title: Staphylococcus epidermidis and Staphylococcus xylosus in a secondary root canal infection with persistent symptoms: a case report.
abstract: The aim of this case report is to highlight the importance of maintaining the aseptic chain during endodontic treatment. This paper describes a clinical situation in which persistent symptoms had developed after the first appointment to treat a vital pulp case. Microbiological analysis of the case indicated that symptoms were probably due to a secondary root canal infection by two species of coagulase-negative staphylococci--Staphylococcus epidermidis and Staphylococcus xylosus. Symptoms had persisted in spite of using various intracanal antimicrobial agents and systemic antibiotic therapy.
mesh_terms: D000328:Adult; D003786:Dental Pulp Cavity / Q000382:microbiology; D019232:Dental Restoration Failure; D005260:Female; D006801:Humans; D019233:Retreatment; D012390:Root Canal Therapy / Q000009:adverse effects*; D013203:Staphylococcal Infections / Q000209:etiology*; D013210:Staphylococcus / Q000302:isolation & purification; D015163:Superinfection