malocclusion
Conditions
Interventions
Micro-veneer Group:micro-veneer-assisted occlusal adjustment
Hawley Group:retention with Hawley retainers
VFR group:retention with VFR
Sponsors
PLA General Hospital Fourth Medical Center
Eligibility
Sex/Gender
All
Age
18 Years to 40 Years
Inclusion criteria
Inclusion criteria: Inclusion criteria: 1) age = 18 years; 2) completion of orthodontic treatment by straight arch fixed orthodontic treatment, the occlusion status was assessed by the orthodontist to have met the end of treatment criteria; 3) model and cephalometric measurements at the end of treatment by the ABO-OGS scale less than 30 points; 4) CR-MIP three-dimensional directional gap = 2 mm by dynamic occlusal assessment; 5) patients with good oral hygiene and no active periodontal disease; 6) no missing teeth in the dentition except the third molar; 7) no dental implants and other removable or fixed prostheses in the natural dentition; 8) good general condition and no history of maxillofacial trauma or surgery;
Exclusion criteria
Exclusion criteria: 1) ABO-OGS score greater than 30; 2) large posterior restorations, including fillings, inlays, partial crowns and full crowns involving the occlusal surface; 3) significant TMJ disorder symptoms and a history of severe TMJ disease; 4) unreviewed and missed cases.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Occlusion Time; | — |
Secondary
| Measure | Time frame |
|---|---|
| Occlusal contact area; | — |
Countries
China
Contacts
Public ContactYanfeng Li
The Fourth Medical Center of the PLA General Hospital
Outcome results
None listed