Tooth loss in the anterior region
Conditions
Interventions
cement/screw-retained restoration group:None
angled screw channel abutment-integrated crown group:None
Sponsors
The First Affiliated Hospital of Wenzhou Medical University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Tooth loss in the maxillary aesthetic zone (defined as between the first premolars on both sides), restored with single-tooth implants using either an angulated screw channel abutment integrated crown or a straight screw channel (modified cement-retained) prosthesis; 2. The patient has signed the surgical informed consent form and has follow-up records (with a follow-up period of more than 6 months); 3. The patient was at least 18 years old at the time of receiving the implant surgery; 4. CBCT data at the time of restoration completion exist and are available; 5. High-quality intraoral photographs at the time of restoration completion are available (adjacent teeth and contralateral teeth visible, labial contour convexity and surrounding soft tissues clearly visible); 6. The patient does not have severe, uncontrollable systemic diseases.
Exclusion criteria
Exclusion criteria: 1. Patients with missing anterior maxillary teeth in the aesthetic zone, who are not restored by the above two methods, or those restored with multi-unit bridges or cantilever restorations; 2. Those who are unable to complete the follow-up examination due to being pregnant or trying to conceive, leaving Wenzhou, changing their phone number, unwillingness to cooperate, or other reasons; 3. Those whose CBCT data or intraoral photos are missing after the repair is completed. 4. Patients with systemic diseases or taking related medications that may affect the research results.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Changes in the labial bone plate of the implant (including bone height and thickness); | — |
Secondary
| Measure | Time frame |
|---|---|
| Pink esthetic score;Peri-implant soft tissue health; | — |
Countries
China
Contacts
Public ContactXi Ding
The First Affiliated Hospital of Wenzhou Medical University
Outcome results
None listed