Implant-Retained Prosthetics Flashcards

What is the primary advantage of implant-retained prosthetics over adhesive-retained prosthetics for auricular reconstruction?

Answer: Improved retention reliability independent of skin condition, perspiration, or adhesive allergy

Implant retention provides consistent, reliable attachment unaffected by sweat, oily skin, adhesive sensitivities, or residual skin irregularities after ablative surgery.

A patient who received radiation therapy is scheduled for craniofacial implant surgery. Which adjunctive therapy is most commonly recommended to improve osseointegration outcomes?

Answer: Hyperbaric oxygen therapy (HBO)

Hyperbaric oxygen therapy enhances vascularization and oxygenation of irradiated bone, improving the biological environment for osseointegration.

When a patient reports a clicking sound from their bar-clip retained auricular prosthesis during jaw opening, the anaplastologist should FIRST:

Answer: Inspect and replace worn nylon clips within the prosthesis

Clicking from a bar-clip system typically indicates worn nylon retention clips that no longer engage the bar firmly and require replacement as routine maintenance.

Which factor MOST influences the choice of implant position for a bilateral auricular prosthesis case?

Answer: Existing anatomical landmarks and symmetry relative to the contralateral ear or Frankfurt horizontal plane

Bilateral implant positioning must reference anatomical landmarks and the Frankfurt horizontal plane to ensure symmetric prosthetic placement matching natural ear position.

In an implant-supported orbital prosthesis, the inclusion of an ocular prosthesis (artificial eye) within the facial prosthesis creates a two-piece system primarily to allow:

Answer: Independent replacement of the ocular component without disturbing the orbital surround or removing implants

A two-piece orbital-ocular design allows the ocular component to be serviced or replaced for color match, fit, or polish independently without disturbing the implant-retained orbital frame.

What is the rationale for placing craniofacial implants in a two-stage surgical protocol rather than a single-stage protocol?

Answer: The two-stage approach allows osseointegration to occur under a submerged, load-free environment before soft tissue penetration

Submerging implants during the first stage protects them from loading and contamination while osseointegration occurs; the second stage exposes them once integration is confirmed.

Which long-term complication is MOST commonly associated with implant-retained craniofacial prosthetics and requires ongoing monitoring?

Answer: Peri-implant skin reactions (soft tissue management issues)

Peri-implant skin reactions around percutaneous craniofacial implants are the most frequently reported long-term complication and require regular clinical monitoring and patient hygiene education.