Fig. 2

a Cell recruitment assay demonstrated that 100 ng/ml of rhBMP2 is significantly able to improve MC3T3-E1 cell recruitment (Cell number per field of view). b Proliferation assay of MC3T3-E1 cells seeded at 1, 3 and 5 days post seeding demonstrated that no further advantage of combining rhBMP2 with BCP or BCP alone could be observed cell number of MC3T3-E1 cells demonstrated that the combination of rhBMP2 + BCP significantly increased numbers at 3 and 5 days post seeding when compared to rhBMP2 alone or BCP alone (*, p < 0.05, denotes significant difference between group and control, ** p <0.05, denotes significantly higher than all other groups)