Analysis of contamination of endodontic absorbent paper points

Érica Rodrigues Pereira, Cleber Keiti Nabeshima, Manoel Eduardo de Lima Machado


Purpose: The aim of this study was to assess the contamination status of endodontic absorbent paper points from sterilized or not sterilized commercial packs, as well as paper points exposed to the dental office environment.
Methods: Twenty absorbent paper points were evaluated for contamination status packed under different conditions: commercial/sterilized pack, commercial/non-sterilized pack, exposed to the clinical environment, and intentionally contaminated (positive control). Contamination was determined qualitatively and quantitatively by aerobiosis, capnophilic growth, and pour plate. The Petri dishes were analyzed with a colony counter, and the results were expressed as colony-forming units. The data were analyzed by Kruskal-Wallis test (α=0.05).
Results: No difference in colony-forming units was found among the groups of endodontic absorbent paper points. All groups were contaminated by fungi and bacteria.
Conclusion: It can be concluded that the sterilization of absorbent endodontic paper points before clinical use should be recommended regardless of commercial presentation.


Contamination; endodontics; sterilization

Full Text:


e-ISSN: 1980-6523

ISSN-L: 0102-9460


This journal is a member of, and subscribes to the principles of, the Committee on Publication Ethics (COPE)

SJR (SCImago Journal & Country Rank) IMPACT FACTOR:

SCImago Journal & Country Rank

Licença Creative Commons

Except where otherwise noted, content of this journal is licensed under a Creative Commons Attribution 4.0 International license.


Editorial Policies of Brazilian Scientific Journals. Deposit availability: Blue .


Copyright: © 2006-2020 EDIPUCRS