Malocclusion, narrow upper jaw Oral Health
Conditions
Interventions
Participants were randomly divided into two groups using a simple computer randomization method at a 1:1 allocation ratio. The patients in the first group were expanded using quad-helix, and the secon
Sponsors
Damascus University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Patients with mixed occlusion, aged 7-10 years 2. The presence of a functional unilateral posterior crossbite (associated with lateral slippage) 3. Symmetrical maxillary arch narrowing or symmetrical skeletal narrowing (assessed clinically and then radiographically) 4. The maxillary first molars are erupted and in good condition, with full eruption of the upper and lower molars (at a minimum) 5. Dental and skeletal relationships of the first, light second, or light third category (meaning that the angle ANB falls between 1-5), protrusion between 0.5 to 4 mm, coverage between 0.5 to 4 mm 6. A normal or mild vertical growth model such that the Bjork sum is between 390-406, the Y axis is between 62-72 degrees, and the angle between SN and GoMe is 26-42 degrees 7. There are no general problems, the patient has good oral health, and has not undergone previous orthodontic treatments
Exclusion criteria
Exclusion criteria: 1. The presence of periodontal diseases, general diseases, syndromes (cleft lip and palate) or systemic diseases that affect growth 2. Patients who have undergone previous orthodontic treatment 3. If the structural relationship is of the second or third category, moderate or severe 4. Patients with anterior crossbites as well as posterior crossbites 5. Patients with anterior open bites as well as posterior crossbites 6. Patients whose functional posterior crossbites are characterized by anterolateral slippage 7. Patients whose chin deviation on closure is of common structural and functional origin 8. Patients in whom the path of mouth opening from the rest position to the maximum possible position is tortuous or disturbed
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. Maxillary intermolar distance is measured using a digital caliper at T0, T1, T2, and T3 2. Lower intermolar distance is measured using a digital caliper at T0, T1, T2, and T3 3. Maxillary intercanine distance is measured using a digital caliper at T0, T1, T2, and T3 4. Lower canine distance is measured using a digital caliper at T0, T1, T2, and T3 5. Medial joint space is measured using CBCT at T0 and T1 6. Distal joint space is measured using CBCT at T0 and T1 7. Anterior joint space is measured using CBCT at T0 and T1 8. Posterior joint space is measured using CBCT at T0 and T1 9. Superior joint space is measured using CBCT at T0 and T1 10. Angle of the condyle in the horizontal plane is measured using CBCT at T0 and T1 11. Angle of the condyle in the frontal plane is measured using CBCT at T0 and T1 12. Angle of the condyle in the sagittal plane is measured using CBCT at T0 and T1 (T0): before the expansion begins (T1): after the end of the active treatment phase. (T2): after the end of the stabilization phase, which lasts 3 months (T3): After completing the monitoring phase, which lasts 6 months, starting from the end of the stabilization phase. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Pain is measured using the visual analogue score (VAS) at baseline, 24 hours, 1 week, 2 weeks, and 1 month | — |
Countries
Syria
Contacts
Public ContactMohammad Aynawi
Outcome results
None listed