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. 2006 Jul;130(1):8-17.
doi: 10.1016/j.ajodo.2004.11.035.

Long-term skeletal and soft-tissue responses after advancement genioplasty

Stefan Shaughnessy  1 , Karim A Mobarak, Hans Erik Høgevold, Lisen Espeland
Affiliations

Long-term skeletal and soft-tissue responses after advancement genioplasty

Stefan Shaughnessy et al. Am J Orthod Dentofacial Orthop. 2006 Jul.

Abstract

Introduction: The objectives of this cephalometric study were to assess the skeletal stability of advancement genioplasty 3 years after surgery and to evaluate the predictability of soft-tissue changes.

Methods: The subjects comprised 21 consecutive patients who had no additional orthognathic surgical procedures. Lateral cephalograms were taken at 5 times: immediately preoperative, immediately postoperative, 6 months postoperative, and 1 and 3 years postoperative.

Results: Mean surgical advancement at pogonion was 8.4 mm. Three years after surgery, mean relapse at pogonion was 8% of the surgical advancement. Part of this change was most likely due to bone remodeling. No patient demonstrated a clinically significant postoperative change at pogonion. The soft tissue of the chin was found to follow bony movement in a ratio of 0.9:1. Great individual variability was observed. The mentolabial fold depth increased as a result of the treatment. Effects of advancement genioplasty on the lips were small.

Conclusions: A prediction ratio based on long-term skeletal changes is likely to generate an estimate that is more appropriate to present to the patient.

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Comment in

  • Skeletal and soft-tissue response to genioplasty.
    Niamtu J. Niamtu J. Am J Orthod Dentofacial Orthop. 2006 Nov;130(5):565-6; author reply 566-7. doi: 10.1016/j.ajodo.2006.09.027. Am J Orthod Dentofacial Orthop. 2006. PMID: 17110248 No abstract available.