Nose implant alternatives in Asian Rhinoplasty?

Surgery with silicone implants is quicker, since they are pre-fabricated and easier to place than autologous grafts (tissue from your own body), and the recovery may be a bit easier. The results may also look good for several years, however they are not a permanent solution. As long as the implant is in place there will be an associated risk of infection, migration, and extrusion (coming through the skin) which is higher than that of autologous grafts. The reason for the lack of permanence is that synthetic implants never become fully incorporated into your body. Using tissue from your own body will give you the safest, longest lasting results and a beautiful nose. Your own tissue has a much lower risk of infection or extrusion. Cartilage can be harvested from within your nose (septum) or from your ear, through an incision hidden in the crease behind your ear. Even in Asian patients these areas heal impeccably.

One can use fillers to augment the dorsum of the nose and I do so to get an instant rhinoplasty but that is not a permanent procedure.  If you do use fillers, make sure to use a hyaluronic acid filler.  Silicone implants are certainly not my preference-I use either autologous rib or fresh frozen rib to give the look you desire for a dorsal augmentation.  However, to augment the tip one should use the patient’s own autologous cartilage.It is very important to seek a board certified plastic surgeon or ENT surgeon who is a true expert in ethnic rhinoplasty. 

Use your own tissue to build up the bridge. Cartilage from your septum and your ear will be sufficient to build your bridge without having to resort to rib. There's no more a natural look than using your own tissues.