Podcast
Questions and Answers
What is the primary reason for flushing the handpiece with water between patients?
What is the primary reason for flushing the handpiece with water between patients?
- To flush out the sprayed lubricant inside the handpiece
- To flush out the bacterial spores that have lodged inside the turbines, air, and water lines
- To flush out patient fluids that might have entered the turbines, air, and water lines (correct)
- To flush out the sterilant that went inside the handpiece
Which sterilization method is capable of sterilizing the entire dental operatory simultaneously?
Which sterilization method is capable of sterilizing the entire dental operatory simultaneously?
- Dry heat
- Glutaraldehyde
- Autoclave (correct)
- UV sterilization
What is a significant advantage of using dry heat sterilization?
What is a significant advantage of using dry heat sterilization?
- Lower temperature
- Shorter cycle time
- May process wet instruments
- Does not dull cutting edges of instruments (correct)
What is NOT a rationale for flushing a handpiece with water?
What is NOT a rationale for flushing a handpiece with water?
Which of the following is least effective for immediate sterilization in a dental setting?
Which of the following is least effective for immediate sterilization in a dental setting?
Which of the following organisms is most resistant to disinfectants?
Which of the following organisms is most resistant to disinfectants?
What classification does a dental mouth mirror fall under?
What classification does a dental mouth mirror fall under?
Which sterilization method and cycle temperature correlation is incorrect?
Which sterilization method and cycle temperature correlation is incorrect?
What is the recommended sterilization method for heat-resistant critical and semicritical instruments?
What is the recommended sterilization method for heat-resistant critical and semicritical instruments?
Why should instruments be dried before sterilizing under Chemiclave?
Why should instruments be dried before sterilizing under Chemiclave?
What is a disadvantage of steam sterilization?
What is a disadvantage of steam sterilization?
Which chemical is described as a one-minute sterilant against Mycobacterium tuberculosis?
Which chemical is described as a one-minute sterilant against Mycobacterium tuberculosis?
What is the reason for using nitrile or butyl rubber gloves when handling glutaraldehyde?
What is the reason for using nitrile or butyl rubber gloves when handling glutaraldehyde?
Flashcards
Why flush handpieces?
Why flush handpieces?
Flushing handpieces between patients removes potential contaminants like sprayed lubricant, sterilant residues, bacterial spores, and patient fluids.
What sterilizes the whole operatory?
What sterilizes the whole operatory?
Autoclaves use high heat and pressure to sterilize instruments by killing all microorganisms.
Advantage of dry heat sterilization?
Advantage of dry heat sterilization?
Dry heat sterilization is gentle on instruments, meaning it preserves sharp edges.
What does dry heat sterilize?
What does dry heat sterilize?
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Disadvantage of Dry Heat?
Disadvantage of Dry Heat?
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Which organism is most resistant to disinfectants?
Which organism is most resistant to disinfectants?
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What classification is a dental mouth mirror?
What classification is a dental mouth mirror?
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Matching Sterilization Methods & Temperatures
Matching Sterilization Methods & Temperatures
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Best Sterilization for Heat-resistant Instruments
Best Sterilization for Heat-resistant Instruments
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Why dry instruments before Chemiclave?
Why dry instruments before Chemiclave?
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Disadvantages of Steam Sterilization
Disadvantages of Steam Sterilization
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Which sterilant is quick against Mycobacterium tuberculosis?
Which sterilant is quick against Mycobacterium tuberculosis?
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How does UV sterilization work?
How does UV sterilization work?
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Study Notes
Disinfectant Resistance
- Bacillus atrophaeus is most resistant to disinfectants among the listed options.
Dental Mouth Mirror Classification
- Dental mouth mirrors are classified as semicritical instruments.
Incorrect Sterilization Method/Temperature Correlation
- The incorrect correlation is Chemiclave: 180°C.
Sterilization Method for Heat-Resistant Instruments
- Autoclave is the sterilization method of choice for heat-resistant, critical, and semicritical instruments.
Chemiclave Drying Rationale
- Drying instruments before Chemiclave sterilization is crucial to ensure proper instrument dryness at the end of the cycle and prevent corrosion of metal instruments.
Disadvantages of Steam Sterilization
- Steam sterilization may dull sharp instruments and instruments are typically wet at the end of the sterilization cycle.
One-Minute Sterilant for Mycobacterium tuberculosis
- Glutaraldehyde is a one-minute sterilant against Mycobacterium tuberculosis.
DNA Inactivation Method
- Chemiclave (and UV sterilization, among others) destroys microorganisms by inactivating their DNA.
Glutaraldehyde Glove Rationale
- Nitrile or butyl rubber gloves should be worn when handling glutaraldehyde to protect against its toxicity, pungent smell, potential staining, and skin blistering risks.
Dry Heat Sterilization Prohibited Items
- Cloth, surgical burs, dental mouth mirrors, dental explorers should not be placed in a dry heat sterilizer.
Sterilization Method for Remote Missions
- For remote dental missions, autoclave is the best sterilization choice due to its dependability.
Handpiece Flushing Time
- The recommended handpiece flushing time between patients is 20-30 seconds.
Handpiece Flushing Rationale
- Flushing the handpiece with water between patients helps remove sprayed lubricant, patient fluids, sterilant, and bacterial spores.
Operatory-Wide Sterilization
- Quaternary ammonium compound and UV sterilization are NOT suitable for sterilizing the entire operatory at once. Autoclaves can be adapted, depending on the size of the operatory.
Dry Heat Sterilization Advantages
- Dry heat sterilization does not dull cutting edges, has a shorter cycle time, and uses a lower temperature than steam sterilization, and can handle instruments that are already dry.
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