<prompt> Youngs surgery is used in the treatment of-Maxillary sinus carcinomaDeviated nasal septumNasal polypAtrophic Rhinitis  <response>: Ans. is d i.e. Atrophic Rhinitis Surgical treatment of Atrophic Rhinitis1 Youngs operation . Closure of both the nostril following elevation of the nasal vestibular folds. They are opened after 6 months.2 Modified Youngs operation. Partial closure of the nostril leaving behind a 3 mm hole. This remains for a period of 2 years.3 Narrowing of the nasal cavity by Lautenslagers operationo Submucosal injection of teflon paste. Insertion of fat, cartilage, bone or teflon strips under the mucoperiosteum of floor lateral wall of nose. Section and medial displacement of lateral wall of nose.4 Lautenslagers operationo Surgical procedures aimed at medializing the lateral nasal wall using substances like : Paraffin, teflon, Polythere cartilage. 