Piezocision as an adjunct to orthodontic treatment of unilateral posterior crossbite

Saudi Med J. 2017 Apr;38(4):425-430. doi: 10.15537/smj.2017.4.16390.


Piezocision (corticotomy) is a minimally invasive approach that involves micro-incisions, piezoelectric incisions, and selective tunnelling for soft or hard tissue grafting. Piezocision has many uses in orthodontics, but its uses in cross-bite cases are limited. This case report illustrates the outcomes of a 19-year-old female patient with unilateral cross-bite that was treated with a minimally invasive piezocision with bone grafting in the affected side. In addition, she also had a functional shift, severe crowding, and mid-line shift. Therefore, the shift was eliminated using a quad helix expansion, she was treated with a fixed appliance, and a bimaxillary extraction of the first premolars was performed. The patient followed-up at 18 months, and the occlusion was stable with a pleasant profile. Piezocision can be used as an adjunct to the orthodontic treatment of adults to facilitate the treatment of complicated cases.

Publication types

  • Case Reports

MeSH terms

  • Bone Transplantation
  • Cementation
  • Dental Arch / surgery*
  • Female
  • Humans
  • Malocclusion / surgery*
  • Orthodontics, Corrective / methods*
  • Piezosurgery / methods*
  • Radiography, Panoramic
  • Tooth Extraction
  • Young Adult