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. 2009 Jan;37(1):33-7.

Microleakage of human saliva in coronally unsealed obturated root canals in anaerobic conditions

K Ashofteh Yazdi  1 , S Bayat-Movahed, M Aligholi, S J Hayes, M H Nekoofar
Affiliations
  • PMID: 19263626

Microleakage of human saliva in coronally unsealed obturated root canals in anaerobic conditions

K Ashofteh Yazdi et al. J Calif Dent Assoc. 2009 Jan.

Abstract

The purpose of this study was to determine the time required for anaerobic bacteria in natural human saliva to contaminate root-filled teeth. Thirty-two single-rooted teeth were cleaned, shaped, filled, and exposed to human saliva for 120 days. Teeth that had not leaked were subjected to polymerise chain reaction examination. Sixty-six percent of the experimental group were totally contaminated. A PCR examination revealed there was no contamination in the apical 3 mm of leakage-free teeth.

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