DTC200 Class 2: Relationship Between Fixed Prosthesis and Periodontal Tissue
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Questions and Answers

What is the definition of biological width?

  • The distance from the free gingival margin to the alveolar bone crest
  • The distance from the tooth surface to the surrounding periodontal ligament
  • The distance from the cemento-enamel junction to the free gingival margin (correct)
  • The distance from the alveolar bone crest to the bottom of the gingival sulcus

    • What type of finish line design is indicated for teeth with adequate subgingival tissue adaptation?

  • Beveled finish line
  • Shoulder finish line (correct)
  • Rounded finish line
  • Chamfer finish line

    • What is the primary advantage of a ridge lap pontic design?

  • Easy cleaning
  • Minimal tissue coverage
  • Improved esthetics (correct)
  • Enhanced stability

    • How does a bad relation between prosthodontics and surrounding tissue affect periodontal supporting tissue?

    <p>Increases bone resorption</p> Signup and view all the answers

    What are the disadvantages of the ridge lap pontic design?

    <p>It can cause food impaction</p> Signup and view all the answers

    Which type of finish line design is indicated for teeth with inadequate subgingival tissue adaptation?

    <p>Bevel finish line</p> Signup and view all the answers

    What are the destructive effects of a bad relation between prosthodontics and surrounding tissue on the periodontal supporting tissue?

    <p>Increased risk of periodontal inflammation</p> Signup and view all the answers

    How does a deep chamfer finish line differ from a chamfer finish line?

    <p>It requires more tooth reduction</p> Signup and view all the answers

    What is the most significant impact of a bad relation between prosthodontics and surrounding tissue on the periodontal supporting tissue?

    <p>Greater susceptibility to periodontal disease</p> Signup and view all the answers

    What is the primary disadvantage of a collarless metal-ceramic finish line design?

    <p>Increased risk of soft tissue irritation</p> Signup and view all the answers

    Which design of pontic has the highest risk of causing ridge resorption?

    <p>Ovate pontic design</p> Signup and view all the answers

    What is the potential consequence of inadequate pontic embrasure space in a fixed prosthesis?

    <p>Greater chance of food impaction</p> Signup and view all the answers

    What is the impact of a bad relation between prosthodontics and surrounding tissue on the periodontal supporting tissue?

    <p>It can lead to inflammation, bone loss, and compromised periodontal health</p> Signup and view all the answers

    What is the definition of biological width in the context of prosthodontics?

    <p>The dimension of the dentogingival junction to the alveolar crest</p> Signup and view all the answers

    What type of finish line design is indicated for teeth with inadequate subgingival tissue adaptation?

    <p>Knife-edge finish line</p> Signup and view all the answers

    What are the destructive effects of a bad relation between prosthodontics and surrounding tissue on the periodontal supporting tissue?

    <p>Bone loss and compromised periodontal health</p> Signup and view all the answers

    What is the impact of an inadequate pontic embrasure space in a fixed prosthesis?

    <p>Increased risk of periodontal disease</p> Signup and view all the answers

    How does a deep chamfer finish line differ from a shoulder finish line?

    <p>It has less stress distribution</p> Signup and view all the answers

    What are the destructive effects of a bad relation between prosthodontics and surrounding tissue on the periodontal supporting tissue?

    <p>Loss of periodontal support and bone resorption</p> Signup and view all the answers

    What type of finish line design is indicated for teeth with adequate subgingival tissue adaptation?

    <p>Shoulder finish line</p> Signup and view all the answers

    What is the primary disadvantage of a subgingival finish line design in fixed prosthodontics?

    <p>Increased risk of caries and periodontal disease</p> Signup and view all the answers

    What is the most significant effect of inadequate pontic embrasure space in a fixed prosthesis?

    <p>Greater risk of periodontal and gingival problems</p> Signup and view all the answers

    What is the defining characteristic of a ridge lap pontic design?

    <p>Increased risk of food impaction and periodontal problems</p> Signup and view all the answers

    What is the primary advantage of a deep chamfer finish line design in fixed prosthodontics?

    <p>Improved gingival health and stability</p> Signup and view all the answers

    What is the defining characteristic of a deep chamfer finish line design in fixed prosthodontics?

    <p>It requires minimal tooth reduction</p> Signup and view all the answers

    What are the destructive effects of a bad relation between prosthodontics and surrounding tissue on the periodontal supporting tissue?

