Microbial contamination of brand new nickel-titanium endodontic instruments

doi: 10.7417/CT.2019.2144

  • C. Passariello Department of Public Health and Infectious Diseases, ‘Sapienza’ University of Rome
  • D. Di Nardo Department of Oral and Maxillo Facial Sciences, ‘Sapienza’ University of Rome, Rome, Italy
  • G. Miccoli Department of Oral and Maxillo Facial Sciences, ‘Sapienza’ University of Rome, Rome, Italy
  • A. De Biase Department of Oral and Maxillo Facial Sciences, ‘Sapienza’ University of Rome, Rome, Italy
  • G. Gambarini Department of Oral and Maxillo Facial Sciences, ‘Sapienza’ University of Rome, Rome, Italy
  • L. Testarelli Department of Oral and Maxillo Facial Sciences, ‘Sapienza’ University of Rome, Rome, Italy

Abstract

Aims
This study aims to estimate the microbial presence on the surface of different brand new NiTi endodontic instruments for clinical use.


Materials and Methods
Eleven different types of NiTi rotary endodontic instruments, obtained from their fresh opened original packages, were assigned to three different groups, according to packaging type and sterilization and tested for bacterial contamination. Isolated bacteria were identified by using standard microbiological methods and then counted.
Differences observed in groups were analyzed statistically by using the one-way analysis of variance (ANOVA) for dependent samples and the Tukey HSD post hoc test.


Results
Statistical differences were found between instruments delivered in plastic boxes which bacterial count resulted higher than those obtained from instruments delivered in blisters (p<0.01).


Conclusions
Some brand new endodontic instruments showed degrees of bacterial contamination that both quantitatively and qualitatively deserve to be considered in clinical procedures

Published
2019-07-12
How to Cite
PASSARIELLO, C. et al. Microbial contamination of brand new nickel-titanium endodontic instruments. La Clinica Terapeutica, [S.l.], v. 170, n. 4, p. e258 - e261, july 2019. ISSN 1972-6007. Available at: <http://www.clinicaterapeutica.it/ojs/index.php/ClinicaTerapeutica/article/view/450>. Date accessed: 22 oct. 2019.
Section
Original Article