Features of Tubotympanic com are all except

• Also known as Safe type

• Involves pars tensa

• Involves pars flaccida

• Permanent central perforation is present

Hearing loss in complete fixation of foot plate of stapes is approx

• 40dB

• 10-40dB

• 60dB

• 10dB

Most common Autograft that is used in Tympanoplasty

Columella tympanoplasty is other name for ____ Tympanoplasty.

• Type 1

• Type 2

• Type3

• Type 4

Graft covers the lateral semicircular canal in ___ type of tympanoplasty

• Type 4

• Type 5

• Type 3

• Type 2

All are features of TB COM except

• Painful ear discharge

• Pale granulations +

• Multiple perforation on TM

• Foul smelling discharge

Identify the type of perforation in picture

• Attic

• Marginal

• Central

Most common ossicle necrosed in COM is

• Foot plate of stapes

• Posterior crura of stapes

• Handle of malleus

• Lenticular process of incus

Focal length of microscope used in ear surgeries is

• 300mm

• 250mm

• 400mm

• 500mm

Name the instrument