Effectiveness of Two Mini-screws Supported Hyrax for Maxillary Expansion in Early Adulthood

Transverse Maxillary Deficiency Clinical Trial

Official title: Effectiveness of Two Mini-screws Supported Hyrax for Maxillary Expansion in Early Adulthood: A Randomized Control Trial.

Status Active, not recruiting

Clinical Trial Summary

The study aiming at evaluation of the Skeletal and Dento-alveolar expansion in adult patents using Two Mini-screws Supported Hyrax compared with untreated control group.

Clinical Trial Description

Methodology:

• Basic orthodontic record will be taken.

• impression with bands on upper first molars will be taken.

• Two eyelets will be soldered to the body of the hyrax appliance (size 10, Dentaurum, Germany).

• CBCT will be taken while patient wearing 1 mm thickness vacuum on the lower arch to dis-occlude both arches.

• Delivery, check the retention and fitness of the appliance.

• Cementation of the appliance using band cement(compomer).

• Using 3M contra-angle driver, the screws (Tomas screw size 10, Dentaurum, Germany) will be loaded and inserted.

• Activation of the appliance by opening it two turns immediately, followed by two turns everyday till cross bite correction or appearance of midline diastema.

• Closure of the device, and leave the appliance in-situ for five months as a retention.

• Post-expansion CBCT will be taken and continue fixed orthodontic treatment. Outcome:

skeletal and dento-alveolar expansion will be evaluated ;

Related Conditions & MeSH terms

• Transverse Maxillary Deficiency

• NCT number: NCT06130748
• Study type: Interventional
• Source: Cairo University
• Status: Active, not recruiting
• Phase: N/A
• Start date: April 2, 2023
• Completion date: June 2, 2024