study will be directed to evaluate two approaches of microosteoperforations during skeletally anchored maxillary expansion

Dento-skeletal effects of skeletally anchored maxillary expander assisted with two approaches of microosteoperforations.

Inclusion Criteria:

• All patients should satisfy the following criteria:-

  1. An age range from 18-22.
  2. Transverse maxillary deficiency.
  3. Crossbite (unilateral or bilateral)
  4. No previous orthodontic treatment.
  5. Good oral and general health.
  6. No systemic disease/ medication that could interfere with OTM.

Exclusion Criteria:

1. History of systemic and medical illness.
2. History of extraction of permanent teeth.
3. Previos orthodontic treatment.
4. Poor oral hygiene or periodontally compromised patient.
5. Patient with craniofacial anomaly or previous history of trauma,bruxism or parafunctions.