Single-tooth edentulism
Conditions
Interventions
Exposed group:None
Non-exposed group:None
Sponsors
Peking University Hospital of Stomatology
Eligibility
Sex/Gender
All
Age
20 Years to 70 Years
Inclusion criteria
Inclusion criteria: 1. The age of the patients is not less than 20 years old and not more than 70 years old; 2. A single tooth in the posterior and anterior areas without free loss has been restored by implant-supported single crown without clinical symptoms; 3. When the posterior implant-supported single crown was first fitted with the 12µm occlusal foil and 30µm occlusal paper, the 12µm occlusal foil could be extracted without resistance during light bites, and the 30µm occlusal paper could contact the prosthesis during heavy bites. The primary use of anterior implant-supported single crown is based on the median light occlusion, and the forward occlusion should be guided by the natural teeth together. 4. Dental floss passed through the adjacent contact area with appropriate resistance when the implant was initially worn; 5. Presence of stable intercuspal intercuspal interface; 6. The position of the adjacent teeth and the opposite teeth of the implant crown was basically normal and not loose. 7. The follow-up time after implant restoration is not less than 3 months;
Exclusion criteria
Exclusion criteria: 1. The adjacent teeth or opposite teeth of implant-supported single crown were implant prostheses; 2. No occlusal contact of the adjacent teeth of the implant crown; 3. Filling cusps exist in the opposite teeth of implant-supported single crown. 4. Uncontrolled periodontitis; 5. Temporomandibular joint disease; 6. If an adjustment was made to change the local occlusion distribution or the adjacent contact after tooth wearing, such as crown restoration or occlusal surface filling to change the occlusal force distribution, or proximal resin filling to change the adjacent contact, the adjustment time was set as the end point of follow-up.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Occlusal clearance; | — |
Secondary
| Measure | Time frame |
|---|---|
| Occlusal contact area;Implant Fracture:;Prosthetic Complications;Occlusal clearance value (silicone registration method);Articulating Paper Evaluation Method (Intraoral Clinical Photographic );T-Scan III Occlusal Analysis System Evaluation;Adjacent Tooth Displacement (Intraoral Scanning Method);Floss Test for Interproximal Contacts;Peri-implantitis;Implant Survival; | — |
Countries
China
Contacts
Public ContactDing Qian
Peking University Hospital of Stomatology
Outcome results
None listed