Fixed Prosthodontics and Cerec Technology
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Questions and Answers

What advantage do Cerec crowns have over traditional composite fillings?

  • They are easier to apply
  • They are cheaper upfront
  • They are made of metal
  • They offer a more natural-looking result (correct)
  • What is the primary role of abutment teeth in a fixed bridge?

  • To facilitate oral cleaning
  • To replace the missing teeth entirely
  • To provide extra dental hygiene support
  • To support and anchor the bridge (correct)
  • Which type of bridge is most commonly used when replacing multiple missing teeth?

  • Flexible bridge
  • Fixed bridge (correct)
  • Temporary bridge
  • Resin-bonded bridge
  • What should be considered before designing a fixed bridge?

    <p>The patient's periodontal bone health and occlusion</p> Signup and view all the answers

    Which of the following best describes a fixed bridge?

    <p>A prosthesis made up of several units joined for strength</p> Signup and view all the answers

    How many abutments are typically needed for a short bridge that replaces one tooth?

    <p>Two abutments</p> Signup and view all the answers

    What is a recommended approach for longer bridges involving more than one missing tooth?

    <p>Incorporating a double abutment for anterior support</p> Signup and view all the answers

    Which condition indicates that a bridge may be necessary?

    <p>Extensive dental damage requiring more than a crown</p> Signup and view all the answers

    A dentist is likely to recommend a bridge for a patient who _____.

    <p>is missing one or more teeth in the same arch</p> Signup and view all the answers

    In a fixed bridge, the units represent the number of _____ involved.

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

    The teeth that support a bridge are known as _____ or retainers.

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

    Which statement accurately describes a pontic?

    <p>It is an artificial tooth in a bridge.</p> Signup and view all the answers

    What denotes the main disadvantage of a resin-bonded or Maryland bridge?

    <p>It is often difficult to bond properly to the supporting teeth.</p> Signup and view all the answers

    Compared to regular restorations, inlays and onlays typically _____ natural tooth structure.

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

    How does an onlay differ from an inlay?

    <p>An onlay covers more tooth structure than a three-quarter crown.</p> Signup and view all the answers

    What serves the primary function of a veneer in dentistry?

    <p>It covers imperfections for cosmetic purposes.</p> Signup and view all the answers

    What is a pontic in dental terms?

    <p>An artificial tooth replacing a missing tooth</p> Signup and view all the answers

    Which type of pontic allows for easier cleaning between the pontic and the gingiva?

    <p>Hygienic pontic</p> Signup and view all the answers

    Why are resin-bonded bridges infrequently used in dentistry?

    <p>They are not predictable and often need re-cementing</p> Signup and view all the answers

    What is a primary indication for using a fixed prosthodontic treatment like inlays or onlays?

    <p>There is not enough healthy tissue to support a regular restoration</p> Signup and view all the answers

    Which of the following statements about cosmetic pontics is true?

    <p>They are designed to resemble full teeth.</p> Signup and view all the answers

    Which type of bridge is characterized by having resin wing-like extensions?

    <p>Maryland bridge</p> Signup and view all the answers

    What is necessary to prepare before taking an impression for a resin-bonded bridge?

    <p>A small amount of the lingual side of the teeth</p> Signup and view all the answers

    What is the maximum extent of tooth destruction suitable for inlays and onlays?

    <p>Less than half the distance between cusp tips</p> Signup and view all the answers

    Study Notes

    Cerec Technology

    • Cerec technology uses ceramic to make crowns more durable than composite fillings.
    • Cerec technology can save money by reducing laboratory fees.

    Fixed Prosthodontic Treatment: Bridges

    • Bridges are used to replace missing teeth in the same arch.
    • Fixed Bridge
      • A fixed bridge uses multiple units joined together, the number of units is based on the number of teeth missing.
      • Abutments (anchor teeth) can be natural teeth or titanium cylinders placed on dental implants.
      • Did You Know? A good rule of thumb for longer bridges (more than one tooth missing) is to use one abutment on the posterior and a double abutment on the anterior portion of the bridge to support the missing teeth.
    • Resin-Bonded Bridge
      • Also known as a Maryland bridge.
      • Contains a resin or porcelain pontic bonded to the lingual surfaces of the adjacent teeth with resin wings.
      • Not used often because it is unpredictable and often needs re-cementing.
      • Most commonly used to replace missing front teeth.

    Fixed Prosthodontic Treatment: Inlays, Onlays, and Veneers

    • These restorations are permanent, unable to be reshaped or removed by the patient.
    • Inlays
      • Replace missing tooth structure within the tooth.
      • Used when there is not enough healthy tissue for a regular restoration but not enough damage to require a crown.
      • Ideal when tooth destruction is less than half the distance between cusp tips.
    • Onlays
      • Similar to inlays, replacing missing tooth structure.
      • Cover more of the tooth than inlays.
    • Veneers
      • Thin layers of composite or porcelain placed over a tooth for cosmetic purposes.

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    Description

    This quiz covers key concepts in fixed prosthodontics, including the use of Cerec technology for durable crowns and different types of dental bridges. Learn about fixed bridges and resin-bonded bridges, their structures, and clinical applications. Understand how these technologies can benefit dental treatments and patient outcomes.

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