Abstract
Background:
The correction of severe anterior open bite is technically challenging, often requiring the use of complex orthodontic mechanics and/or orthognathic surgery and has a relatively high risk of relapse. A marked reverse curve of Spee in the lower arch presents additional challenges when correcting a severe anterior open bite.
Methods and Materials:
A 22.2 year-old Caucasian male presented with concerns relating to poor anterior occlusion associated with a 1.3 cm anterior open bite. There was an accentuated reverse curve of Spee to the lower arch, an increased maxillary-mandibular plane angle and increased lower face height. Multidisciplinary treatment involving the use of segmental anterior mandibular distraction to level the curve of Spee prior to undertaking a Le Fort I posterior maxillary impaction is described in this case report.
Results:
Long term post treatment records showed stable anterior open bite correction.
Conclusions:
This case report illustrates the successful use of segmental anterior mandibular vertical distraction followed by conventional Le Fort I posterior impaction surgery to correct a severe anterior open bite associated with an accentuated reverse curve of Spee and high maxillary-mandibular plane angle.
The correction of severe anterior open bite is technically challenging, often requiring the use of complex orthodontic mechanics and/or orthognathic surgery and has a relatively high risk of relapse. A marked reverse curve of Spee in the lower arch presents additional challenges when correcting a severe anterior open bite.
Methods and Materials:
A 22.2 year-old Caucasian male presented with concerns relating to poor anterior occlusion associated with a 1.3 cm anterior open bite. There was an accentuated reverse curve of Spee to the lower arch, an increased maxillary-mandibular plane angle and increased lower face height. Multidisciplinary treatment involving the use of segmental anterior mandibular distraction to level the curve of Spee prior to undertaking a Le Fort I posterior maxillary impaction is described in this case report.
Results:
Long term post treatment records showed stable anterior open bite correction.
Conclusions:
This case report illustrates the successful use of segmental anterior mandibular vertical distraction followed by conventional Le Fort I posterior impaction surgery to correct a severe anterior open bite associated with an accentuated reverse curve of Spee and high maxillary-mandibular plane angle.
| Original language | English |
|---|---|
| Pages (from-to) | 444-450 |
| Number of pages | 7 |
| Journal | Journal of Orthodontics |
| Volume | 48 |
| Issue number | 4 |
| Early online date | 24 Mar 2021 |
| DOIs | |
| Publication status | Published - Dec 2021 |
Bibliographical note
Funding Information:The authors wish to thank the late Mr James Worthington for his assistance during the surgery. The author(s) received no financial support for the research, authorship, and/or publication of this article.
Publisher Copyright:
© The Author(s) 2021.
Keywords
- Vertical segmental anterior mandibular distraction
- Anterior open bite
- Reverse curve of Spee