Dentition defect
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Aged >=18 years; 2. The non-free end of a single posterior tooth is missing; 3. The occlusal relationship is normal with enough space for repair; 4. The planting area has sufficient bone height and width; 5. Keratinized gingival width >4mm; 6. The initial stability of the implant was >35Ncm; 7. The patient was informed and consented to participate in the study.
Exclusion criteria
Exclusion criteria: 1. Patients with heavy smoking (>10 cigarettes/day); 2. There are local or systemic contraindications to implantation (diabetes, hemophilia, history of renal failure, head and neck radiotherapy, currently undergoing chemotherapy, pregnancy, etc.); 3. Patients with night bruxism and tight occlusion; 4. Periodontal inflammation.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The change of missing teeth space;The change of missing teeth space; | — |
Secondary
| Measure | Time frame |
|---|---|
| Bleeding index;Marginal bone absorption; | — |
Countries
China