Root canal contamination or exposure to lipopolysaccharide differentially modulate prostaglandin E 2 and leukotriene B 4 signaling in apical periodontitis. J Appl Oral Sci [Internet]. 2021 Aug. 30 [cited 2024 Jul. 17];28:e20190699. Available from: https://revistas.usp.br/jaos/article/view/190139