Prosthodontics: Fixed and Removable Flashcards
7 cards from real AGD practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Prosthodontics: Fixed and Removable flashcards as text
When evaluating a patient for implant-supported prosthetics, the minimum bone height above the inferior alveolar nerve for a mandibular implant is generally considered to be:
Answer: 2 mm
A minimum of 2 mm of bone between the implant apex and the inferior alveolar nerve is required to prevent nerve injury, though most clinicians prefer more.
Acrylic resin denture teeth wear much faster than porcelain teeth. The primary clinical significance of this fact is:
Answer: Wear of acrylic teeth can reduce vertical dimension of occlusion over time
Progressive occlusal wear of acrylic denture teeth reduces the vertical dimension of occlusion, leading to overclosure, TMD symptoms, and poor esthetics.
The most common cause of fracture of a maxillary complete denture along the midline is:
Answer: Flexural fatigue from repeated bending during function
The maxillary denture flexes during function due to the resilient palatal mucosa acting as a fulcrum, causing repeated bending stress and fatigue fracture at the midline.
A provisional restoration is left in place for several months before the final impression. The primary risk associated with this practice is:
Answer: Gingival overgrowth and margin migration affecting the finish line
Prolonged temporization can allow gingival tissue changes—either overgrowth onto the finish line or recession—complicating the final impression and fit.
The phenomenon of 'combination syndrome' is associated with:
Answer: A maxillary complete denture opposing a mandibular Class I RPD with natural anteriors
Combination syndrome occurs when a maxillary complete denture opposes mandibular natural anterior teeth and a distal-extension RPD, causing bone loss in the anterior maxilla and posterior mandible.
Which of the following best describes the role of a face-bow record in fixed prosthodontics?
Answer: It transfers the maxillary cast to an articulator in the same relationship to the hinge axis
The face-bow records the spatial relationship of the maxillary arch to the transverse hinge axis, allowing accurate mounting on an articulator.
When a patient presents with pain under a new partial denture that worsens after meals, the most likely cause is:
Answer: Food impaction under the denture base causing tissue trauma
Food particles trapped between the denture base and the underlying soft tissue cause pressure and ulceration, which intensify after eating and are relieved by removing and cleaning the denture.