Primary versus post-treatment apical periodontitis: microbial composition, lipopolysaccharides and lipoteichoic acid levels, signs and symptoms.
Felipe Paiva MachadoRayana Duarte KhouryCassia Cestari ToiaEsteban Isai Flores OrozcoFelipe Eduardo de OliveiraLuciane Dias de OliveiraFlávia Goulart da Rosa CardosoMarcia Carneiro ValeraPublished in: Clinical oral investigations (2020)
It was verified that PAP and PTAP are polymicrobial infections with predominance of gram-negative bacteria and a more diverse bacterial population found in PTAP. A wide interaction of specific microbial species resulted in different clinical features in both infections.