deep overbite
Conditions
Interventions
Control Group A (trial one):None
Treatment Group B (trial one):clear aligners combined with personalized digital bite ramp
Control Group C (trial two):None
Treatment Group D(trial two):clear aligners combined with personalized digital bite ramp
Sponsors
Stomatological Hospital of Fourth Military Medical University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Age>=18 years; 2. The double dental arch is orthodontized with bracket-free invisible appliances; 3. The vertical bone surface type is uniform angle or low angle; 4. The hard palate is well developed, the palatal fold is clear, and the periodontal condition is good; 5. Good compliance, replace a pair of appliances every 10 days, and wear it for >=22 hours per day; 6. The tooth shape is good, the crown height is sufficient, there is no bad restoration, and the root length is within the normal range; The three-dimensional movement direction of the teeth designed during the enrollment period did not include the horizontal movement of the teeth, and if only the vertical movement of the teeth was designed, it was included in trial 1. If the design of vertical tooth depression with adduction movement is designed, it will be included in test 2
Exclusion criteria
Exclusion criteria: 1. Patients with systemic diseases or syndromes; 2. Taking bisphosphonates, antidepressants and other drugs that may affect bone metabolism during treatment; 3. History of cleft lip and palate, history of palatal trauma; 4. Women of childbearing age who have a plan to prepare for pregnancy and the first trimester of pregnancy in correction; 5. Patients with severe periodontal disease; 6. Botulinum toxin injection is performed during the orthodontic process.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| instruction of anterior teeth;efficacy of intrusion movement; | — |
Countries
China
Contacts
Public ContactGu Zexu
Stomatological Hospital of Fourth Military Medical University
Outcome results
None listed