ULTRASTRUCTURAL CILIARY CHANGES OF MAXILLARY SINUS MUCOSA FOLLOWING FUNCTIONAL ENDOSCOPIC SINUS SURGERY (FESS)

Abstract

This work was conducted on 20 maxillaty sinuses to prove if FESS is associated with cilary regeneration and increase in the number of cilia in the maxillaty sinus or not and to confirm the Messerklingers theory. Biopsies were obtained from the maxillaty sinus superolateral wall and from the maxillary sinus ostium at the time of the surgety and studied by scanning electron microscopy,light microscopy a nd image analysis to calculate cilary area.patients were rebiopsied after 6-12 months after the operation from the same places.FESS was found to to be associated wi th ciliary regeneration and increase in the values of ciliary area and this confirm the validity of the functional the01y upon which thi s surgery is based.