Dentistry: Articulators and Jaw Movements
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Questions and Answers

What is the optimal speaking space according to Silverman?

  • 2-3 mm
  • 4-5 mm
  • 1 mm (correct)
  • 1-2 mm

    • What is the result of a decrease in vertical dimension on the TMJ?

  • No effect
  • Improved function
  • Relaxation
  • Trauma (correct)

    • What happens to the muscles between the anteriors due to loss of vertical dimension?

  • No change in muscle tone
  • Loss of muscle tone (correct)
  • Increase in muscle tone
  • Muscle paralysis

    • What is affected by the presence of space during production of certain sounds?

    <p>Eustachian tube</p> Signup and view all the answers

    What is the consequence of reduced speaking space on the oral cavity?

    <p>Loss of space</p> Signup and view all the answers

    What is the result of premature contact of the anterior teeth?

    <p>Strained facial muscles</p> Signup and view all the answers

    What type of articulator requires a CR record, at least 2 lateral records, and some means for controlling the height and inclination of the cusps?

    <p>Fully Adjustable</p> Signup and view all the answers

    What is the main characteristic of a Simple Hinge articulator?

    <p>Can only be opened and closed</p> Signup and view all the answers

    What is the condylar guidance angle in a Mean Value articulator?

    <p>30 degrees</p> Signup and view all the answers

    What is the purpose of a face-bow transfer in a Semi Adjustable articulator?

    <p>To record the condylar guidance</p> Signup and view all the answers

    What is the formula used to determine the lateral condylar guidance in programming the articulator?

    <p>H/8+12</p> Signup and view all the answers

    What is the name of the device used to produce tracings called pantograms?

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

    What is the primary function of an articulator in prosthodontics?

    <p>To replicate the natural movements of the temporomandibular joint</p> Signup and view all the answers

    Which part of an articulator represents the maxilla and mandible?

    <p>Upper and lower arm/member</p> Signup and view all the answers

    What is the purpose of the condylar guidance on an articulator?

    <p>To represent the slope of the articular eminence</p> Signup and view all the answers

    What type of movement is replicated by the translatory movement on an articulator?

    <p>Translatory movement forward or protrusive</p> Signup and view all the answers

    What is the function of the incisal guide table on an articulator?

    <p>To represent the lingual slopes of the maxillary anterior teeth</p> Signup and view all the answers

    What is the purpose of the mounting plates on an articulator?

    <p>To connect the casts to the articular arm</p> Signup and view all the answers

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