Application of natural head position in orthodontics

Natural head position(NHP) is increasingly being used in cephalometry to predict congenital facial development tendency and design of orthognathic surgery because its higher stability and repeatability than the intracranial reference planes. So far, extensive studies using NHP in orthodontics, spinal surgery, and psychology have found that craniofacial deformities not only affect head posture, cervical and somatic posture, but also reflect aesthetic requirements of individuals. Meanwhile, it is related to the personality of the individuals, and corresponds to the basic goals(beauty, function, balance and stability) of orthodontic treatment. These findings further enhance the value of NHP. This article reviewed the origin, development of NHP and its application in orthodontics in recent years.