Regular dental check-ups and preventive dental care such as, cleaning and fluoride teatment provide your child with "Smile insurance. it is advantageous for the first dental visit to occur within six months after the first tooth erupts. routine dental exams uncover problems that can be treated in the early stages, when damage is minimal and restorations may be small. When necessary, X-rays are taken to see how the teeth are developing and to spot hidden decay. Early examination and treatment may prevent the severity of malocclusions (or "bad bite") in the permanent teeth.