About 20-40%: Depends on the size of perforation, also whether there is discharge.
Answered 2/14/2013
5.9k views
30 dB: Usually less than 30 db for a smaller perforation. Most are repairable. See http://www.Richmondent.Com/ear-nose-throat/ears-hearing.Php.
Answered 10/14/2016
5.9k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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