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The aim of this study was to evaluate the use of PRGF in endodontic surgery to treat sinus membrane perforation.A total of 20 patients (ten per group) were included. In the control group the lesion of the sinusal membrane was treated with collagen sponge. In the test group PRGF was used to close the communication with the sinus cavity.The use of PRGF resulted in better postoperative quality of life...
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