Alveolar bone defect
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1: From January 1, 2022 to May 1, 2024, in the Stomatology Hospital of Zhejiang Chinese Medicine University, patients who completed tooth extraction and follow-up implant surgery by Dr. Sheng Zheng.Patient underwent alveolar ridge preservation with sticky bone +A-PRF membrane, or only suture to close the wound after tooth extraction 2: Adults over 18 years old 3: Partial or complete defect of the buccal or lingual/palatal bone walls in alveolar ridge of extraction socket 4: Patients with CBCT images retained before and 4 months after tooth extraction
Exclusion criteria
Exclusion criteria: 1: CBCT image overlap results in low accuracy. 2: Other confounding factors present in patient records that can reduce data reliability.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Changes of alveolar ridge height before and after operation ; | — |
Secondary
| Measure | Time frame |
|---|---|
| The difference of bone mineral density in operative area and marginal bone mineral density at 4 months after operation; | — |
Countries
China
Contacts
Hospital of Stomatology, Zhejiang Chinese Medical University