An early mastoid cavity epithelialization technique using a postauricular pedicle periosteal flap for canal wall-down tympanomastoidectomy.

A comparison of the two groups showed that it took only 1 month on average for the entire surface of the external auditory meatus of the patients in group I to epithelialize and dry up perfectly, although the same area in all the patients in group II was not dried up perfectly until over 80 days.