Course Progress
It is important to follow the DBC’s guidelines in order to prevent disease and cross-contamination in the DHS.
- Background: DUWLs can become colonized with microorganisms including bacteria, fungi, and protozoa. These microorganisms can form a biofilm in the waterline tubing. Patients with weakened immune systems who are exposed to these microorganisms are at risk of infection.
- Biofilm in Dental Waterlines: Biofilm is the “slime layer” that develops on surfaces due to the bacterial cells in the water.
- Moisture and a suitable surface are all that is required for biofilm to develop. The inside of dental tubing is an especially favorable location of biofilm.
- Reducing Bacterial Contamination: There are several methods to use to reduce bacterial contamination of water lines.
- Purge (push out) waterlines for two full minutes at the start of each day, and 20 seconds between patients.
- Use a self-contained water reservoir system.
- Use a self-contained water reservoir system combined with the application of chemical germicides or special inserts, etc, as recommended by the waterline manufacturer.
- Dental office water testing is also advised.
- All water/irritant delivery for surgical procedures must be delivered in a sterile manner. A separate, sterile water delivery system utilizing sterile solutions MUST be used for all for surgical procedures.
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