Effects of ozone and photo-activated disinfection against Enterococcus faecalis biofilms in vitro.
Niger J Clin Pract
; 18(6): 814-8, 2015.
Article
em En
| MEDLINE
| ID: mdl-26289524
ABSTRACT
OBJECTIVES:
The purpose of this study was to compare the antibacterial effects of gaseous ozone (O3) and photo-activated disinfection (PAD) methods against Enterococcus faecalis (E. faecalis) biofilms. MATERIALS ANDMETHODS:
Sixty-five human mandibular premolars with straight root canals were selected. After root canal preparation, the samples were sterilized and placed into eppendorf tubes with 1 mL brain heart infusion broth containing 1.5×10(8) colony-forming units (CFUs)/mL of E. faecalis. The contaminated samples were then divided into four groups (n=15) according to the disinfection method used Group 1, Saline (positive control); Group 2, NaOCl (negative control); Group 3, Gaseous O3; and Group 4, PAD. Three non-contaminated teeth were used to control the infection and sterilization process. The CFUs were counted and the data were analyzed statistically.RESULTS:
There was a statistically significant difference between the experimental and control groups (P<0.05). The saline group had the highest number of remaining microorganisms. Complete sterilization was achieved in the 2.5% NaOCl group. There were no statistically differences between PAD and gaseous O3 (P>0.05).CONCLUSION:
Both PAD and gaseous O3 have a significant antibacterial effect on infected root canals. However, 2.5% NaOCl was superior in terms of its antimicrobial abilities compared with the other disinfection procedures.
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Irrigantes do Canal Radicular
/
Desinfecção
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Enterococcus faecalis
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Biofilmes
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Preparo de Canal Radicular
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Cavidade Pulpar
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article