Persistence of a thumb/finger sucking habit can cause teeth to be pushed, create crowded, crooked teeth or bite problem.
Many children respond well to counseling and other may need habit breaking appliance to bring them out of the habit.
Most common habit observed is thumb sucking alongwith others like nail biting, tongue thrusting, mouth breathing, etc.
Major ill effect of this habit for prolonged period of time is change in position of teeth & shape of jaw leading to improper permanent teeth arrangement.
