ENT Disease of External Nose & Nasal Septum d4aae768 Alternative for SMR: A Tympanoplasty B Septoplasty C Caldwell-Luc operation D Turboplasty High-Yield Explanation (b) Septoplasty(Ref. Cummings, 6th ed., 481)Septoplasty is more conservative procedure than SMR and is the preferred surgery for DNS.