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Endodontic Treatment Case Study

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Most endodontic treatment failures occur due to incomplete eradication of infection from the root canal and unsatisfactory standard control of infection. Anatomical diversity and improper technique results in incomplete eradication of infection from root canal during treatment. Areas in the root canal like isthmus ramifications, deltas, canal irregularities, lateral canal and dentinal tubules which are clinically difficult for instrumentation and disinfection provides residual organic and inorganic matter in the canal. These residual organic and inorganic matters provide suitable substrate for residual bacteria in those areas (known as persistent intraradicular infection). When complete eradication of these residuals substrate is …show more content…

acnes and coagulase-negative Staphylococci, including S. epidermidis, which are associated with endodontic failure, have been found. This also proves that the complete aseptic condition is difficult to maintain and must frequently change the gloves after each and every process of the treatment [35].
The primary endodontic infection is polymicrobial and consists mainly of gram negative bacteria with a small proportion of gram positive bacteria. These gram negative bacteria are easily removed during chemomechanical preparation of the root canal. But gram positive are resistant to debridement compared to gram negative bacteria. These gram positive bacteria can resist endodontic treatment and have the ability to adapt the harsh environmental condition in endodontically treated canals [36].
The microbiota in root canal treated teeth with persistent infection is composed of more restricted group of microbial species in comparison to primary infection .The microorganisms present in root canal treated teeth depends on the quality of the treatment and obturation of the canals. Teeth that has been poorly treated contains the organic and inorganic residual and the microflora are not completely eliminated which on suitable environment become more viable. These incompletely treated root canals harbor the similar microflora as in primary infection that may contain up to 30 species. But in the properly treated canal it shows

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