malocculusion
Conditions
Interventions
After closing the tooth extraction space using a multi-bracket device, fine adjustment is performed using a clear aligner orthodontic device.
Sponsors
Hiroshima University Hospital
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Aged 16 or over and under 40 at the time of obtaining consent 2. Patients who have extracted maxillary and mandibular premolars (regardless of the difference between the first and second premolars) and are undergoing orthodontic treatment with a multi-bracket appliance 3. Patients who can see a doctor once a month 4. Those who can obtain written consent from the person or a legally acceptable person regarding participation in this research
Exclusion criteria
Exclusion criteria: 1. Persons with a significant skeletal discrepancy 2. Subjects with congenital anomalies such as cleft lip and palate 3. Subjects with systemic diseases or medications that interfere with treatment 4. Persons with less than 24 teeth, excluding teeth extracted for convenience, wisdom teeth, and supernumerary teeth 5. Subjects who have ankylosis (osseous adhesion) due to trauma 6. Subjects with severe periodontal disease 7. Subjects who take painkillers frequently (more than once a day) 8. Others who are deemed inappropriate by the principal investigator or co-investigator
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Evaluation of occlusal status: At the final stage of treatment, the occlusal status after dynamic treatment with a mouthpiece-type orthodontic appliance will be assessed using the American Board of Orthodontics (ABO) objective review system (OGS). | — |
Secondary
| Measure | Time frame |
|---|---|
| Usage time evaluation Assessment of pain during treatment X-ray evaluation Assess temporomandibular joint Assess temporomandibular joint Evaluation of periodontal condition Evaluation of caries Evaluation of duration of treatment | — |
Countries
Japan
Contacts
Public ContactRyo Kunimatsu
Hiroshima University Orthodontics
Outcome results
None listed