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Coronal leakage: bacterial penetration through obturated canals following post preparation
S P Gish1, D R Drake, R E Walton
1Department of Endodontics, College of Dentistry, University of Iowa, Iowa City.
Journal of the American Dental Association (1939)
|October 1, 1994
Abstract:
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.