Background: Dental crowding, also called overcrowding, is a condition in which there is not enough space in the mouth for the steady growth of permanent teeth. Common problems that crowding can cause for a person include difficulty chewing food, speech problems, tooth decay, enamel loss, premature tooth loss, pressure on the jaws and pain, gingival resorption, and tenderness. Crowding always creates an unpleasant appearance for a person and even causes a person to be isolated from society and reduce self-confidence due to an ugly appearance. Crowding raises serious functional and aesthetic concerns for many patients.