A comprehensive approach to management the bilateral maxillary sinus tracts: A case reportAli Chamani1, Maryam Forghanirad2, Reza Shakiba3, Arsalan Shahri4*Department of Endodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, IranAssociate Professor of Endodontics, Department of Endodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, IranStudent research committee, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, IranDental Materials Research Center, Mashhad Dental School, Mashhad University of Medical Sciences, Mashhad, Iran* Corresponding author:Arsalan ShahriDental Materials Research Center, Mashhad Dental School, Mashhad University of Medical Sciences, Mashhad, IranTel: +98 915 425 5097Email: Arsalshahri98@gmail.comOrcid: https://orcid.org/0000-0002-0980-7797Address: Dental Materials Research Center, School of Dentistry, Vakil Abad Blv, Azadi Square