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Chapter-23 Endodontic Failures and Retreatment

BOOK TITLE: Textbook of Endodontics

Author
1. Garg Nisha
ISBN
9789380704234
DOI
10.5005/jp/books/11355_23
Edition
2/e
Publishing Year
2010
Pages
14
Author Affiliations
1. Ex-Resident, Government Dental College, Patiala, Presently at, Manav Rachna Dental College, Faridabad, Haryana, India, Manav Rachna Dental College, Faridabad, Haryana, India, Government Dental College, Patiala, Sri Sukhmani Dental College and Hospital, Dera Bassi, Mohali, Punjab, India, Bhojia Dental College and Hospital, Baddi, Himachal Pradesh, India
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Abstract

In recent years the number of people seeking endodontic treatment has dramatically increased because of the public’s choice of root canal treatment over tooth extraction. The complex root canal anatomy plays a significant role in endodontic success and failure. The definition of success is ambiguous; it has different meaning when referring to different criteria. For example success in endodontic therapy is ambiguous with requirements ranging from stringent (radiographic and clinical normalcy) to the lenient (only clinical normalcy). Obviously the more lenient definition increases the success rate when compared with the stringent one. Success is defined by goals established to be achieved. The usual goal of endodontic therapy is to prevent or heal the disease. Accordingly, endodontic treatment outcomes should be defined in reference to healing and disease. Endodontic failures can be attributable to in-adequacies in cleaning, shaping and obturation, pathogenic events or re-infection of the root canal system when the coronal seal is lost after completion of root canal treatment. Regardless of the initial cause, the sum of all causes is leakage. The rationale for non-surgical re-treatment is to remove the root canal space as a source of irritation to the attachment apparatus.

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