Evaluation of role of periodontal pathogens in endodontic periodontal diseases

AIM: This study aimed to correlate periodontal pathogens in endodontic periodontal diseases. METHODOLOGY: This study was conducted on 40 patients of both genders. All the participants were obtained from department of endodontics and periodontology with history of endo-perio lesion in same teeth. Polymerase chain reaction was performed and correlation was established. RESULTS: This study included 18 males and 22 females. The mean age of male was 42.5 years and female was 41.3 years. Specimens of Tannerella forsythia were isolated from 94% endodontium and 92% periodontium, Porphyromonas gingivalis from 71% endodontium and 55% periodontium, Aggregatibacter actinomycetemcomitans from 12% endodontium and 58% periodontium. The difference was significant (P < 0.05). Bacteria in endodontic-periodontal infection confirmed statistically significant correlation between absolute quantitation of T. forsythia and P. gingivalis (r = 0.412, P < 0.05), P. gingivalis and A. actinomycetemcomitans (r = 0.524, P < 0.05), and T. forsythia and A. actinomycetemcomitans (r = 0.427, P < 0.05). CONCLUSION: There was correlation between targeted bacterial species levels from concurrent endodontic-periodontal diseases. Thus, it can be suggested that dentinal tubules may be the pathway for spread of bacteria.