Dental Implant Impressions
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Questions and Answers

What is the primary advantage of the open-tray technique in implant impressions?

  • It eliminates the need for x-ray confirmation of transfer seating
  • It enables extra-oral abutment selection in the lab
  • It reduces the effect of implant angulation and deformation of impression material (correct)
  • It allows for the fabrication of custom abutments
  • What is the purpose of the transfer coping in the open-tray technique?

  • To provide retention for the impression material
  • To transfer the impression to the master cast (correct)
  • To act as a locator for the implant analog
  • To create a snap-on impression cap
  • What type of abutment selection is facilitated by the implant-level impression technique?

  • Extra-oral abutment selection in the lab (correct)
  • Custom abutment fabrication using UCLA abutment
  • Intra-oral abutment selection during impression taking
  • Abutment selection based on x-ray confirmation of transfer seating
  • What is the main difference between the open-tray and closed-tray techniques in implant impressions?

    <p>The presence or absence of a transfer coping</p> Signup and view all the answers

    What is the purpose of the implant analog in the impression technique?

    <p>To create a replica of the implant in the master cast</p> Signup and view all the answers

    What is the primary advantage of the abutment-level impression technique?

    <p>It reduces the effect of implant angulation</p> Signup and view all the answers

    What is the primary purpose of an impression in implant dentistry?

    <p>To transfer the position and design of the implant or abutment to the master cast</p> Signup and view all the answers

    What type of abutment is typically fabricated using the UCLA abutment?

    <p>Custom abutment</p> Signup and view all the answers

    What is the term for the component used to transfer information on position and design of the implant or abutment to the master cast?

    <p>Transfer coping</p> Signup and view all the answers

    Which of the following is NOT a characteristic of a closed-tray impression?

    <p>The tray is rigidly attached to the transfer coping</p> Signup and view all the answers

    What is the purpose of the access holes in the open-tray technique?

    <p>To allow for the escape of excess impression material</p> Signup and view all the answers

    What is the primary limitation of the abutment-level impression technique?

    <p>It requires x-ray confirmation of transfer seating</p> Signup and view all the answers

    What is the advantage of using an open-tray technique over a closed-tray technique?

    <p>It reduces the risk of impression material distortion</p> Signup and view all the answers

    What type of attachment is used to position the implant analog in the transfer technique?

    <p>Locator attachment</p> Signup and view all the answers

    What is the purpose of an implant analog in the master cast?

    <p>To serve as a replica of the implant or abutment in the master cast</p> Signup and view all the answers

    Which of the following is a characteristic of an implant-level impression?

    <p>It captures the position, depth, angulation, and hex position of the implant</p> Signup and view all the answers

    What is the term for the direct technique of implant-level impression, where the transfer coping is screwed into the implant and remains in the patient's mouth after removal of the impression?

    <p>Open-tray technique</p> Signup and view all the answers

    What is the primary advantage of using a digital impression in implant dentistry?

    <p>It reduces the chair time required for the impression procedure</p> Signup and view all the answers

    What is the term for the indirect technique of implant-level impression, where the transfer coping is connected to the implant analog and reinserted in the impression?

    <p>Closed-tray technique</p> Signup and view all the answers

    What is the purpose of the abutment analog in the master cast?

    <p>To serve as a replica of the abutment in the master cast</p> Signup and view all the answers

    What is the primary indication for an abutment-level impression in implant overdentures?

    <p>Transmucosal abutments for screw-retention</p> Signup and view all the answers

    Which of the following digital impression techniques involves scanning an impression with analogues to create a cast?

    <p>Lab scan</p> Signup and view all the answers

    What is the purpose of a scan body in digital impressions?

    <p>To fit precisely into the dental implant fixture</p> Signup and view all the answers

    Which type of impression technique is commonly used for cement-retained restorations with untouched abutments?

    <p>Abutment-level impression</p> Signup and view all the answers

    What is the primary advantage of using digital impressions in implant restorations?

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

    What is the purpose of an implant analogue in implant prosthodontics?

    <p>To replicate the implant fixture in the laboratory</p> Signup and view all the answers

    Which of the following is a contraindication for abutment-level impressions?

    <p>Cement-retained restorations with touched abutments</p> Signup and view all the answers

    What is the difference between an open-tray technique and a closed-tray technique?

    <p>The way the impression is transferred to the laboratory</p> Signup and view all the answers

    Which of the following is a type of impression coping used in implant prosthodontics?

    <p>Transfer coping</p> Signup and view all the answers

    What is the primary consideration when selecting an abutment for implant restorations?

    <p>The type of prosthetic superstructure</p> Signup and view all the answers

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