tooth loss
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Aged 18-70 years; 2. Patients whose mandibular molar extraction sockets are completely healed and are planning to undergo implant restoration; 3. The distance between the alveolar crest in the edentulous area and the upper wall of the inferior alveolar neural canal measured in CBCT is greater than or equal to 8 mm; 4. No history of periodontal disease and good oral hygiene.
Exclusion criteria
Exclusion criteria: 1. Patients with systemic contraindications to implant surgery and severe liver, kidney and heart insufficiency; 2. Smoking more than 10 cigarettes per day; 3. Occlusal deformity or temporomandibular joint disorder; 4. Patients with severe periodontal disease; 5. Suffering from systemic diseases that may affect osseointegration/tissue healing, such as uncontrolled diabetes (fasting blood glucose greater than 11.1mmol/L), systemic or local bone diseases such as osseointegration, osteitis, and bone tumors; 6. Patients with cardiovascular and cerebrovascular diseases who cannot tolerate surgery; 7. Serious blood system diseases, such as leukemia or other bleeding diseases (such as prolonged prothrombin time greater than 6 seconds); 8. Taking drugs that may affect bone metabolism/tissue healing (bisphosphonates or high-dose adrenal corticosteroids); 9. Patients with radiation osteomyelitis; 10. Those with specific allergic constitution; 11. Bruxism patients; 12. Pregnant or lactating women; 13. Unwilling to participate in clinical research or unable to follow up on time; 14. Other circumstances that are judged by the investigator to be unable to participate in the research.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Implant Mobility;modified gingival sulcus bleeding index;Peri-implant pocket probing depth;Plaque index;Implant marginal bone changes; | — |
Secondary
| Measure | Time frame |
|---|---|
| Incidence of mechanical complications; | — |
Countries
China
Contacts
Stomatological Hospital of Fourth Military Medical University