Introduction of the obturation material to the oral environment may mean the gutta-percha is contaminated with oral bacteria. In the event that mind boggling and costly restorative dentistry is contemplated, then ideally the contaminated gutta percha would be replaced in a retreatment procedure to minimize the risk of failure. Endodontic retreatment is technically demanding; it very well may be a tedious procedure, as fastidious care is required by the dentist. Re-treatment cases are typically alluded to a specialist endodontist. Utilization of an operating magnifying lens or other magnification may improve results.
The sort of bacteria found within a failed canal may vary from the normal infected tooth. Enterococcus faecalis and/or other facultative enteric bacteria or Pseudomonas sp. are found in this situation. Many root canal procedures are done in one dental visit which may last for around 1–2 hours. More up to date innovations are available that allow progressively proficient, logical measurements to be taken of the dimensions of the root canal, anyway , the utilization of CT scanning in endodontics has to be justified. Laser root canal procedures are a controversial innovation. Lasers may be fast however have not been appeared to altogether disinfect the entire tooth, and may cause damage.