Combination PRDP A Case Report of a Hybrid Flexible and Traditional Partial Removable Dental Prosthesis - Exam 65 - NEW - Spring Summer 2015
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The need for partial removable dental prostheses (PRDP) is increasing as the over-65 partially edentulous population grows. The use of flexible materials in the fabrication of these prostheses has captured a large portion of the market once occupied by traditional cast metal PRDPs. While there are some clinical advantages to the use of flexible PRDPs, there are also disadvantages and contraindications that must be considered. This paper describes a clinical case in which a patient's dentition is restored with a hybrid partial removable dental prosthesis consisting of a traditional metal framework and flexible denture base and clasps.

Questions:
 1) Flexible partial removable dental prostheses were slow to gain acceptance primarily due to:
  1. improved esthetics
  2. structural pliability
  3. cost
  4. difficulties in construction
 2) Which of the following are clinical disadvantages of flexible removable partial dentures:
  1. Prosthetic teeth do not chemically bond to the material
  2. Repairs and relines are not simple chairside procedures
  3. Surface roughness increases over time
  4. All of the above
 3) Rigid components of traditional cast metal partial removable dental prostheses do all of the following except:
  1. Permit broad distribution of applied forces
  2. Prevent vertical movement of the prosthesis toward the tissue
  3. Transmit applied forces down the long axis of the abutments
  4. Provide optimal esthetics
 4) In a recent survey it was reported that:
  1. 20% of all dentists prescribe flexible removable partial dentures
  2. 70 % of all removable prostheses are flexible
  3. 70 % of all dentists have prescribed flexible partial removable dental prostheses
  4. FPRDPs are not used by the majority of dentists
 5) A combination partial removable dental prosthesis may be contraindicated if:
  1. Anterior teeth must be clasped
  2. There is a long-span distal extension area present
  3. The patient desires an alternative to a traditional cast metal partial denture
  4. There is less than 3 mm of restorative space in the edentulous areas