Bacterial colonisation of root canal dentine previously treated with endodontic irrigants
作者： Brian J. Rasimick , Rinal P. Shah , Barry L. Musikant , Allan S. Deutsch
DOI: 10.1111/J.1747-4477.2009.00193.X
关键词:
摘要: Certain irrigants leave antimicrobial residues on dentine. This study assessed if from MTAD, Endo-CHX, Peridex Oral Rinse or 6% NaOCl were inactivated by exposure to simulated leakage. Extracted teeth (15/group) cut and drilled produce a cylindrical canal space. They irrigated, dried with paper points transferred into 1 mL of leakage (Enterococcus faecalis in tryptic soy broth) every 24 h. After one, two three transfers, the number colony forming units was measured drilling space recovering dentine shavings antimicrobial-inactivating broth. Two-way anova log-transformed data showed irrigation method, volume their interaction significant factors (P < 0.001). Compared positive control, logarithmic reductions E. colonies after first third millilitre were: Endo-CHX 6.2 2.4; MTAD 3.4 2.7; 1.6 0.4; 1.0 0.0.
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