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Chapter-10 Working Length Determination

BOOK TITLE: Review of Endodontics and Operative Dentistry

Author
1. Garg Nisha
2. Garg Amit
ISBN
9788184483864
DOI
10.5005/jp/books/10735_10
Edition
1/e
Publishing Year
2008
Pages
4
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
2. Government Dental College, PGIMS, Rohtak, Haryana, India, Manav Rachna Dental College, Faridabad, Haryana, India, Sri Sukhmani Dental College and Hospital, Dera Bassi, Mohali, Punjab, India, Fortis Escorts Heart Institute, New Delhi, India
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Abstract

The determination of an accurate working length is one of the most critical steps of endodontic therapy. The cleaning, shaping, and obturation of the root canal system cannot be accomplished accurately unless the working length is determined precisely. The calculation determines how far into the canal the instruments are to be placed and worked and thus how deeply into the tooth the tissues, debris, metabolites, end products, and other unwanted items are removed from the canal. It will limit the depth to which the canal filling may be placed. If calculated within correct limits, it plays an important role in determining the success of the treatment and conversely, if calculated incorrectly may result in treatment failure.

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