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
Which type of denture base material is most commonly used in complete denture fabrication due to its ease of processing and patient acceptance?
Answer: Acrylic resin (PMMA)
Polymethyl methacrylate (PMMA) acrylic resin is the standard denture base material because it is easy to process, repair, and aesthetically acceptable.
The post dam (posterior palatal seal) in a maxillary complete denture is designed to:
Answer: Create a peripheral seal to aid retention
The posterior palatal seal creates a peripheral seal at the vibrating line, preventing air from breaking the suction that aids denture retention.
When surveying a cast for a removable partial denture, the surveying rod is typically positioned parallel to:
Answer: The path of insertion and removal
The surveyor analyzes undercuts relative to the proposed path of insertion so the RPD can seat and be removed without binding.
A stress-breaker in a removable partial denture framework is used to:
Answer: Reduce forces transmitted to abutment teeth
Stress-breakers (stress relievers) introduce a flexible joint that reduces harmful torquing forces transferred to abutment teeth during function.
Which occlusal scheme is generally recommended for complete dentures worn by patients with well-resorbed ridges?
Answer: Non-anatomic (monoplane) occlusion
Non-anatomic or monoplane occlusion reduces horizontal forces on resorbed ridges, providing greater stability during function.
The purpose of blockout wax applied to a master cast before duplication is to:
Answer: Eliminate undercuts that would prevent RPD framework removal
Blockout wax fills undesirable undercut areas on the cast so the cast can be duplicated and the framework can be withdrawn from the investment.
Centric relation in edentulous patients is recorded to:
Answer: Establish a repeatable jaw relationship for mounting casts
Centric relation provides a reproducible mandibular position from which vertical dimension and occlusion can be accurately established on an articulator.