Implant Components & Impression Techniques in Implant Dentistry Flashcards
impression coping for ____ tray impression techniques require the impression coping to be taller than the adj teeth
open tray impression technique
impression coping for ____ tray impression techniques require the impression coping to be shorter or equal height to the adj teeth
closed tray impression technqiue
Which dimension matters more with the implant analog?
diameter
the length does not matter
_____ ___
• 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.
temp abutment
What is Needed when there aren’t enough teeth to stabilize casts during articulator mounting (multiple teeth missing, no posterior stops).
bite registration aid
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.
custom castable abutment (gold abut. or UCLA abut.)
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.
prefabricated
______ ______: 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.
Angled Ti-bases
What is the max angulation that can be used with angled ti-bases?
25 degrees
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.
Custom CAD/CAM abutment
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)
Implant Level Impression
What level of implant impression is used here?
Impression of prepared abutment
either custom or prefabricated abutment
abutment level impression
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.
true
t/f: for the open tray impression it is necessary to remove the screw before removing the impression tray.
true
_____ retained implants use an implant level impression.
opened or closed tray technique
screw retained