RPD Modification Spaces Flashcards
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Questions and Answers

What does Class 1 in the Kennedy Classification refer to?

  • Bilateral edentulous areas located posterior to natural teeth (correct)
  • Unilateral edentulous area with natural teeth remaining both anterior and posterior
  • Bounded edentulous area that crosses the midline
  • Unilateral edentulous area located posterior to remaining natural teeth
  • What does Class 2 in the Kennedy Classification indicate?

    A unilateral edentulous area located posterior to the remaining natural teeth.

    Explain Class 3 in the Kennedy Classification.

    A unilateral edentulous area that does NOT cross the midline with natural teeth remaining both anterior and posterior to it.

    What is Class 4 in the Kennedy Classification?

    <p>A bounded edentulous area that crosses the midline, located anterior to the remaining natural teeth.</p> Signup and view all the answers

    Class 5 is characterized by an edentulous area bounded anteriorly and posteriorly by _____.

    <p>natural teeth</p> Signup and view all the answers

    What distinguishes Class 6 in the Kennedy Classification?

    <p>An edentulous area where adjoining teeth can fully support the prosthesis, requiring minimal tissue support.</p> Signup and view all the answers

    What should be done when a lone-standing, single-rooted abutment binds a modification space?

    <p>It is better to splint it to the nearest tooth by means of a fixed partial denture.</p> Signup and view all the answers

    What is a complication that arises when two modification spaces create a lone standing tooth?

    <p>A 3-unit fixed bridge must be considered to eliminate one of the spaces.</p> Signup and view all the answers

    What happens to lateral incisor teeth if they are replaced by the RPD?

    <p>The lateral incisor denture teeth invariably break off.</p> Signup and view all the answers

    What should be considered when restoring modification spaces?

    <p>Using fixed restorations in some cases (A)</p> Signup and view all the answers

    What is easier to design and fabricate: RPD with bilateral edentulous spaces or unilateral situations?

    <p>RPD with bilateral edentulous spaces.</p> Signup and view all the answers

    In what situation is it advisable to leave a modification?

    <p>When it is easier to design and fabricate an RPD with bilateral edentulous spaces.</p> Signup and view all the answers

    Study Notes

    Kennedy Classification

    • Class 1: Bilateral distal extension with edentulous areas located posterior to natural teeth.
    • Class 2: Unilateral distal extension with an edentulous area located posterior to remaining natural teeth.
    • Class 3: Unilateral bounded edentulous area with natural teeth both anterior and posterior to it; does not cross the midline.
    • Class 4: Bounded edentulous area that crosses the midline; a single bilateral area located anterior to remaining natural teeth.

    Overview of Applegate's Rules for Applying the Kennedy Classification

    • No specific details provided; further exploration of rules required.

    Applegate-Kennedy Classifications

    • Class 5: Bounded edentulous area with natural teeth anteriorly and posteriorly, but the anterior abutment is unsuitable for support; similar to Class 3 but without usable anterior support.
    • Class 6: Edentulous area supported entirely by adjacent teeth, requiring minimal tissue support, distinguishing it from typical tooth and tissue-supported dentures.

    Modification Spaces

    • Lone-standing, single-rooted abutments should be splinted to the nearest tooth with a fixed partial denture when binding a modification space.
    • Presence of two modification spaces complicates RPD design; considering a 3-unit fixed bridge may help eliminate one space.

    Fixed Restorations and Modification Spaces

    • Consider fixed restorations for modification spaces instead of including them in the removable partial denture, particularly with isolated abutment teeth.
    • Evaluate the cost against the benefits of splinting.
    • Designs with multiple bounded areas replaced by RPDs alongside isolated abutments and distal extensions often yield poor success rates.
    • Prioritize biomechanical concerns and the health of remaining teeth over economic factors during decision-making.

    Impact of Replacing Lateral Incisor Teeth with RPD

    • Missing maxillary lateral incisors and posterior teeth is common.
    • Replacement of lateral incisors with RPDs typically results in frequent breakage of the denture teeth.

    Considerations for 3-Unit Fixed Bridges

    • Specific examples needed to illustrate bridges that can help eliminate modifications.

    Design Considerations for RPD

    • In cases with bilateral edentulous spaces, retain the modification instead of opting for a bridge; RPD design is easier in bilateral cases compared to unilateral situations.

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    Description

    Test your knowledge on Kennedy Classification and RPD modification spaces with these flashcards. Learn about the different classes of edentulous areas, including bilateral distal extension and unilateral options. Perfect for dental students and professionals alike.

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