A Blom-Singer prosthesis is used:: (A) As a ventilation tube in otitis media with effusion, (B) To close a perforation in nasal septum, (C) To divert tracheal air into oesophagus for voice production in laryngeal patients, (D) In stapedectomy to conduct sound from incus to oval window
Answer is C. Blom-Singer prosthesis is used in laryngectomised patients to divert tracheal air to oesophagus for production of voice.Prosthesis used to ventilate middle ear in otitis media with effusion is called a ''grommet" or ventilation tube.Septal button made of silicon or Teflon is used to close septal perforation.Stapes replacement prosthesis made of Teflon, tefwire, platinum or stainless steel is used in stapedectomy.