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Implant-Retained Prosthetics Flashcards

7 cards from real CCA 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-Retained Prosthetics flashcards as text

  1. Which retention system uses a milled bar connected between two or more implants over which a corresponding clip on the prosthesis engages?

    Answer: Bar-clip retention

    Bar-clip retention uses a custom-milled bar spanning multiple implants with a matching clip housed in the prosthesis for secure attachment.

  2. When planning implant placement for an auricular prosthesis, which anatomical landmark is most critical to avoid?

    Answer: Mastoid air cells

    Mastoid air cells must be avoided during auricular implant placement to prevent communication with the middle ear and risk of infection.

  3. What is the recommended minimum bone volume at a craniofacial implant site to ensure osseointegration?

    Answer: 4–5 mm depth

    A minimum bone depth of approximately 4–5 mm is generally required for adequate craniofacial implant osseointegration and stability.

  4. Which magnetic retention component is housed within the prosthesis and attracted to a corresponding keeper on the abutment?

    Answer: Rare-earth magnet cassette

    The rare-earth magnet cassette is embedded in the prosthesis and attracted to a ferromagnetic keeper seated on the implant abutment.

  5. A patient presents with hypergranulation tissue at the percutaneous implant site. What is the FIRST recommended management step?

    Answer: Increased cleaning frequency with chlorhexidine

    Hypergranulation at the skin-implant interface is initially managed by intensifying hygiene with chlorhexidine before considering more invasive interventions.

  6. In osseointegration theory originally described by Brånemark, what is the direct structural and functional connection between bone and implant surface?

    Answer: Osseointegration

    Osseointegration is the direct, load-bearing contact between living bone and a titanium implant surface without intervening connective tissue.

  7. Which factor most significantly increases the risk of implant failure in craniofacial sites compared to dental implant sites?

    Answer: Thinner cortical bone with less cancellous support

    Craniofacial bone is often thin with minimal cancellous support, limiting implant engagement depth and increasing failure risk compared to jaw bone.