Bone grafting is a very broad topic that can be utilized in many ways in dental treatment.  

Bone Grafts can be classified in multiple ways, including autogenous (from patient), allograft (from cadaver), xenograft (from animal species).  Regardless of which source, bone grafts are treated to remove cells and any potential transmission of disease.  They have been used for decades with high safety and efficacy.  Once a bone graft is placed, much of it is replaced by your own bone within 6 months.

Bone grafting uses: