Implant Components & Impression Techniques in Implant Dentistry Flashcards

1
Q

impression coping for ____ tray impression techniques require the impression coping to be taller than the adj teeth

A

open tray impression technique

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2
Q

impression coping for ____ tray impression techniques require the impression coping to be shorter or equal height to the adj teeth

A

closed tray impression technqiue

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3
Q

Which dimension matters more with the implant analog?

A

diameter

the length does not matter

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4
Q

_____ ___
• Can be metal or peek/acrylic material.
• Should always be used for anterior teeth.
• When multiple posterior teeth are being restored may be used to
reestablish posterior support and vertical dimension before
proceeding to final restorations.

A

temp abutment

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5
Q

What is Needed when there aren’t enough teeth to stabilize casts during articulator mounting (multiple teeth missing, no posterior stops).

A

bite registration aid

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6
Q

What type of implant final abutment?
• Used to fabricate screw-retained gold & PFM implant crowns or custom abutments for cement retained gold and PFM crowns when implant position is not ideal.
• Made of gold alloy.
• Expensive.
• Because it is heated many times in an oven for casting, the connection can get distorted and create a discrepancy.

A

custom castable abutment (gold abut. or UCLA abut.)

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7
Q

What type of implant final abutment?
• Most used option is the titanium base (Ti-base)
which is used to fabricate screw-retained all-
ceramic implant crowns or custom abutments
for cement retained all-ceramic implant crowns
(Zirconia & Lithium disilicate).
• Made of titanium.
• Cheaper.
• Many different options, which sometimes can be
overwhelming.
• Has the advantage of never being heated in an
oven, avoids distortions.

A

prefabricated

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8
Q

______ ______: are available for screw-retained implant prosthesis for when the implant position is not ideal, allowing for up to 25° implant angle correction. If the angle correction needed is above 25°, a custom abutment and cement retained restoration will be necessary.
• Specifically made drivers are necessary
for angled Ti-bases.

A

Angled Ti-bases

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9
Q

What is the max angulation that can be used with angled ti-bases?

A

25 degrees

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10
Q

What type of implant final abutment?
• Expensive. • Custom made by manufacturer for that specific implant. • Never goes in the oven. • Final restoration is either cemented or screw-retained.

A

Custom CAD/CAM abutment

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11
Q
What level of implant impression is used here? 
• Open tray (implant and teeth are not
necessarily parallel) 
• Closed tray (implant and teeth are
close to parallel)
A

Implant Level Impression

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12
Q

What level of implant impression is used here?

Impression of prepared abutment
either custom or prefabricated abutment

A

abutment level impression

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13
Q

t/f: when doing the open and closed tray technique, it is important to take a radiograph to insure full seating of the impression coping.

A

true

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14
Q

t/f: for the open tray impression it is necessary to remove the screw before removing the impression tray.

A

true

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15
Q

_____ retained implants use an implant level impression.

opened or closed tray technique

A

screw retained

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16
Q

_______ retained implants use an abutment level impression

A

cement retained.

17
Q

t/f: when taking an abutment level impression, an impression cap is used, and the process is the same as the conventional single crowns.

A

true

18
Q

what level of impression uses the following steps
Step 1: Remove the healing cap, if one is present.
Step 2: Snap the impression cap on the implant abutment.
Step 3: Syringe light body material around the base of the impression cap, onto the soft tissue.
Step 4: Final impression with heavy body.

A

the abutment level impressions