defect of dentition
Conditions
Interventions
PRF+DBBM group:Two PRF were added every 0.5gDBBM
DBBM group:DBBM was mixed with normal saline
Sponsors
Hospital of Stomatology,JiLin University
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Inclusion criteria
Inclusion criteria: 1) patients over 18 years old requiring posterior dental implant treatment 2) The height of residual bone of maxillary sinus floor =4 mm 3) never smoked or smoked less than 5 cigarettes per day 4) systemic and local conditions suitable for implant placement and sinus floor elevation surgery; 5) willing and fully able to adhere to the study protocol.
Exclusion criteria
Exclusion criteria: 1) presence of systemic diseases or conditions affecting bone metabolism and/or bone healing. 2) Use any medications that may interfere with bone metabolism (e.g., corticosteroids, bisphosphonates) 3) history of maxillary sinusitis or maxillary sinus surgery 4) history of implant failure in the posterior maxillary region 5) patients with severe mental illness who are unable to cooperate with treatment or regular follow-up.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Percentage of new bone formation (NB/BV); | — |
Secondary
| Measure | Time frame |
|---|---|
| Total Bone Volume (BV);Percentage of bone substitute material (BS/BV);Bone Mineral density (BMD);Trabecular Thickness (Tb.Th);Trabecular separation (Tb.Sp);Number of trabeculae (Tb.N);Volume of bone graft material;Stability of implants;Osteogenic gene expression;Implant survival rate; | — |
Countries
China
Contacts
Public ContactYanmin Zhou
Hospital of Stomatology,JiLin University
Outcome results
None listed