dentition defect
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Voluntary informed consent; 2. Aged >18 years; 3. Rehabilitation of molar teeth; 4. Alveolar width of 6~7mm (implant with diameter of 4.5mm).
Exclusion criteria
Exclusion criteria: 1. General contraindications for implant surgery; 2. Severe hemophilia; 3. History of irradiation in the head and neck region less than 1 year before the study; 4. Uncontrolled diabetes; 5. Pregnancy or lactating status; 6. Psychiatric problems or unrealistic expectations; 7. HIV infection; 8. Smoking of >10 cigarettes or cigar equivalents per day or chewing of tobacco corresponding to >10 cigarette equivalents per day; 9. Acute infection in the area intended for implant placement; 10. Presence of osseous lesions.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| level of gingival margin; | — |
Secondary
| Measure | Time frame |
|---|---|
| marginal bone level;implant survival rates; | — |
Countries
China
Contacts
Peking University Hospital of Stomatology