Maxillary distraction osteogenesis and a Le Fort I osteotomy for severe maxillary retrognathia in cleft lip and palate: a case report

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Australasian Orthodontic Journal

Australian Society of Orthodontists

Subject: Dentistry, Orthodontics & Medicine

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ISSN: 2207-7472
eISSN: 2207-7480

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VOLUME 36 , ISSUE 2 (November 2020) > List of articles

Maxillary distraction osteogenesis and a Le Fort I osteotomy for severe maxillary retrognathia in cleft lip and palate: a case report

Peter V. Fowler * / Leon Steenberg / Tung Nguyen

Citation Information : Australasian Orthodontic Journal. Volume 36, Issue 2, Pages 205-210, DOI: https://doi.org/10.21307/aoj-2020-023

License : (CC BY 4.0)

Published Online: 20-July-2021

ARTICLE

ABSTRACT

Background: The correction of severe maxillary retrognathia in patients presenting with a cleft palate is challenging due to the complexity of the orthodontic preparation and the magnitude of the surgical movements required, along with the relatively high risk of relapse.

Materials and methods: An 18-year-old Caucasian male with a repaired left-side unilateral cleft lip and palate presented with concerns relating to poor facial aesthetics and poor occlusion. Multidisciplinary treatment involving orthodontics and orthognathic surgery were undertaken to correct the severe maxillary retrognathia. The correction involved the use of internal distraction osteogenesis followed by a conventional maxillary Le Fort I advancement with rotation.

Results: Pre- and post-treatment lateral cephalogram measurements showed the maxilla was advanced 18 mm, rotated clockwise producing a 9 mm increase in vertical dimension at A point and a 7 mm gain in relative arch width across the first molars. Follow-up CBCT superimpositions showed excellent skeletal stability of the achieved anterior-posterior, lateral and vertical corrections over a 2.4-year period, although there was some minor dental relapse.

Conclusion: This case report illustrates the successful use of orthodontics and distraction osteogenesis followed by conventional Le Fort I advancement surgery to correct a severely retrognathic maxilla in a patient with a repaired unilateral cleft lip and palate.

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REFERENCES

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