This surgery is mainly aimed to augment the nasal bridge (nasal dorsum) without elongating or reshaping the nasal tip, which will therefore not obviously alter the shape, angle, or length of the nasal tip. It is indicated for patients with better original conditions of the nasal tip but just to correct the flat and low nasal bridge. This surgery is first performed by making an incision of approximately 0.5 cm in the unilateral nostril in which subperiosteal dissection is performed, and then, an appropriate nasal implant is emplaced over the nasal bridge before the intranasal wound is sutured. Optional materials of the emplaced prosthesis include a general silicone nasal implant, Korean-style Bistool silicone nasal implant (also called beak-shaped nasal implant), or Chimera (Sili-Tex) composite nasal implant. Available models comprise type I or L in each prosthesis. Dr. Chuang will suggest the proper type and material in light of individual conditions.