RHINOPLASTY: Is my dorsum over resected? And how safe is it to build it back up with ear/rib cartilage? (photo)

The decision as to whether a dorsum is over resected lies with the patient. Some people may think your nose is over resected while others may like the slope created. At any rate, if you wanted it built back up, it's perfectly acceptable to build it back up with cartilage or Gortex grafting. Be sure to see a revision rhinoplasty specialist for consultation.

Hi Mimi, 
Nose job (Rhinoplasty) is one of the most amazing operations in the field of Plastic Surgery. It can have such a positive impact on a person's life and greatly improve a person's beauty. 
The framework of the nose is made up of Cartilage and Bone. Meticulous and delicate work needs to be done by the surgeon for a perfect result. This requires a large amount of experience. For instance, personally, I recognize myself as an expert after doing over 1000 nose jobs. My practice in the Middle East was mainly a Rhinoplasty practice. I hope to bring the same delight and gratification to Orange County. 
Performing Rhinoplasties and Revision Rhinoplasties for ten years I believe I give my patients remarkable results. But it is important to note that even with the best of us revision is sometimes needed. I am sure I will spend the rest of my life learning and improving my nose job techniques. 
Please look at some before and after pictures and notice how improving the nose makes all facial features better. The eyes look more symmetrical and the facial bone structures just appear better. Feel free to look at my before and after pictures of Rhinoplasty and Revision Rhinoplasty.
In your case, I don't think you have an over resected dorsum. You have an over projected and over rotated tip. which means the tip of your nose is too far from the base and too rounded upwards (pointing out and up). This makes your dorsum seems likes its lower than it should be. 
All of those issues can be corrected by doing a revision Rhinoplasty. 
There are plenty of us Plastic surgeons who are great rhinoplasty surgeons. But also note that there are other specialties that are also very good at doing nose jobs such as ENT surgeons and Maxillofacial Surgeons. Make sure you do your due diligence. 
Best Wishes, 
Tarek V. Copty, MD FACS
Cosmetic, Plastic and Reconstructive Surgeon.