, the educational degree for the parents)