Is It Possible to Use Septal Cartilage for the Nose Bridge/dorsal Augmentation?

I agree with you.  Septal cartilage grafts are ideal to augment the bridge of the nose.  The cartilage is easily harvested at the time of surgery.  The piece of cartilage may not be as large as a silicone implant, but it may be an option worth exploring.  Adorsal cartilage graft using septal cartilage is a standard and routine plastic surgical procedure and works well if you are the right candidate.

Septal cartilage less forgiving and less abundant (especially in Asian nose) than diced cartilage and fascia graft, composed of septal and/or ear cartilage.  You may need tip graft as well, and restricting yourself to septum as the only source limits the amount of correction that can be achieved.