rpd7.txt

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Author:
emm64
ID:
230173
Filename:
rpd7.txt
Updated:
2013-08-16 09:18:22
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rpd7
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rpd7.txt
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  1. What is the Kennedy-Applegate Classification? How many classes and their specifics?
    • Class I- Bilateral edentulous areas located posterior to remaining natural teeth
    • Class II- Unilateral edentulous areas located posterior to remaining natural teeth
    • Class III- Unilateral edentulous areas with natural teeth both anterior and posterior
    • Class IV- A single but bilateral (crossing the midline) edentulous area located anterior to the remaining natural teeth
    • Additional edentulous areas are " modification spaces"
  2. What is UCLA Functional Design Classification?
    Tooth Borne Removable Partial Dentures -Abutment teeth border all edentulous areas
  3. What are the basic mechanical principles of an active retainer /or a passive retainer?
    Retainers located away from the axis need to be passive.
  4. What is a tooth-borne RPD and its biomechanical characteristics?
    Tooth Borne Removable Partial Dentures -Abutment teeth border all edentulous areas
  5. What is an extension base RPD and its biomechanical characteristics?
  6. What is the axis of rotation? When does it exist?
    • Passes through the rest closest to the extension base edentulous area and the farthest rest
    • -Only exist in extension-base RPDs
    • -Rests determine the axis
    • Retainers located away from the axis need to be passive.
  7. What are the three impacts from mesial rest vs. distal rest on the abutment next to the distal extension edentulous space?
    • abutment
    • direction of force in edentulous area
    • impact on I-bar movement
  8. What are the design considerations and their specifics for a distal extension base RPD?
    • 1.Rest Position: Mesial vs. Distal
    • 2. Selection of Retainer: circumferential vs. I-bar
    • force generated during chewing on extension base
    • I-bar is more harmless biomechanically to protect the abutment
    • 3. Location of Desired Retention: Mesial vs. Distal
  9. I-bar should engage the .01” retention at ___________ so I-bar will disengage the abutment when Pt chews on extension area.
    midbuccal or mesial half

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