Effect of in-line bacteriological filters on numbers of heterotrophic bacteria in water emitted from non-autoclavable dental air-water syringes.
Am J Dent
; 12(5): 256-60, 1999 Oct.
Article
en En
| MEDLINE
| ID: mdl-10649918
ABSTRACT
PURPOSE:
To determine the effect of in-line bacteriological filters on the heterotrophic bacterial count of water from non-autoclavable dental air-water syringes. MATERIALS ANDMETHODS:
In-line bacteriological filters were placed in the waterlines of non-autoclavable dental air-water syringes. Filters were placed either as close as possible to the air-water syringe or at a distance of approximately 6 feet (1.8 meters) from the air-water syringe. After routine flushing of water lines and air-water syringes, water samples were collected aseptically. Samples were diluted, plated on NWRI agar, and incubated, and numbers of heterotrophic bacteria per ml were determined.RESULTS:
Filtration substantially reduced heterotrophic contamination of air-water syringe water when the filter was placed immediately adjacent to the air-water syringe. However, there was no beneficial effect when the filter was at a distance from the air-water syringe. Furthermore, filtered water containing no detectable heterotrophic bacteria was re-contaminated upon passage through the non-autoclavable air-water syringe.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Jeringas
/
Microbiología del Agua
/
Instrumentos Dentales
/
Filtración
Idioma:
En
Revista:
Am J Dent
Asunto de la revista:
ODONTOLOGIA
Año:
1999
Tipo del documento:
Article