Participants
Patients who underwent type-1 tympanoplasty due to COM between January
2013 - December 2018 enrolled in the study. Only patients with
conductive hearing loss and simple pars tensa perforation of the
tympanic membrane were included in the study. Patients with PCG, ICG,
and WsCCG grafts, patients older than 18 years of age, patients with air
conduction threshold less than 50 dB, and patients with bone conduction
threshold less than 20 dB were included in the research. Also, the
patients aged < 18 years old, patients with cholesteatoma,
tympanosclerosis, an ossicular chain defect, bilateral chronic otitis
media, adhesive otitis or retraction pockets, pars flaccida
perforations, total or subtotal perforations were eliminated.