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Abstract

The advancement of technology has brought some successful and progressive innovative methodologies in treating orthodontic conditions such as unilateral cross-bite, protrusive malocclusion, molar derotation, dental asymmetry and premature loss of primary molar teeth. The Trans-Palatal Arch (TPA) is such innovative orthodontic treatment methodologies which have shown impressive treatment results. It comprises of stainless-steel bands around the posterior molar teeth and a looped wire that crosses the mouth palate without touching it. This review covers properties, uses and limitation of TPA in treating orthodontic conditions. Regardless of some limitations in the clinical use of TPA yet it is widely recommended for its various functions as advantages outweigh its limitations.