When one has a problem concerning the alignment of teeth such as crowding, protrusion, deep bite and cross bite (or mandibular prognathism), it causes biting and chewing difficulties and undesirably affects one's facial profile as well.

Orthodontics is a branch of dentistry that brings teeth into proper alignment to recover their functions and achieve facial balance.

 Orthodontics is also the art and science that treats a variety of dental irregularities (malocclusions) such as the above and restores the normal relationship of the teeth so they are brought into functional contact (occlusion), which grants you a beautiful smile. (The comparison of before/after treatment of dental irregularities)