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2017 Annual Session Conference

AS17B57B - Genetic Factors Influencing Normal Facial Growth During Puberty

Apr 25, 2017 1:45pm ‐ Apr 25, 2017 2:15pm


Even when we carefully examine a patient’s family history, past and current growth measurements, and a set of predetermined norms to predict their future craniofacial growth, it is no secret that many clinicians still encounter unexpected growth patterns in patients with challenging-to-treat malocclusions. This can especially be true when treating phenotypes that have a familial/genetic contribution, such as Class III malocclusion. The genes encoding Insulin-Like Growth Factor 1 (IGF1), Growth Hormone Receptor (GHR), and Aromatase are important growth-related genes that can influence both facial and overall body growth, especially during the pubertal growth spurt. This lecture will provide new insights into how specific genetic variations in growth-related genes may be associated with different degrees of normal facial growth, and how a panel of markers may one day aid in improved growth predictions and orthodontic treatment planning.

Learning Objectives:

  • Discuss the basis of patient-specific growth predictions (i.e. more precise estimates of facial growth).
  • Describe how genetic variation in a number of growth-related genes may contribute to the shape and size of facial features.
  • Recognize the hurdles that we face when applying genetic findings to clinical care and outcomes.


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