Table 1: Inclusion & exclusion criteria.
Inclusion criteria |
1. Patients with history of grade 1 or 2 otorrhea (Merchant classification) but now dry for 6 weeks. 2. Patients with non-traumatic tympanic membrane perforation. |
Exclusion criteria |
1. History of previous middle ear & mastoid surgery 2. History of current or previous squamous disease in middle ear & mastoid 3. Age younger than 8 years or older than 75 years. 4. Refusal to give consent to participate in the study. 5. The only hearing ear. |