Dental Implant Impressions

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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?

The presence or absence of a transfer coping (A) Signup and view all the answers

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

To create a replica of the implant in the master cast (D) Signup and view all the answers

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

It reduces the effect of implant angulation (B) Signup and view all the answers

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

To transfer the position and design of the implant or abutment to the master cast (B) Signup and view all the answers

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

Custom abutment (D) 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?

Transfer coping (D) Signup and view all the answers

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

The tray is rigidly attached to the transfer coping (D) Signup and view all the answers

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

To allow for the escape of excess impression material (A) Signup and view all the answers

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

It requires x-ray confirmation of transfer seating (A) Signup and view all the answers

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

It reduces the risk of impression material distortion (B) Signup and view all the answers

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

Locator attachment (C) Signup and view all the answers

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

To serve as a replica of the implant or abutment in the master cast (C) Signup and view all the answers

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

It captures the position, depth, angulation, and hex position of the implant (D) 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?

Open-tray technique (A) Signup and view all the answers

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

It reduces the chair time required for the impression procedure (A) 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?

Closed-tray technique (D) Signup and view all the answers

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

To serve as a replica of the abutment in the master cast (C) Signup and view all the answers

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

Transmucosal abutments for screw-retention (C) Signup and view all the answers

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

Lab scan (C) Signup and view all the answers

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

To fit precisely into the dental implant fixture (B) Signup and view all the answers

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

Abutment-level impression (B) Signup and view all the answers

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

Increased accuracy (B) Signup and view all the answers

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

To replicate the implant fixture in the laboratory (B) Signup and view all the answers

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

Cement-retained restorations with touched abutments (A) Signup and view all the answers

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

The way the impression is transferred to the laboratory (A) Signup and view all the answers

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

Transfer coping (B) Signup and view all the answers

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

The type of prosthetic superstructure (B) Signup and view all the answers