Removable Prosthodontics 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 Removable Prosthodontics flashcards as text
Flasking a denture wax-up for compression molding requires separating the flask halves at the:
Answer: Height of contour of the wax denture flange
The flask is separated at the height of contour of the wax flange so both halves can be opened without trapping undercuts in the stone investment.
The 'altered cast' technique for distal extension RPDs is used to:
Answer: Obtain an accurate functional impression of the extension base area under load
The altered cast technique replaces the edentulous ridge portion of the master cast with a functional impression taken through the seated framework, recording tissue under functional load.
Which statement correctly describes the difference between a Class I and Class II Kennedy classification?
Answer: Class I has bilateral edentulous areas posterior to remaining teeth; Class II has a unilateral posterior edentulous area
Kennedy Class I describes bilateral edentulous areas distal to remaining teeth (bilateral distal extension), while Class II describes a unilateral edentulous area distal to remaining teeth.
Pressure indicating paste (PIP) is applied to a completed denture to identify:
Answer: Areas of excessive denture base pressure on the soft tissue
PIP reveals high-pressure contact points on the fitting surface of the denture base that could cause soreness and tissue injury when the denture is worn.
The residual monomer content in processed acrylic denture bases is clinically important because excessive residual monomer can:
Answer: Cause tissue irritation or allergic reactions in the patient
Residual free monomer (methyl methacrylate) is a tissue irritant and potential allergen; proper heat-curing cycles minimize residual monomer to safe levels.
When articulating a patient's edentulous casts for complete denture fabrication, a facebow transfer is used to:
Answer: Relate the maxillary cast to the axis of condylar rotation on the articulator
The facebow records the spatial relationship of the maxillary arch to the transverse hinge axis, allowing accurate mounting of the upper cast on the articulator.
A 'try-in' appointment for complete dentures is conducted with teeth set in wax to allow verification of:
Answer: Esthetics, phonetics, vertical dimension, and centric occlusion before processing
The wax try-in is the last opportunity to evaluate tooth arrangement, vertical dimension, centric relation, lip support, and speech before irreversible processing of the denture.