Unilateral cross bite treated by corticotomy-assisted expansion: two case reports

Head Face Med. 2010 May 19:6:6. doi: 10.1186/1746-160X-6-6.


Background: True unilateral posterior crossbite in adults is a challenging malocclusion to treat. Conventional expansion methods are expected to have some shortcomings. The aim of this paper is to introduce a new technique for treating unilateral posterior crossbite in adults, namely, corticotomy-assisted expansion (CAE) applied on two adult patients: one with a true unilateral crossbite and the other with an asymmetrical bilateral crossbite, both treated via modified corticotomy techniques and fixed orthodontic appliances.

Methods: Two cases with asymmetric maxillary constriction were treated using CAE.

Results: In both cases, effective asymmetrical expansion was achieved using CAE, and functional occlusion was established as well.

Conclusions: Unilateral CAE presents an effective and reliable technique to treat true unilateral crossbite.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Female
  • Humans
  • Malocclusion / therapy*
  • Orthodontic Appliances*
  • Palatal Expansion Technique / instrumentation*
  • Treatment Outcome