Increased Root Canal Endotoxin Levels are Associated with Chronic Apical Periodontitis, Increased Oxidative and Nitrosative Stress, Major Depression, Severity of Depression, and a Lowered Quality of Life

Cinthya Gomes; Frederico Canato Martinho; Décio Sabbatini Barbosa; Leonardo Santos Antunes; Helvécio Cardoso Corrêa Póvoa; Thiago Hissnauer Leal Baltus; Nayara Rampazzo Morelli; Heber Odebrecht Vargas; Sandra Odebrecht Vargas Nunes; George Anderson; Michael Maes