Oral habitsÂ in children are a major concern for the dentists and parents. A babyâ€™s mouth acts as a primary device for exploring the environment and his or her lips and tongues are stimulated by instinctive sucking. By random movements, babies discover their hands and toes and use these to continue the stimulation of their mouth and related structures. Normal habits grow out of these in the early developmental stages. However, some babies do not. They continued to retain these habits until they are toddlers and it created further dental problems.