Thinking upon the question whether to bring a child to the dental clinic, it is known that early ages are taken as the most appropriate time for orthodontic treatment. Considering the fact that respiratory function disorders start causing deformities at the age of 6, it is possible to determine the required age for a child to meet with an orthodontist. Developmental, hereditary, innate and functional disorders are all conditions which can be treated with early intervention. For example; if a child with thumbsucking habit gets treated immediately instead of letting the child to continue to habit for 2 years, the adverse affects can be prevented. If the child has only crowding teeth, the most ideal time for orthodontc treatment is the permanent dentition period. Generally, the ideal age is 10 for girls and 11 for boys.