Transverse Maxillary Deficiency
Conditions
Keywords
maxillary expasnion
Brief summary
This study aims to evaluate the Skeletal and Dento-alveolar expansion in adult patents using Four Mini-screws Supported Hyrax in compare with untreated control group.
Detailed description
Aim of the study: To evaluate the Effectiveness of Four Mini-screws Supported Hyrax for Maxillary Expansion in Early Adulthood Methodology: * Essential record for orthodontic treatment will be taken. * impression with bands on upper first molars will be taken. * Four 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. * The appliance will be cemented 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 Four 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 * Mid-palatal suture maturation(Grade A.B,E) according to F Angileri classification
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Skeletal maxillary expansion | 5 months interval between pre and post-expansion | To compare the amount of skeletal expansion pre and post expansion |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Dento-alaveolar expansion | 5 months interval between pre and post-expansion | To compare the amount of Dento-alaveolar expansion pre and post expansion |
Countries
Egypt
Outcome results
None listed