Maxillary Transverse Deficiency
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Adult MTD patients aged 18-45 years; 2. The amount of arch expansion >= 5mm; 3. The bilateral maxillary first premolars and first molars have no missing or large-area defects, and the periodontal condition is good, and the expansion device can be bonded; 4. No systemic disease, no maxillofacial developmental deformity, no restricted mouth opening; 5. No history of maxillofacial trauma or orthognathic surgery.
Exclusion criteria
Exclusion criteria: 1. Patients with pathological damage to the jaw; 2. Patients with fractures or large-area defects of the hard palate, and patients with cleft lip and palate; 3. Patients with severe temporomandibular joint disease; 4. Patients with metal allergy; 5. Pregnant and lactating patients; 6. Depression, anxiety and other mental illness patients; 7. Patients with other contraindications to surgery.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Maxillary base width; | — |
Secondary
| Measure | Time frame |
|---|---|
| U6 inclination; | — |
Countries
China
Contacts
Shanghai Stomatological Hospital, Fudan University