Electronic Thesis and Dissertation Repository

Nasal Morphology As A Predictor Of Craniofacial Growth Direction

Christos Papadopoulos, The University of Western Ontario

Abstract

It is important for an orthodontist to predict growth related changes and thereby appropriately time orthodontic treatment using the vertical indicators currently available. A potential predictor of craniofacial growth direction that has been discussed yet remains scientifically unexplored is nasal morphology. The objectives of this study are to determine if a difference in pre-adolescent nasal contour exists between post-adolescent normodivergent and hyperdivergent subjects, and if nasal contour morphology in pre-adolescent females is a reliable indicator of future craniofacial growth direction. A significant difference in pre-adolescent nasal contour morphology was found between normodivergent and hyperdivergent groups. A pre-adolescent nasal contour elevation >0.75mm may be indicative of future vertical craniofacial growth direction. However, pre-adolescent nasal contour morphology was judged to be a fair-to-poor diagnostic indicator of future craniofacial growth direction and should not be relied upon in craniofacial growth direction predictions.