Auricular & Nasal Reconstruction 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 Auricular & Nasal Reconstruction flashcards as text
When fabricating an auricular prosthesis for a patient with microtia, which landmark is most critical for establishing vertical positioning?
Answer: The helical root level of the contralateral ear
The helical root of the contralateral ear sets the superior-inferior position of an auricular prosthesis to ensure bilateral symmetry.
Which intrinsic anatomical feature of the auricle is most difficult to replicate in silicone prosthetics and often requires post-processing?
Answer: The antihelix bifurcation
The antihelix bifurcation into the superior and inferior crura involves complex undercuts that are challenging to reproduce accurately in a removable silicone prosthesis.
A patient presents with a total rhinectomy defect and significant scarring of the nasal floor. Which prosthetic retention strategy is most appropriate?
Answer: Osseointegrated implants placed in the nasal bone remnants
Osseointegrated implants placed in stable bone remnants provide the most reliable retention when soft tissue scarring compromises adhesive surface area.
During nasal prosthesis coloration, which technique best captures the appearance of nasal tip vascularity without adding excessive opacity?
Answer: Intrinsic pigmentation using translucent washes of red and purple
Intrinsic translucent washes of red and purple pigments mimic subsurface vascularity, maintaining the depth and lifelike quality of nasal tip skin.
What is the primary purpose of a wax trial fitting during auricular prosthesis fabrication?
Answer: To verify form, size, color, and retention before final processing
A wax trial fitting allows the anaplastologist and patient to evaluate all esthetic and functional parameters before committing to the irreversible final material.
Which sealant material is commonly applied to the edges of a nasal silicone prosthesis to feather the margins and blend with surrounding skin?
Answer: Intrinsic-matched medical-grade silicone adhesive
Intrinsic-matched medical-grade silicone adhesive is used to feather thin prosthetic margins, creating a seamless transition at the skin interface.
When designing a bar-retained auricular prosthesis over two craniofacial implants, what is the minimum recommended implant spacing to allow adequate bar attachment and hygiene access?
Answer: 18–22 mm center-to-center
A center-to-center spacing of approximately 18–22 mm is recommended to accommodate the bar connector hardware and allow adequate oral-hygiene-style cleaning around abutments.