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Immediate implant placement in thin buccal bone phenotype: CBCT-based retrospective comparison between DBBM and H-PRF
Jun Ai1, Yun Qiu2, Yongjun Li3
1State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China; Department of Oral Implantology, School and Hospital of Stomatology, Wuhan University, Wuhan, China; Department of Stomatology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China.
Horizontal platelet-rich fibrin bone blocks (H-PRF-BB) show comparable bone augmentation to deproteinized bovine bone mineral (DBBM) for immediate implant placement. Both methods yielded similar ridge contour remodeling in thin or defected buccal bone cases.
Area of Science:
- Dental Implantology
- Periodontology
- Biomaterials Science
Background:
- Immediate implant placement in the anterior maxilla often requires bone augmentation, especially in cases with thin labial bone.
- Deproteinized bovine bone mineral (DBBM) is a commonly used bone graft material.
- Horizontal platelet-rich fibrin bone blocks (H-PRF-BB) represent a newer biomaterial for bone regeneration.
Purpose of the Study:
- To compare the efficacy of DBBM alone versus H-PRF-BB for horizontal bone augmentation.
- To evaluate outcomes in patients undergoing immediate implant placement with flap surgery.
- To assess cases with thin labial bone (≤1 mm) or small buccal bone defects.
Main Methods:
- A comparative study involving 25 patients and 34 implant sites.
- Immediate implant placement with horizontal bone augmentation using either DBBM or H-PRF-BB.
- Cone-beam computed tomography (CBCT) scans were analyzed preoperatively and 6 months postoperatively.
- Measurements included horizontal bone width changes, bone volume changes, and ridge contour remodeling.
Main Results:
- No significant differences were found in overall bone width (ΔRWn) or bone volume (ΔV) changes between the DBBM and H-PRF-BB groups.
- A statistically significant increase in horizontal bone width (ΔRW8) was observed in the H-PRF-BB group compared to the DBBM group (P = .023).
- Both groups showed comparable ridge contour remodeling and bone resorption at the alveolar crest, with no significant differences in vertical changes.
Conclusions:
- H-PRF-BB is a viable alternative to DBBM for horizontal bone augmentation in immediate implant placement scenarios.
- Both materials achieve similar ridge contour remodeling, suggesting comparable clinical outcomes for this specific application.
- Further research is warranted to elucidate the biological mechanisms influencing bone healing with these materials.
