Silent sinus syndrome is a rare clinical condition in which patients present with spontaneous enophthalmos and hypoglobus secondary to collapse of orbital floor due to chronic subclinical maxillary sinusitis. It is postulated that obstruction of the osteomeatal complex lead to negative antrum pressure which causes the maxillary sinus atelectasis.
A normally restored orbital structure after reconstructive surgery would accelerate the return of orbital function. The aim of the present study was to compare the outcomes of 2 orbital implants: autogenous grafts and porous polyethylene (Medpor).