AU - Patil, Thimmanagowda TI - Effect of adversities in endodontics on maxillary sinus: Maxillary sinusitis of endodontic origin – A short review PT - SHOR DP - 2020 Jul 1 TA - Indian Journal of Oral Health and Research PG - 33-37 VI - 6 IP - 2 4099- https://www.ijohr.org/article.asp?issn=2393-8692;year=2020;volume=6;issue=2;spage=33;epage=37;aulast=Patil;type=0 4100- https://www.ijohr.org/article.asp?issn=2393-8692;year=2020;volume=6;issue=2;spage=33;epage=37;aulast=Patil AB - Maxillary sinusitis of endodontic origin is basically an endodontic infection extending into the maxillary sinus. Scientific research and prevalence show that periapical infections manifesting in the sinus are under appreciated and gets neglected by specialists. Better understanding of the origin and the condition and the discussion with ENT specialists is important to diagnose endodontic origin of sinusitis and to differentiate sinogenic sinusitis. Identification and treatment of maxillary sinusitis of endodontic origin is of utmost importance as these left untreated can lead to persistence of sinus disease with failure of the medical therapies and the progression to more advanced stage or even life-threatening cranio-facial infections.