Geographical differences in bacteria detected in endodontic infections using polymerase chain reaction

Area of Science:

• Microbiology
• Molecular Biology
• Genetics

Background:

• The polymerase chain reaction (PCR) offers unparalleled sensitivity for microbiological detection.
• Endodontic abscesses harbor diverse bacterial communities.

Purpose of the Study:

• To investigate geographical variations in bacterial species within endodontic abscesses.
• To utilize PCR for precise bacterial identification in clinical samples.

Main Methods:

• DNA extraction from endodontic abscess samples collected from Portland, Oregon, and Rio de Janeiro, Brazil.
• Species-specific PCR targeting the 16S ribosomal RNA gene for bacterial detection.
• Statistical analysis to compare bacterial prevalence between geographical locations.

Main Results:

• Significant differences in the detection rates of Prevotella intermedia, Prevotella nigrescens, Prevotella tannerae, Fusobacterium nucleatum, and Porphyromonas gingivalis were observed between the two locations.
• No significant geographical differences were found for Porphyromonas endodontalis, Fusobacterium necrophorum, and Enterococcus faecalis.
• Bacterial profiles in endodontic abscesses varied significantly based on geographical origin.

Conclusions:

• Geographical location is a significant factor influencing the prevalence of specific bacteria in endodontic abscesses.
• PCR-based detection highlights location-dependent microbial differences.
• Findings suggest that geographical context should be considered in endodontic microbiology studies.