Osteogenic potential of recombinant human bone morphogenetic protein-2 combined with Bio-oss bone substitute in implant restorations in anterior esthetic region / 口腔疾病防治

ABSTRACT

Objective@#To study the osteogenic potential of recombinant human bone morphogenetic protein 2 (rhBMP-2) combined with Bio-oss bone substitute in the implant restoration of bone defects in the anterior esthetic region. @*Methods@# Twelve patients who underwent the immediate placement of 20 implants with a bone augmentation procedure using rhBMP-2 and Bio-oss were included in this study. Changes in the height and thickness of the buccal bone over 6 months were measured, and the soft tissue was evaluated using the pink esthetic score (PES) after crown placement. @*Results@# All 20 implants were successfully osseointegrated, and the average increase in bone height was 1.9 mm; different degrees of bone height growth were observed for 17 (85%) implants sites. In one case, there was a severe bone fracture on the buccal side before the operation, resulting in bone plate resorption and decreased alveolar bone height. The bone height did not change significantly in 2 cases. The thickness of the buccal bone plate for all implants was greater than 1 mm. The average thickness was 1.9 mm, and the average PES was 9.8 points. @*Conclusion@# rhBMP-2 combined with Bio-oss bone substitute has a preferable effect on the restoration of bone defects in the anterior esthetic area, and can achieve good aesthetic effect.