ABSTRACT BACKGROUND: Oroantral communication is one of the most common complications during oral surgical procedure.it can be caused by extraction of maxillary posterior teeth and several other conditions like the presence of upper molars with long divergent roots, maxillary tuberosity fracture. The complication should be managed as early as possible to prevent the epithelial growth and fistula formation. Factors like contaminated site, time of perforation and diameter of defect are important factors in treatment plan of oac. This review article is aimed to give a comprehensive view about the aetiologies, diagnosis and the variable management of oro antral communication. Materials and Methods: In this review, online researchers will to articles to current subject using scientific databases such as PubMed, google scholar and dental medical books (with English language) about management of oro antral communication.