Answer:
Bone grafts in the nose can be taken from the calvarium or iliac crest. The disadvantage is that they tend to resorb over time and also there is a donor site morbidity. Cartilage grafts can be harvested from the septum, concha, or costal cartilage. The advantage of using cartilage is that they tend to resorb less over time. However the disdadvantage is that they can warp unpredictably and will be easily visible under the thin skin of the nose. Other problems include graft mobility and extrusions.