Bacteriostatic effects of nanometer silver disinfectant on the biofilms in dental unit water lines.
Bacteriostatic effect
Bio-film
Dental unit water lines
Disinfectant
Nanometer silver
Journal
Journal of dental sciences
ISSN: 2213-8862
Titre abrégé: J Dent Sci
Pays: Netherlands
ID NLM: 101293181
Informations de publication
Date de publication:
Jan 2021
Jan 2021
Historique:
received:
19
02
2020
revised:
30
03
2020
entrez:
1
1
2021
pubmed:
2
1
2021
medline:
2
1
2021
Statut:
ppublish
Résumé
Dental unit water lines (DUWLs) may be contaminated by aerobic bacteria in clinical settings and comprehensive disinfecting methods should be considered without delay. Herein, this study aims to investigate the timeliness and dynamic bacteriostatic effects of different forms of nanometer silver (NMS) disinfectant on bio-film in DUWLs. Bacterial DUWLs samples were respectively treated with different NMS forms, including liquid phase and solid phase at the concentrations of 0.25%, 0.5%, 1% and 2% and their bacteriostatic effects were observed at the 1st, 4th, 7th, 14th, The bacteriostatic effects of liquid phase NMS at all concentrations were unsatisfactory and the bacteriostatic rate was only 20% at the 1st day. However, there appeared massive bacteria growth at the 4th, 7th, 14th, 28th day. Comparatively, no bacteria growth was found at the 1st, 4th, 7th, 14th, Microbial contamination in DUWLs can be disinfected by different NMS forms, among which solid phase NMS is more bactericidal against bacteria bio-films, demonstrating significant roles of solid phase NMS in preventing DUWL contamination.
Sections du résumé
BACKGROUND/PURPOSE
OBJECTIVE
Dental unit water lines (DUWLs) may be contaminated by aerobic bacteria in clinical settings and comprehensive disinfecting methods should be considered without delay. Herein, this study aims to investigate the timeliness and dynamic bacteriostatic effects of different forms of nanometer silver (NMS) disinfectant on bio-film in DUWLs.
MATERIALS AND METHODS
METHODS
Bacterial DUWLs samples were respectively treated with different NMS forms, including liquid phase and solid phase at the concentrations of 0.25%, 0.5%, 1% and 2% and their bacteriostatic effects were observed at the 1st, 4th, 7th, 14th,
RESULTS
RESULTS
The bacteriostatic effects of liquid phase NMS at all concentrations were unsatisfactory and the bacteriostatic rate was only 20% at the 1st day. However, there appeared massive bacteria growth at the 4th, 7th, 14th, 28th day. Comparatively, no bacteria growth was found at the 1st, 4th, 7th, 14th,
CONCLUSION
CONCLUSIONS
Microbial contamination in DUWLs can be disinfected by different NMS forms, among which solid phase NMS is more bactericidal against bacteria bio-films, demonstrating significant roles of solid phase NMS in preventing DUWL contamination.
Identifiants
pubmed: 33384816
doi: 10.1016/j.jds.2020.03.015
pii: S1991-7902(20)30065-9
pmc: PMC7770243
doi:
Types de publication
Journal Article
Langues
eng
Pagination
327-332Informations de copyright
© 2020 Association for Dental Sciences of the Republic of China. Publishing services by Elsevier B.V.
Références
Appl Environ Microbiol. 1995 Apr;61(4):1208-13
pubmed: 7747943
J Am Dent Assoc. 2004 Jan;135(1):33-47
pubmed: 14959873
Appl Environ Microbiol. 2000 Aug;66(8):3363-7
pubmed: 10919792
Environ Sci Technol. 2009 Oct 1;43(19):7285-90
pubmed: 19848135
Sci Total Environ. 2010 Feb 1;408(5):999-1006
pubmed: 19945151
J Am Dent Assoc. 2012 Oct;143(10):1127-38
pubmed: 23024311
JAMA. 2013 Nov 27;310(20):2191-4
pubmed: 24141714
Dent Mater. 2011 Jul;27(7):631-6
pubmed: 21501862
Gig Sanit. 2014 Nov-Dec;93(6):68-72
pubmed: 25950052
Water Res. 2011 Nov 1;45(17):5347-64
pubmed: 21920578
J Hosp Infect. 2002 Nov;52(3):192-205
pubmed: 12419272
Chemosphere. 2017 Apr;173:245-252
pubmed: 28110014
Future Microbiol. 2011 Oct;6(10):1209-26
pubmed: 22004039
Appl Environ Microbiol. 2003 Jun;69(6):3327-32
pubmed: 12788733
Dent Mater. 2012 May;28(5):561-72
pubmed: 22305716
Int J Biomater. 2015;2015:485275
pubmed: 25667594
J Indian Soc Pedod Prev Dent. 2010 Oct-Dec;28(4):258-63
pubmed: 21273713
Nanotechnology. 2005 Oct;16(10):2346-53
pubmed: 20818017
J Appl Microbiol. 2009 May;106(5):1424-37
pubmed: 19187140
Heliyon. 2019 Aug 21;5(8):e02306
pubmed: 31463403
J Indian Prosthodont Soc. 2015 Jul-Sep;15(3):263-7
pubmed: 26929523
Int Dent J. 2003 Aug;53(4):249-54
pubmed: 12953894
Int J Prosthodont. 2016 Jan-Feb;29(1):63-7
pubmed: 26757331
Mem Inst Oswaldo Cruz. 2017 Aug;112(8):537-543
pubmed: 28767978
Indian J Dent Res. 2016 Jan-Feb;27(1):91-9
pubmed: 27054868
Biomaterials. 2011 Aug;32(24):5706-16
pubmed: 21565401
Clin Infect Dis. 2011 Apr 15;52(8):1038-45
pubmed: 21460321