Abstract
The aim of this study is to avaliate the microbial load (CFU/mL), endotoxins (UE/mL) and lipoteichoic acid (LTA) levels of primary versus secondary endodontic infections. For this, thirty unirradicular patients' teeth are going to be selected, being fifteen with primary endodontic infection (GI) and fifteen with secondary endodontic infection (GII). All patients are going to have their te…