Endodontic plays a major role in uplifting the quality of oral health. Retherapy offers the patient a subsequentprospect to save a tooth that would otherwise be certain for extraction. The prime objective of retherapy isto gain entry to the apical foramen by absolute confiscation of the root canal packing substance thus easingsufficient disinfecting and shaping of the absolute root canal system and terminal obturation. It can beconcluded that with the emergence of modern instruments and techniques it is bygone just to extract teethsolely due to periapical disease and endodontic failures. Advances in scientific proficiency and technicalability have assisted us to improve the prognosis of treatment, but it does not always end up in the desiredhealing response while doing clinical practice
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