Implant Prosthetics Techniques Flashcards
7 cards from real CDT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Implant Prosthetics Techniques flashcards as text
Which material is preferred for implant abutments in high esthetic zones due to its tooth-like color and biocompatibility?
Answer: Zirconia (Y-TZP)
Zirconia (Y-TZP) offers excellent esthetics, biocompatibility, and adequate strength for single-tooth and short-span anterior implant abutments.
What is the function of a 'transfer impression coping' (open-tray coping) in implant prosthetics?
Answer: It is picked up in the impression, directly capturing the implant position
Open-tray transfer copings are retrieved with the impression, accurately capturing the three-dimensional position of the implant analog in the cast.
A technician is designing an implant-retained overdenture. Which attachment system provides the greatest degree of patient-adjustable retention through clip replacement?
Answer: Bar-clip attachment
Bar-clip systems allow incremental retention adjustment by replacing the clip inserts, offering a broad range of retention levels over the prosthesis lifespan.
In the All-on-4 treatment concept, the two posterior implants are typically placed at what angle to increase bone engagement and avoid anatomical structures?
Answer: 45 degrees
Posterior implants in the All-on-4 concept are tilted 45 degrees to engage more bone and avoid the maxillary sinus or mandibular nerve without grafting.
Which type of impression technique is most accurate for capturing the position of multiple implants in different axial inclinations?
Answer: Open-tray splinted technique using polyether
Open-tray splinted impressions with polyether minimize coping displacement and distortion, achieving the highest accuracy for multiple divergent implants.
When cementing an implant-supported crown, excess cement below the gingival margin can cause which serious complication?
Answer: Peri-implant mucositis or peri-implantitis leading to bone loss
Subgingival cement remnants trigger an inflammatory response that can progress to peri-implant mucositis and peri-implantitis with bone loss.
A technician is fabricating a custom abutment with a sub-gingival margin. The emergence profile should mimic which anatomical reference?
Answer: The CEJ of a natural tooth
The emergence profile is designed to replicate the cementoenamel junction (CEJ) contours of a natural tooth, creating an esthetic and hygienic soft-tissue interface.