Transverse Maxillary Deficiency
Conditions
Keywords
maxillary expansion
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
Interventions
DEVICEHybrid Hyrax
these patents will be treated using Two mini-screws supported hybrid hyrax
Sponsors
Cairo University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Caregiver, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 30 Years
Healthy volunteers
Yes
Inclusion criteria
* 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
Exclusion criteria
* Scissor-bite * Orthodontically-treated * functional cross bite due to premature occlusal contact * patients with a syndrome * cleft patients
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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
| Measure | Time frame | Description |
|---|---|---|
| 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 |
Countries
Egypt
Outcome results
None listed