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Clinic 228 Exam 2

Quiz by Hailey Herrington

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141 questions
Show answers
  • Q1
    ULTRASONIC INSTRUMENTATION: The human ears hear below what frequency?
    20 kHz
    25 kHz
    30 kHz
    40 kHz
    30s
  • Q2
    ULTRASONIC INSTRUMENTATION: What mechanisms of action are used to disrupt tooth surface deposits during ultrasonic instrumentation?
    Oscillation and Water flow rate
    Microstreaming and Diameter Tip
    Mechanical and Biophysical forces
    Irrigation and Cavitation
    30s
  • Q3
    ULTRASONIC INSTRUMENTATION: Ultrasonic tip is selected by type of deposit and anatomy of the tooth. True or False?
    False
    True
    30s
  • Q4
    ULTRASONIC INSTRUMENTATION: Converting electrical current into high-frequency mechanical vibrations that are directed to the tip of the ultrasonic instrument briefly describes the method of action in ultrasonic scaling. True or False?
    False
    True
    30s
  • Q5
    ULTRASONIC INSTRUMENTATION: With a tip vertically adapted to a proximal root surface, the direction of the working stroke is______? Fill in the blank
    Oblique
    Horizontal
    Diagonal
    Vertical
    30s
  • Q6
    ULTRASONIC INSTRUMENTATION: Each of the following is a characteristic of an ultrasonic working stroke EXCEPT one. Which is the EXCEPTION?
    Executed in an apical-coronal direction
    Short, not exceeding 2 to 3 mm in length
    Overlapping
    Equally distributed
    30s
  • Q7
    ULTRASONIC INSTRUMENTATION: Horizontal adaptation is indicated for the debridement of interproximal surfaces and vertical adaptation is indicated for the proximal root surfaces. True or False?
    True
    False
    30s
  • Q8
    ULTRASONIC INSTRUMENTATION: The working strokes are implemented in a channeling pattern to_______? Fill in the blank.
    All are applicable
    Optimize the efficiency of the debridement procedure
    Thoroughly debride pockets deeper than 4mm
    Engage the active tip as much tooth surface as possible
    30s
  • Q9
    ULTRASONIC INSTRUMENTATION: Each of the following is an objective of ultrasonic root surface debridement EXCEPT one. Which one is the EXCEPTION?
    Disruption and removal of subgingival biofilm
    Planing of the root surface
    Resolution of inflammation
    Removal of plaque retentive factors
    30s
  • Q10
    ULTRASONIC INSTRUMENTATION: The formation of imploding microbubbles around the oscillating tips is a biophysical occurrence known as_______? Fill in the Blank
    Lavage
    Hydrodynamic force
    Acoustic microstreaming
    Cavitation
    30s
  • Q11
    ULTRASONIC INSTRUMENTATION: Each of the following components of ultrasonic scaling devices is common to both magneto-restrictive and piezoelectric devices EXCEPT one. Which is the EXCEPTION?
    Footswitch
    Handpiece
    Tip
    Insert
    30s
  • Q12
    ULTRASONIC INSTRUMENTATION: Modifying the power level control of an ultrasonic scaling unit increases/decreases the number of oscillations/second. True or False?
    False
    True
    30s
  • Q13
    ULTRASONIC INSTRUMENTATION: A common operating frequency of ultrasonic scaling units is 30 kHz, which means that the tip oscillates at a rate of 30,000 strokes/second. True or False?
    True
    False
    30s
  • Q14
    ULTRASONIC INSTRUMENTATION: Your patient presents for initial periodontal therapy with moderate-heavy calculus deposits in the mandibular anterior lingual sextant. Keeping he power level at the recommended medium-high setting, which tip design will fracture the calculus most efficiently?
    Standard diameter, straight geometry, rectangular shape, triple bend profile
    Standard diameter, straight geometry, circular shape, double bend profile
    Slim diameter, straight geometry, rectangular shape, triple bend profile.
    30s
  • Q15
    ULTRASONIC INSTRUMENTATION: To have an adequate variety of tips available for every appointment, you determine that you need at least 4 setups to get through a typical morning schedule. In an attempt to control costs, the owner/dentist asks you to keep the number of tips per setup to a minimum. Which of the following combinations will allow you to complete both stages of debridement in any area of the dentition with the fewest tip designs?
    Slim straight single bend + slim left curved + slim right curved
    Standard straight single bend + slim left curved + slim right curved
    Standard straight single bend + slim straight single bend + slim left curved + slim right curved
    standard straight single bend + slim straight single bend
    30s

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