Orthodontics is the diagnosis, prevention, interception, and correction of irregular teeth, as by means of braces. It helps teeth to grow straight. Orthodontist is a dentist who is specialized in straightening the teeth which are out of shape and improper bites. They are also specialized in adjusting the misaligned jaws. The study of this alignment of teeth and jaws is dealt in orthodontics. It deals with diagnosis, prevention and re-alignment of teeth and jaws i.e., dentists for braces. Orthodontics is the branch of dentistry which corrects teeth and jaws that are not positioned properly. Teeth that are not in correct fit causes tooth decay and cause headaches as they give stress is applied on muscles while chewing. Orthodontic treatment helps to maintain healthier mouth and often gives a pleasing appearance.