全新镍钛根管器械的微生物污染

Microbial contamination of brand new nickel-titanium endodontic instruments.

作者信息

Passariello C, Di Nardo D, Miccoli G, De Biase A, Gambarini G, Testarelli L

机构信息

Department of Public Health and Infectious Diseases, 'Sapienza' University of Rome.

Department of Oral and Maxillo Facial Sciences, 'Sapienza' University of Rome, Rome, Italy.

出版信息

Clin Ter. 2019 Jul-Aug;170(4):e258-e261. doi: 10.7417/CT.2019.2144.

DOI:10.7417/CT.2019.2144

PMID:31304512

Abstract

AIMS

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

MATERIAL 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.

摘要