Corticotomy-assisted Slow Maxillary Expansion With Bone Allograft Assessed With Cone Beam Computed Tomography in Young Adults
Abstract
Maxillary expansion was performed for adult female patients suffering from maxillary constriction with bilateral posterior cross-bite using fixed Quad-helix appliance, for about 8 months. The appliance was delivered and activated at the day of corticotomy and bone graft. The activation was made half-molar unit each side. The patient was scheduled each month to activate the appliance or reactivate if needed. Corticotomy was performed at area of maxillary 1st premolar, 2nd premolar and first molar. Cone beam computed tomography was performed, before appliance activation and corticotomy, at the end of expansion (8 months) and after finishing orthodontic treatment (average 2.5 years from start of treatment).
Conditions: Posterior Cross Bite.
Primary outcome: Inter-arch distance.
Enrollment: 4 participants.
How strong is the evidence?
Evidence Hub reads this as a clinical trial, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 4 participants or records.
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