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What is the primary function of the first 3mm of the working end in dental tools?
What is a key feature of periodontal probes that enhances their function?
What is an advantage of the rounded edge on periodontal probes?
Which part of the working end is specifically designed for debridement?
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How can the performance of dental tools be described based on their anatomical features?
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Which of the following describes the working end of a periodontal probe?
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What type of instrument is commonly used alongside periodontal probes for deposit removal?
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What component of the working end contributes to its effectiveness in procedures?
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Which aspect makes explorers particularly useful in clinical assessments?
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In the context of dental tools, what does the term 'face' refer to?
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What shape variant can a periodontal probe have?
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Which of the following statements about dental working ends is NOT true?
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What is NOT a function of periodontal probes?
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In addition to their primary function, what is an additional utility of a ruler in periodontal assessment?
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What characterizes the working edge of site specific curettes?
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Which of the following statements is true regarding the use of site specific curettes?
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What features distinguish the Gracey 1/2 curette from other instruments?
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Which aspect is NOT a characteristic of site specific curettes?
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For which types of teeth is the simple shank-anterior curette designed?
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Which feature is common among site specific curettes?
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What feature of the calculus allows it to be used without causing trauma to the gingival tissue?
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Which of the following correctly describes the cross-section of a Universal Curette?
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What type of curette is specifically noted for minimizing trauma and protecting soft tissue?
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Which characteristic is NOT associated with the working end of molars?
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In periodontal treatments, why is it essential for instruments to minimize tissue trauma?
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What is key to ensuring detailed access during dental procedures?
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Which curette is named specifically to reach subgingival areas effectively?
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What design aspect of the curette helps in preventing excessive cutting into the dentine?
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What advantage does a rounded toe of a curette offer during dental procedures?
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Which design feature is primarily for cleaning in difficult-to-access areas during dentistry?
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Study Notes
Working End
- Most instruments use the first 3mm of the working end
- The working end comes in different shapes, such as a sickle, a universal curette, and a site-specific curette.
Working End Micro Anatomy
- The working end has a face, lateral surface, cutting edge, toe/tip, middle, and heel.
Periodontal Instruments
- There are three types of periodontal instruments: explorers, sickles, and curettes.
- Each type of instrument has a specific purpose.
- Explorers are used to assess the sulcus or pocket and detect caries.
- Sickles are used for removing large deposits of calculus.
- Curettes are used for removing smaller deposits of calculus.
Periodontal Probes
- Periodontal probes are assessment instruments.
- The round shape of the probes helps to minimize trauma.
- The probes are used to measure the depth of the sulcus or pocket and the position of the gingival margin.
Universal Curets
- Universal curettes have a rounded back, two cutting edges, a rounded toe, and a semi-circular cross-section.
- Universal curettes can be used on a variety of surfaces in the mouth.
- Examples of universal curettes include the Columbia 4-4R, the McCall 135-14S, and the Barnhart.
Site-Specific Curettes
- Site-specific curettes are designed for specific surfaces and areas of the mouth.
- Site-specific curettes have a longer, more complex shank design.
- Examples of site-specific curettes include Gracey curettes, the After Fives , and the Quetin furcation curettes.
Gracey Curettes
- Gracey curettes have a small working end and a long, complex shank.
- Gracey curettes are only used subgingivally.
- Gracey 1/2 curette is typically used on anterior teeth.
- Gracey 5/6, 9/10, and 11/12 curettes are typically used on posterior teeth.
- Gracey 13/14 curette is typically used on distal surfaces of posterior teeth.
- Gracey 11/12 curette pairs with the 13/14 curette.
Instrument Maintenance
- Periodontal instruments require care and maintenance to be effective.
- Instrument maintenance includes sharpening, cleaning, and sterilization.
- Refer to the ergonomics and sharpening lecture for detailed information on instrument maintenance.
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Description
This quiz focuses on the anatomy and types of periodontal instruments, including explorers, sickles, and curettes. Understand the specific functions of these instruments and the micro anatomy of their working ends. Test your knowledge on how to utilize these tools effectively in dental practice.
