3 Walls osseous defect the best graft to be used.. Mixed intraoral cancellous & compact bone mixed with patient blood

3 Walls osseous defect the best graft to be used:

1. Intraoral cancellous bone mixed with patient blood.

2. Intraoral compact bone mixed with patient blood

3. Mixed intraoral cancellous & compact bone mixed with patient blood *** 

4. Extra oral compact bone mixed with patient blood.