statistical analysis shows that the regular use of silastic sheet in all cases of extensive defects of the middle-ear mucosa ( ensuring a mucosa-lined space ) or advanced inflammatory changes ( draining the cavity and tube ) can eliminate negative influences of pathological conditions of the middle-ear on the long-term functional results , provided the sheet is removed when the remaining air-bone gap within the main speech range exceeds 10 db after the ear has healed .
C0271428
of
C0013443
ear