Dental Assisting Quiz on Clinical Surfaces and Equipment
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Questions and Answers

What device is used in the lab to hold dental models and reproduce the position of the mandible in relation to the maxilla?

  • Articulator (correct)
  • Dental cast
  • Bite registration
  • Face bow
  • Which of the following options is primarily used for mapping the occlusal relationship between the dental arches?

  • Face bow
  • Bite registration (correct)
  • Articulator
  • Dental cast
  • What is one of the three clinical surface categories classified by OSAP?

  • Clean and rinse
  • Touch and transfer (correct)
  • Surface sterilization
  • Fluid barrier
  • What is the purpose of an articulator in dental practice?

    <p>To hold models and assess jaw relation</p> Signup and view all the answers

    What must be closely monitored due to exothermic properties during mixing?

    <p>Cement</p> Signup and view all the answers

    Which category is NOT classified by OSAP among clinical surface categories?

    <p>Surface disinfection</p> Signup and view all the answers

    How many clinical surface categories are classified by OSAP?

    <p>Three</p> Signup and view all the answers

    Which device is not primarily used for reproducing jaw positions?

    <p>Dental cast</p> Signup and view all the answers

    Which of the following categories refers directly to how contact surfaces interact with potential contaminants?

    <p>Touch and transfer</p> Signup and view all the answers

    Which of the following is categorized as an aspect of clinical surfaces according to OSAP?

    <p>Droplet</p> Signup and view all the answers

    What is the optimal application time for topical anesthetic to achieve effectiveness?

    <p>60-120 seconds</p> Signup and view all the answers

    If a dental assistant applies topical anesthetic for 45 seconds, what is the likely outcome?

    <p>Insufficient anesthesia may occur</p> Signup and view all the answers

    Which of the following durations is NOT recommended for applying topical anesthetic?

    <p>90-150 seconds</p> Signup and view all the answers

    What duration is at the low end of the recommended timeframe for topical anesthetic application?

    <p>60-120 seconds</p> Signup and view all the answers

    If a dental procedure requires deeper anesthesia, how will the topical anesthetic application time likely change?

    <p>It will remain the same as 60-120 seconds</p> Signup and view all the answers

    What is a primary use of utility wax in dental procedures?

    <p>Extending borders of an impression tray</p> Signup and view all the answers

    Which of the following is NOT a use of utility wax?

    <p>Polishing dental crowns</p> Signup and view all the answers

    Utility wax is characterized by which of the following properties?

    <p>Pliable nature and tacky consistency</p> Signup and view all the answers

    In what situation would you likely use utility wax?

    <p>During the taking of dental impressions</p> Signup and view all the answers

    Which statement about utility wax is true?

    <p>It can help in extending the borders of dental impression trays.</p> Signup and view all the answers

    Which medical condition should avoid the use of epinephrine in local anesthetic?

    <p>Heart disease</p> Signup and view all the answers

    Why is epinephrine contraindicated in patients with heart disease when used in local anesthetics?

    <p>It constricts blood vessels, increasing strain on the heart.</p> Signup and view all the answers

    Which of the following is NOT a condition that contraindicates the use of epinephrine?

    <p>High cholesterol</p> Signup and view all the answers

    What effect does epinephrine have that may be harmful to patients with heart conditions?

    <p>Causes rapid heart rate and increased blood pressure</p> Signup and view all the answers

    Which of these conditions is least likely to be affected by the use of epinephrine in local anesthetic?

    <p>Asthma</p> Signup and view all the answers

    What is dental stone primarily used for?

    <p>Making durable diagnostic casts</p> Signup and view all the answers

    Which color is typically associated with dental stone?

    <p>Yellow</p> Signup and view all the answers

    How does dental stone compare to die stone?

    <p>Dental stone creates a more durable cast than die stone</p> Signup and view all the answers

    Which of the following is NOT a characteristic of dental stone?

    <p>It is primarily used for making dental cements</p> Signup and view all the answers

    Which type of gypsum product is less durable than dental stone?

    <p>Impression plaster</p> Signup and view all the answers

    Which polishing paste is recommended for polishing porcelain?

    <p>Sapphire or diamond</p> Signup and view all the answers

    Which of the following is NOT an appropriate polishing paste for porcelain?

    <p>Sodium bicarbonate</p> Signup and view all the answers

    What is a common use of sapphire or diamond paste in dental procedures?

    <p>Polishing porcelain</p> Signup and view all the answers

    Which polishing material is typically favored for its effectiveness on porcelain?

    <p>Sapphire or diamond</p> Signup and view all the answers

    In dental assisting, what type of polishing paste would be inappropriate to use on porcelain?

    <p>Silicon carbide</p> Signup and view all the answers

    Which impression material is preferred for achieving high precision in dental impressions?

    <p>Elastomeric</p> Signup and view all the answers

    What property makes elastomeric impression materials suitable for precise impressions?

    <p>Elasticity and accuracy</p> Signup and view all the answers

    Which of the following impression materials is NOT recommended for precision impressions?

    <p>Alginates</p> Signup and view all the answers

    What is a primary characteristic of elastomeric impression materials?

    <p>High elasticity</p> Signup and view all the answers

    In what scenario would elastomeric impression materials be essential?

    <p>When a precise final impression is crucial</p> Signup and view all the answers

    What device is used to hold dental models and reproduce the position of the mandible to the maxilla?

    <p>Articulator</p> Signup and view all the answers

    Which of the following is NOT a dental laboratory device used for reproducing jaw relationships?

    <p>Articulating paper</p> Signup and view all the answers

    What is the primary function of an articulator in dental practice?

    <p>To hold dental models in position</p> Signup and view all the answers

    In dental laboratories, which device is ideal for establishing the occlusal relationship between the upper and lower jaws?

    <p>Articulator</p> Signup and view all the answers

    What is the significance of using an articulator during dental procedures?

    <p>It allows for accurate jaw position reproduction</p> Signup and view all the answers

    What is the maximum speed of a slow-speed handpiece?

    <p>30,000 rpm</p> Signup and view all the answers

    Which of the following speed ranges correctly describes the operation of a slow-speed handpiece?

    <p>10,000 - 30,000 rpm</p> Signup and view all the answers

    At which speed does the slow-speed handpiece NOT operate?

    <p>5,000 rpm</p> Signup and view all the answers

    Which speed range is incorrect for a slow-speed handpiece?

    <p>10,000 - 40,000 rpm</p> Signup and view all the answers

    Study Notes

    Topical Anesthetic Application Time

    • Topical anesthetic should be placed on the injection site for 60-120 seconds to ensure optimal effectiveness.

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    Description

    Test your knowledge on essential dental assisting topics, including the categorization of clinical surfaces by OSAP, the use of articulators, and the properties of dental materials. This quiz covers various key concepts related to dental models, occlusal relationships, and anesthesia application times.

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