tooth defect
Conditions
Interventions
Exposure group (Alveolar ridge preservation with autologous tooth bone graft):None
Control group (Alveolar ridge preservation with bovine bone graft):None
Sponsors
Zhejiang Provincial People's Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 100 Years
Inclusion criteria
Inclusion criteria: 1: Adults over 18 years of age 2: The presence of a tooth to be extracted is a single tooth in positions 4-7 with at least one adjacent tooth 3: The minimum residual bone wall of alveolar bone after extraction was expected to be >3mm 4: All patients who underwent alveolar ridge preservation after tooth extraction (autogenous tooth bone powder or bovine bone powder) in the Dental Implant Center of Zhejiang Provincial People's Hospital were enrolled, and CBCT was taken at least before and after tooth extraction, immediately after surgery, and 6 months after surgery
Exclusion criteria
Exclusion criteria: 1: Smoking (> 10 cigarettes/day) 2: The follow-up was interrupted after operation 3: Patients with poor CBCT quality 4: Patients with incomplete medical records
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Changes in alveolar ridge height at 6 months after tooth extraction; | — |
Secondary
| Measure | Time frame |
|---|---|
| Changes in alveolar ridge width at 6 months after tooth extraction;Changes in alveolar ridge height at 3 months after tooth extraction;Changes in alveolar ridge width at 3 months after tooth extraction;Change in buccal bone convexity at 6 months after tooth extraction;Change in buccal bone convexity at 3 months after tooth extraction;Rate of secondary bone grafting at the time of implantation; | — |
Countries
China
Contacts
Public ContactFan Yang
Zhejiang Provincial People's Hospital
Outcome results
None listed