Content Introduction Infection Control Program in Dental Laboratory Communication with the Dental Laboratory Introduction Infection control IC is an essential part of dentistry Potential for disease transmission in the dental lab is well documented ID: 1044955
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1. Infection Control in Dental Laboratory
2. Content Introduction.Infection Control Program in Dental Laboratory.Communication with the Dental Laboratory.
3. Introduction Infection control (IC) is an essential part of dentistry.Potential for disease transmission in the dental lab is well documentedPotential pathogens can be transported to lab via orally soiled impressions, dental prostheses/appliancesMicroorganisms can be transferred from contaminated impressions to dental casts.
4. 2/17/20214General Directorate of Infection Prevention And Control
5. 2/17/20215General Directorate of Infection Prevention And Control
6. 2/17/20216General Directorate of Infection Prevention And Control
7. 2/17/20217General Directorate of Infection Prevention And Control
8. Receiving AreaThe receiving area should be separate from the production area.Persons working in the receiving area should:wear PPE.remove their PPE before moving to an uncontaminated area of the lab.This receiving area should have running water and hand-washing facilities. Countertops and work surfaces should be covered with impervious paper if possible, cleaned and disinfected once or twice daily.Incoming cases should be unpackaged carefully and handled in an aseptic manner. Unless the case was labeled as disinfected in the dental clinic, it should be cleaned and disinfected immediately on receipt. Packing materials should be discarded to avoid cross-contamination.
9. Production AreaSeparate areas should be designated for new work and repairs inside the production area. If this area is separated adequately and all incoming cases are known to have been disinfected, DHCP can handle new cases as noninfectious once they have been decontaminated.full PPE should be used when handling these items, and every effort should be made to avoid cross-contamination from such items.All work surfaces should be cleaned and disinfected with a disinfectant on a regular basis but at least once or twice daily. Plastic wrap or other barrier can be used to cover work surfaces for simplifying cleanup.Any instruments, attachments, and materials to be used with new prostheses/appliances should be maintained separately from those to be used with prostheses/appliances that have already been inserted in the mouth. Equipment's should be cleaned and sterilized or disinfected as appropriate, usually once or twice a day and after each case for repairs.Disposable items are available, such as polishing wheels and brushes, eliminating the need for cleaning and disinfection of the reusable items
10. Shipping AreaThis area is designed for final inspection, cleaning and disinfection of prostheses and appliances.The disinfected devices should be shipped in a labeled and sealed plastic bag (information such as type of disinfectant used, disinfection method, and duration should all be mentioned).Disinfected acrylic items should be stored and shipped in a sealed bag containing a small amount of diluted mouthwash. Disinfected items should never be shipped in sealed bag containing disinfectant. Only new packing material should be used to avoid cross contamination
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12. Steam Sterilization (Autoclave)Water bath basinsStainless steel bowelsBoley gaugesMetal rulersMetal spatulasOcclusal plane guidesOrthodontic pliersImpression guns
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14. Non-Critical Instruments (Frequently become contaminated) ArticulatorsFace-bowsLathesCase pansPressure potsWater bathsShade guide (spray-wipe spray with phenolics or iodophors)Wooden-handled spatulasRubber mixing bowlsTorch
15. Discarded Items Plastic impression traysCustom traysDisksBrushesWaxes
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18. AdvantagesUses less disinfectantSame disinfectant can often be used to disinfect environmental surfacesUses less solutionDisadvantagesProbably not as effective as immersionCan be released into air increasing occupational exposure.Releases disinfectant into the air.May “miss” areasSpray Disinfection The impression must be sprayed with disinfectant on all sides until it is thoroughly wet and then covered (wrapped with plastic or otherwise enclosed) to avoid drying and allow exposure for the recommended disinfection time.General Directorate of Infection Prevention And Control
19. Immersion MethodThe immersion method is the preferred method of disinfection.The time for exposure to a particular disinfectant (i.e., the immersion time) should be at least that recommended by the product manufacturer.
20. Rinse thoroughlyRinse under water 15 secondsImmerse in disinfectant 10 minutes( keep covered or place inside bag)Impressions
21. dipped or sprayedWhen working with alginate, if accuracy is extremely important…covered with damp paper towel for ten minutesRinse ImpressionsRinse-spray-rinseRinse
22. Immersion or spraying??ImmersionDistorts some materialsFully covers all surfacesThe method of choice if the material will allow itProcedure:Immerse in plastic bag for the time recommended.Rinse thoroughlySprayingUses less solutionReleases disinfectant into the airMay “miss” areasProcedureSpray completely and wrap in well-moistened paper towel.Rinse after appropriate time has passed.
23. Chemical DisinfectantsExamples of acceptable disinfectants are:Sodium hypochlorite (in concentrations ranging from 0.05% to 0.5% (500 to 5,000 ppm) diluted with water) , Iodophor (1% stock iodine diluted to the range of 0.05% to 0.5% in 70% isopropyl alcohol) and Phenolics.
24. Choice of Disinfectant for ImpressionsThe effect of the treatment on the dimensional stability and surface detail of the impression.The effectiveness of the antimicrobial agent, and the deactivating effect of the impression material on the disinfecting solution, which could reduce the efficacy of the process.
25. Incoming ItemsRinse under running tap water to remove blood/salivaDisinfect as appropriateRinse thoroughly with tap water to remove residual disinfectantNo single disinfectant is ideal or compatible with all itemsAnnotate the DD Form 2322: “Disinfected with ______ for _____minutes”
26. Outgoing items Clean and disinfect before delivery to patientAfter disinfection: rinse and place in plastic bag with diluted mouthwash until insertionDo not store in disinfectant before insertionLabel the plastic bag: “This case shipment has been disinfected with ______ for _____ minutes”
27. Any Questions