Malocclusion
Conditions
Interventions
Guide group:Use a planting guide
Non-Guide group:None
Sponsors
the First Affiliate Hospital of Harbin Medical University
Eligibility
Sex/Gender
All
Age
15 Years to 30 Years
Inclusion criteria
Inclusion criteria: (1) Age range is 18 to 30 years old, with no gender restrictions; (2) Micro implant nails need to be implanted.
Exclusion criteria
Exclusion criteria: 1. Allergy to iodine contrast media. 2. Severe liver and kidney damage. 3. Severe thyroid disease (hyperthyroidism). 4. Renal insufficiency. 5. Diabetes, multiple myeloma, dehydration, severe cerebral arteriosclerosis and cerebral vasospasm, acute pancreatitis, acute thrombophlebitis, severe cachexia and other serious lesions. 6. Asthma, hay fever, urticaria, eczema and other allergic lesions. 7. Heart disease: such as congestive heart failure, coronary heart disease, arrhythmia, etc. 8. Patients with contrast agent allergy and other drug allergies in the past. 9. history of orthodontic treatment.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The closest proximity of the miniscrew to the root of the tooth; | — |
Secondary
| Measure | Time frame |
|---|---|
| Angle of miniscrews;coronal of the microscrew;Tip deviation of microscrew; | — |
Countries
China
Contacts
Public ContactWeijun Yan
the First Affiliate Hospital of Harbin Medical University
Outcome results
None listed