maxillary transverse deficiency
Conditions
Interventions
MARME Group:None
Sponsors
Shanghai Stomatological Hospital, Fudan University
Eligibility
Sex/Gender
All
Age
18 Years to 45 Years
Inclusion criteria
Inclusion criteria: 1. Retrospective part: (1) Patients aged 18-45 years, of any gender; (2) Have undergone minimally invasive surgery or MARME-assisted maxillary skeletal expansion; (3) Have CBCT images before treatment and at the end of treatment. 2. Prospective part: (1) Patients aged 18-45 years, of any gender; (2) Narrow maxillary dental arch, with treatment plan involving maxillary skeletal expansion; (3) CBCT shows palatal suture has fused and calcified, maturity assessed as stage D or E; (4) Bilateral maxillary first premolars and first molars are intact with no large defects, and periodontal condition is good, suitable for bonding expansion devices; (5) Signed informed consent and committed to complete follow-up.
Exclusion criteria
Exclusion criteria: 1. Retrospective part: (1) History of maxillofacial trauma or orthognathic surgery; (2) Patients with pathological damage to the jawbone, fractures or large defects in the hard palate area, or cleft lip and palate; (3) CBCT images of poor quality, making accurate measurement impossible. 2. Prospective part: (1) History of maxillofacial trauma or orthognathic surgery; (2) Patients with pathological damage to the jawbone, fractures or large defects in the hard palate area, or cleft lip and palate; (3) Patients with moderate to severe inflammation; thin buccal bone of the posterior maxillary teeth; roots of the maxillary central incisors (teeth 11-21) in close contact; (4) Patients with limited mouth opening and severe temporomandibular joint disorders; (5) Patients with metal allergies; (6) Pregnant or breastfeeding patients; (7) Patients with psychological disorders such as depression or anxiety; (8) Patients with other surgical contraindications.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The increase in the width of the maxillary basal bone relative to the baseline after arch expansion; | — |
Secondary
| Measure | Time frame |
|---|---|
| Inclination angle of the first molar;nasal width;Patient's subjective evaluation; | — |
Countries
China
Contacts
Public ContactLiming Yu
Shanghai Stomatological Hospital
Outcome results
None listed