    <p>Increased risk of inflammation and bone loss</p> Signup and view all the answers

    What type of finish line design is indicated for teeth with adequate subgingival tissue adaptation?

    <p>Shoulder finish line</p> Signup and view all the answers

    What is the primary disadvantage of a collarless metal-ceramic finish line design?

    <p>Challenging fabrication process</p> Signup and view all the answers

    What is the defining characteristic of a shoulder finish line design in fixed prosthodontics?

    <p>It provides a sharp, 90-degree angle between the axial wall and the external tooth surface</p> Signup and view all the answers

    What is the primary disadvantage of a knife-edge pontic design?

    <p>It has the potential to cause excessive pressure on the edentulous ridge</p> Signup and view all the answers

    What type of finish line design is indicated for teeth with inadequate subgingival tissue adaptation?

    <p>Deep chamfer finish line</p> Signup and view all the answers

    How does a modified shoulder finish line differ from a chamfer finish line?

    <p>It has rounded internal line angles</p> Signup and view all the answers

    Define the term 'biological width' in the context of prosthodontics.

    <p>The biological width is the dimension of soft tissue that occupies the coronal portion of the tooth, including the junctional epithelium and the connective tissue attachment.</p> Signup and view all the answers

    List the types of finish line designs in fixed prosthodontics and their respective indications.

    <p>Types of finish line designs: Chamfer, shoulder, deep chamfer, and shoulder-chamfer combination. Indications: Chamfer - teeth with inadequate subgingival tissue adaptation; Shoulder - teeth with adequate subgingival tissue adaptation; Deep chamfer - teeth with inadequate subgingival tissue adaptation; Shoulder-chamfer combination - teeth with adequate subgingival tissue adaptation.</p> Signup and view all the answers

    Explain the advantages and disadvantages of different pontic designs used in fixed prosthodontics.

    <p>Various pontic designs include ridge lap, modified ridge lap, ovate, and sanitary. Ridge lap - good esthetics, poor hygiene; Modified ridge lap - improved hygiene, less esthetic; Ovate - excellent esthetics, difficult to clean; Sanitary - easy to clean, less esthetic.</p> Signup and view all the answers

    What are the destructive effects of a bad relationship between prosthodontics and surrounding tissue on the periodontal supporting tissue?

    <p>A bad relationship can lead to inflammation, bone loss, and compromised tooth stability.</p> Signup and view all the answers

    Define the term 'biological width' in the context of prosthodontics.

    <p>Biological width refers to the dimension of the soft tissue attachment to the tooth, including the junctional epithelium and connective tissue attachment.</p> Signup and view all the answers

    Explain the advantages and disadvantages of different pontic designs used in fixed prosthodontics.

    <p>Various pontic designs such as ridge lap, modified ridge lap, ovate pontic, and sanitary pontic have unique advantages and disadvantages related to esthetics, hygiene, and potential tissue irritation.</p> Signup and view all the answers

    What is the impact of a bad relation between prosthodontics and surrounding tissue on the periodontal supporting tissue?

    <p>A bad relation can lead to inflammation, bone loss, and compromise the health of the periodontal supporting tissue.</p> Signup and view all the answers

    List the types of finish line designs in fixed prosthodontics and their respective indications.

    <p>The types of finish line designs include chamfer, shoulder, deep chamfer, and knife-edge, each with specific indications based on the tooth preparation, esthetic requirements, and periodontal health.</p> Signup and view all the answers

    Students will have the ability to define the ______ width.

    <p>biological</p> Signup and view all the answers

    Students will have the ability to mention the type of finish line and the indications for every finish line ______.

    <p>design</p> Signup and view all the answers

    Student should have the ability to mention different design of the pontic and present the advantages and disadvantages of every ______ design.

    <p>design</p> Signup and view all the answers

    Student should have the ability to defines the destructive effect of bad relation between prosthodontics and surrounding tissue on the periodontal supporting ______.

    <p>tissue</p> Signup and view all the answers

    Student will have the ability to define the ______ width.

    <p>biological</p> Signup and view all the answers

    Student should have the ability to mention the type of finish line and the indications for every finish line ______.

    <p>design</p> Signup and view all the answers

    Student should have the ability to mention different design of the pontic and present the advantages and disadvantages of every ______ design.

    <p>design</p> Signup and view all the answers

    Student should have the ability to defines the destructive effect of bad relation between prosthodontics and surrounding tissue on the periodontal supporting ______.

    <p>tissue</p> Signup and view all the answers

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