Dentofacial Deformities Caused by Joint-Derived Disorders
Conditions
Interventions
Surgical treatment group:Disc repositioning by surgery.
Articular disc repositioning by surgery combined with pre-operative orthodontic functional appliance.:Use orthodontic functional appliance before surgery.
Sponsors
The Affiliated Stomatological Hospital of Nanjing Medical University
Eligibility
Sex/Gender
All
Age
12 Years to 30 Years
Inclusion criteria
Inclusion criteria: 1) Patients aged 12 to less than 20 years, diagnosed by MRI with TMJ anterior disc displacement without reduction, accompanied by mandibular deviation (condylar point distance from the midline greater than 2mm) and Class II malocclusion (SNB > 76.2 and ANB > 4.7). 2) MRI and CBCT will be conducted preoperatively, postoperatively, and during follow-up. 3) Patients will be informed and willing to participate in the clinical study and sign the informed consent form. 4) Undergoing surgical treatment for the temporomandibular joint disc.
Exclusion criteria
Exclusion criteria: 1. Patients with severe perforation and deformation of the joint disc, unable to establish stable occlusion in the entire mouth. 2. Patients with radiation-induced osteomyelitis, acute or chronic osteomyelitis, or severe osteoporosis. 3. Patients with acute or chronic infections in the TMJ area, a history of trauma, rheumatoid arthritis, or other autoimmune diseases, and any other history of diseases that may affect jawbone growth and development. 4. Patients who have previously undergone temporomandibular joint surgery. 5. Patients with a follow-up period of less than 6 months.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Condylar height ;Joint space;Mandibular deviation;Mandibular retrognathia; | — |
Countries
China
Contacts
Public ContactPing Zhang
The Affiliated Stomatological Hospital of Nanjing Medical University
Outcome results
None listed