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Endodontic and Prosthodontic Considerations Quiz
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Endodontic and Prosthodontic Considerations Quiz

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Questions and Answers

What is the impact of the quality of coronal restoration on the success of root canal treatment?

  • It only impacts the odds of healing when combined with adequate root filling
  • It has no impact on the success of root canal treatment
  • It has a significant impact on the success of root canal treatment (correct)
  • It impacts the outcome of root canal treatment only in cases of apical periodontitis
  • What was the finding regarding the success of root canal treatment in relation to the quality of restoration and root filling?

  • The odds for healing increased only with adequate restorative treatment
  • Poorer clinical outcomes were expected with inadequate root filling and inadequate coronal restoration
  • The odds for healing increased only with adequate root canal treatment
  • There was no significant difference in outcomes based on the quality of restoration and root filling (correct)
  • What was the outcome of the epidemiological study regarding teeth retention and full coronal coverage?

  • There was no correlation between full coronal coverage and teeth retention
  • Teeth with full coronal coverage had a 100% retention rate
  • Teeth with full coronal coverage had a lower retention rate
  • Teeth with full coronal coverage had a higher retention rate (correct)
  • What did the systematic review reveal about the odds for healing of apical periodontitis?

    <p>There is no significant difference in the odds of healing between combinations of inadequate root filling and inadequate coronal restoration</p> Signup and view all the answers

    What is the effect of a gap between the gutta-percha and the post on the normal periapex?

    <p>Gap of &gt;2 mm: 29.4% normal periapex</p> Signup and view all the answers

    In an in-vitro experiment, which root canal filling length demonstrated an inferior seal?

    <p>3mm</p> Signup and view all the answers

    Why is it important to restore the tooth within 4-6 weeks after RCT?

    <p>To reduce the chance of crown prep injury</p> Signup and view all the answers

    What is the recommended action if a temporary crown falls out after RCT?

    <p>Bring the patient back in a day or two</p> Signup and view all the answers

    What should be used for post preparation according to the text?

    <p>Gates or appropriate drills</p> Signup and view all the answers

    Why is accurate measurement in post preparation important?

    <p>To prevent perforation</p> Signup and view all the answers

    What type of sensibility testing is suggested after crown prep?

    <p>Electric pulp testing (EPT)</p> Signup and view all the answers

    What should be done if there are deep caries/filling or the tooth remains sensitive for more than few weeks after crown prep?

    <p>Suggest root canal treatment (RCT)</p> Signup and view all the answers

    What percentage of primary root canal treatments had successful outcomes in the USA according to the Endodontic Treatment Outcomes study?

    <p>30-38%</p> Signup and view all the answers

    Which of the following is a significant prognostic factor for tooth survival after non-surgical root canal treatment?

    <p>Non-molar teeth</p> Signup and view all the answers

    What is a risk associated with crown preparation in relation to pulp health?

    <p>Desiccation and frictional heat</p> Signup and view all the answers

    What percentage of teeth with pre-existing restorations or caries developed pulp necrosis according to a prospective study?

    <p>9%</p> Signup and view all the answers

    According to a retrospective study, what were the 15-year survival rates for pulp vitality for teeth with crowns and bridges?

    <p>Crowns: 81.2%, Bridges: 66.2%</p> Signup and view all the answers

    What is the impact of crown placement after four months of root canal treatment (RCT) on the risk of extraction?

    <p>Higher risk of extraction</p> Signup and view all the answers

    In a study on post placement during root canal treatment (RCT), what was observed to increase the success rate of RCT-treated teeth?

    <p>Rubber dam use during post placement</p> Signup and view all the answers

    What was the survival rate of endodontically treated teeth with crown placement within 4 months according to a study in 2016?

    <p>85%</p> Signup and view all the answers

    'Excessive pulpal floor removal or perforation during post preparation negatively impacts' what according to a study in 2013?

    <p>'Pulp vitality'</p> Signup and view all the answers

    Study Notes

    • Endodontic Treatment Outcomes study in USA: 30-38% of primary root canal treatments had successful outcomes. (J Endod. 2004)
    • Conditions improving primary root canal treatment outcomes:
      • No pre-operative periapical radiolucency
      • No root filling voids
      • Root filling extending 2mm within radiographic apex
      • Satisfactory coronal restoration
    • Systematic review of tooth survival after non-surgical root canal treatment: 86-93% survival over 2-10 years. (International Endod J. 2010)
    • Significant prognostic factors for tooth survival after RCT:
      • Crown restoration
      • Tooth with mesial and distal proximal contacts
      • Tooth not functioning as abutment
      • Non-molar teeth
    • Crown preparation poses risk to pulp health due to desiccation and frictional heat. (International Endod J. 2015)
    • Prospective study: 9% of teeth with pre-existing restorations or caries developed pulp necrosis. (International Endod J. 2015)
    • Retrospective study: 15-year survival rates for pulp vitality were 81.2% (crowns) and 66.2% (bridges). (International Endod J. 2005)
    • Nine percent of teeth with large restorations developed pulp necrosis. (J Endod 2023)
    • Eighty-five percent endodontically treated teeth survived eight years with crown placement within 4 months. (J Endod 2016)
    • Teeth with crown placement after four months of RCT had a higher risk of extraction. (J Endod 2016)
    • Rubber dam use during post placement increases success rate of RCT-treated teeth. (J Endod 2013)
    • Excessive pulpal floor removal or perforation during post preparation negatively impacts endodontically treated tooth survival. (J Endod 2013)

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    Description

    Test your knowledge on endodontic and prosthodontic considerations with this quiz. Explore topics such as the importance of root canal filling versus crown, pre-operative master-cone selection, 6-month follow-up, and the success of root canal treatment in relation to the quality of restoration and root filling.

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