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Table 4 The frequency of ETFE for the right and left ears according to the type of deformity and class of deformity during the time

From: The effects of orthognathic surgery on auditory function

Eustachian Tube Dysfunction Test
  T0 T1 T2
N p N p N p
Right ear Horizontal 14 1 15 1 15 1
Vertical 15 1 14 1 14 1
  29 (93.5%) 2 (6.5%) 29 (93.5%) 2 (6.5%) 29 (93.5%) 2 (6.5%)
Left ear Horizontal 12 3 12 3 14 1
Vertical 15 1 10 6 14 2
  27 (87%) 4 (13%) 22 (71%) 9 (29%) 28 (90.5%) 3 (9.5%)