Effectiveness of Two Maxillary Expanders in Improving the Transverse Skeletal and Dental Dimensions in Patients With Cleft Lip and Palate

Effectiveness of Two Rapid Maxillary Expanders (Quadhelix vs Hyrax) in Improving the Transverse Skeletal and Dental Dimensions in Patients With Cleft Lip and Palate: A Randomized Clinical Trial

This randomized controlled trial is designed to compare between quadlelix appliance vs hyrax expander regrading the their effectiveness in maxillary expansion in patients with cleft.

Inclusion Criteria:

• Mixed dentition stage;
• Both males and females;
• Lip repair performed between 3 and 6 months of age and palate repair performed between 12 and 24 months of age;
• Presence of maxillary constriction and posterior crossbite and need for maxillary expansion previous to the secondary bone graft;
• Permanent first maxillary molars present;
• Good periodontal health;
• No previous orthodontic treatment; and

Exclusion Criteria:

• Presence of a syndrome in companion with the present cleft defect.
• Previous secondary alveolar bone grafting.
• Taking medications affecting growth.