Significance of natural head position (NHP) in orthodontic diagnosis: A review

Facial dysmorphologies and malocclusion can be diagnosed and corrected through the use of cephalograms. However, maintaining a harmonious proportional relationship between facial landmarks remains essential for their correction. Cephalometric measurements are instrumental in the decision-making process of treatment, however, variations in the reference planes of an individual's face can always affect the cephalometrics as they change over time, ultimately affecting the treatment plan. This necessitates the use of a more reliable craniofacial referencing system, such as Natural Head Position (NHP), as the standard for cephalometric measurement.