Partially Edentulous
Conditions
Interventions
outside-contour group:None
inside-contour group:None
Sponsors
Affiliated Hospital of Stomatology, Zhejiang University School of Medicine
Eligibility
Sex/Gender
All
Age
18 Years to 80 Years
Inclusion criteria
Inclusion criteria: 1. Age 18 years or older. 2. Underwent tooth extraction at our hospital. 3. Single or multiple missing teeth in the maxillary anterior region, with an edentulous period of >=3 months prior to receiving bone-level dental implant placement. 4. Presence of a buccal bone defect after implant placement, managed with simultaneous guided bone regeneration (GBR). 5. Complete and accurate CBCT data required for the study (i.e., pre-extraction, pre-operative, immediate post-operative, healing phase, and follow-up phase) to facilitate measurement and evaluation.
Exclusion criteria
Exclusion criteria: 1. Immediate or early implant placement. 2. Previous ridge preservation procedure at the implant site. ( The implant site had previously undergone alveolar ridge preservation.) 3. Concomitant with other bone defects (e.g., lingual bone defect). 4. Underwent additional bone augmentation procedures (e.g., alveolar ridge splitting, onlay bone grafting, or tenting screw technique). 5. Pre-extraction CT scan showing progressive periodontal or periapical disease of the involved tooth, resulting in the absence of the buccal bone plate.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| augmented bone volume resorption rate,ABV%; | — |
Secondary
| Measure | Time frame |
|---|---|
| bone distance,BD;labial bone width,BW;labial bone height, BH;Probing Pocket Depth,PPD;pink esthetic score,PES;Bleeding on Probing, BoP; | — |
Countries
China
Contacts
Public ContactFuming He
Affiliated Hospital of Stomatology, Zhejiang University School of Medicine
Outcome results
None listed