The Journal of the American Dental Association
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J Am Dent Assoc, Vol 125, No 10, 1369-1372.
© 1994 American Dental Association
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Journal of the American Dental Association, Vol 125, Issue 10, 1369-1372
Copyright © 1994 by American Dental Association

Journal Article

Coronal leakage: bacterial penetration through obturated canals following post preparation



SP Gish, DR Drake, RE Walton, and L Wilcox
Department of Endodontics, College of Dentistry, University of Iowa, Iowa City.

Coronal leakage of bacteria from saliva into root canal filling materials is a potential cause of failure. This problem may be more pronounced when only a small volume of obturating material remains in the canal, such as after post preparation. In this study, coronal leakage of bacteria through unsealed, apically obturated canals was investigated using a new in vitro model system.




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