Effectiveness of Two Mini-screws Supported Hyrax for Maxillary Expansion in Early Adulthood
- Conditions
- Transverse Maxillary Deficiency
- Registration Number
- NCT06130748
- Lead Sponsor
- Cairo University
- Brief 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.
- Detailed 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
Recruitment & Eligibility
- Status
- ACTIVE_NOT_RECRUITING
- Sex
- All
- Target Recruitment
- 24
- Unilateral or bilateral Dental posterior cross-bite
- Skeletal Maxillary constriction
- Male and female patients.
- Chronological age (18-30 years).
- Mid-palatal suture maturation (Grade C,D ) according to F Angileri classification
- Good oral hygiene.
- No craniofacial anomalies or syndromes
- Scissor-bite
- Orthodontically-treated
- functional cross bite due to premature occlusal contact
- patients with a syndrome
- cleft patients
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Primary Outcome Measures
Name Time Method Skeletal maxillary expansion To compare the amount of skeletal expansion pre and post expansion the outcome will be assessed five months post-expansion To compare the amount of skeletal expansion using linear and angular measurements and the expansion pattern of mid-palatal suture extracted from cone beam computed tomography pre and post expansion
- Secondary Outcome Measures
Name Time Method Dento-alaveolar expansion the outcome will be assessed five months post-expansion To compare the amount of dento-alveolar expansion using linear and angular measurements extracted from cone beam computed tomography pre and post-expansion
Trial Locations
- Locations (1)
faculty of dentistry, Cairo university
🇪🇬Cairo, Giza, Egypt
faculty of dentistry, Cairo university🇪🇬Cairo, Giza, Egypt