Virtual models for alveolar bone graft surgery simulation. (A) Unilateral alveolar cleft models displaying (B,C) the superior, inferior, (D,E) anterior, and posterior borders of bone defects filled with simulated bone graft tissue (blue) in two models with different densities of CBCT from the same patient with complete unilateral. (F) Bilateral alveolar cleft models displaying (G,H) the superior, inferior, (I,J) anterior, and posterior borders of bone defects filled with simulated bone graft tissue (blue) in two models with different densities of CBCT from the same patient with complete bilateral cleft lip and palate.