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The maxillary sinus is the largest among all the paranasal sinuses located in the maxilla, sis, and treatment. A narrative literature review was carried out through Pubmed, Lilacs and Scielo databases, with selected articles in Portuguese and English. Odontogenic maxillary sinusitis is a disease with a complex diagnosis that requires complementary exams for the proper planningbetween the main orbital and nasal. Diversity can be considered, although special attention should be paid to the causes of alveolar diseases that can cause maximum damage to its membrane. This paper aims to describe the findings of the literature on maxillary sinusitis that discuss the anatomy, etiology, diagno of the case. Its treatment depends on the nature that presides and consists primarily in the definition of the causal factor of dental origin. [ABSTRACT FROM AUTHOR]

Numerous complications can occur during dental surgical procedures, and oroantral communication is one of the most discussed in literature. That condition results mainly from extractions of posterior superior dental elements, given its proximity to the maxillary sinus. Its diagnosis is basically made through the Valsalva maneuver and analysis of fragment, however complementary exams can demonstrate that condition. The literature also considers the treatment approach can be quite diversified. Objective: To present, through a narrative review of literature, technical possibilities of clinical approaches for cases of oroantral communication. Methodology: The bibliographic research was online, including articles in Portuguese, English and Spanish, published in the last 10 years, except for those fundamental on the topic, with longer publication time. Letters to editor and editorials were also excluded. A descriptive analysis of articles was then carried out and the data were organized in order to support dentistry professionals to intervene safely in face of that complication. Final Considerations: Oroantral communication is a reality that can occur in the dental office. Its consequences are quite varied, and it is up to the dental surgeon, in addition to avoiding and diagnosing, to know how to intervene effectively when necessary, given that its complications may limit the patient's quality of life. [ABSTRACT FROM AUTHOR]