Endodontic Treatment Failure
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Questions and Answers

What is considered a treatment failure in endodontic therapy?

  • When the treatment is completed without any complications
  • When the treated tooth is symptomatic or soft tissue response is abnormal (correct)
  • When a periapical lesion takes longer to heal than expected
  • When a pre-existing lesion decreases in size.

What is essential to achieve a high success rate in endodontic treatment?

  • Using advanced technology for diagnosis
  • Reducing the number of follow-up appointments
  • Following a technically high standard of treatment protocol (correct)
  • Using antibiotics to prevent infection

Why is it important to have regular follow-ups after endodontic treatment?

  • To prescribe antibiotics to prevent infection
  • To reduce the number of subsequent visits
  • To reduce the cost of treatment
  • To monitor any changes and assess the outcome of treatment (correct)

What can be a cause of endodontic failure?

<p>Poor clinical thoroughness during the treatment phase (D)</p> Signup and view all the answers

What is the main purpose of evaluating endodontic treatment outcomes?

<p>To explain the importance of evaluating endodontic treatment outcomes (C)</p> Signup and view all the answers

What is the primary factor that reduces the success rate of endodontic treatment by 10% to 20%?

<p>Presence of periradicular lesion (C)</p> Signup and view all the answers

Which of the following is a common error in root canal preparation that can lead to a lower success rate?

<p>Extension of the obturation material more than 2mm short of the apex (C)</p> Signup and view all the answers

What is the term for the prediction of the likely outcome of treatment?

<p>Prognostication (C)</p> Signup and view all the answers

Which of the following is a biological factor that can contribute to failure of endodontic treatment?

<p>Presence of bacteria in the canal (B)</p> Signup and view all the answers

What is the ultimate clinical measure of a treatment outcome in endodontic treatment?

<p>Assessing the prevention and resolution of disease (A)</p> Signup and view all the answers

What is the purpose of evaluating endodontic treatment outcomes?

<p>To determine the effectiveness of the treatment procedure (B)</p> Signup and view all the answers

What is a possible cause of endodontic treatment failure?

<p>All of the above (D)</p> Signup and view all the answers

What is a factor that affects the outcome of endodontic treatment?

<p>All of the above (D)</p> Signup and view all the answers

What is an essential step in assessing the outcome of endodontic treatment?

<p>Radiographic evaluation (C)</p> Signup and view all the answers

What is a criterion for success of endodontic treatment?

<p>All of the above (D)</p> Signup and view all the answers

What is a common consequence of inadequate root canal preparation?

<p>Reduced success rate due to ineffective cleaning (A)</p> Signup and view all the answers

Which of the following is a biological factor that contributes to endodontic treatment failure?

<p>Presence of bacteria in the canal (A)</p> Signup and view all the answers

What is a potential consequence of operative contamination during endodontic treatment?

<p>Increased risk of treatment failure (A)</p> Signup and view all the answers

What is a crucial aspect of assessing treatment outcomes in endodontics?

<p>Radiographic evaluation (A)</p> Signup and view all the answers

Which of the following obturation mistakes can lead to endodontic treatment failure?

<p>All of the above (D)</p> Signup and view all the answers

What is considered a failure in assessing treatment outcomes?

<p>Enlargement or development of radiolucent lesion (A)</p> Signup and view all the answers

Which of the following is a factor influencing periapical healing following nonsurgical root canal treatment?

<p>Patency at the canal terminus (D)</p> Signup and view all the answers

What is the ideal healing outcome of non-surgical root canal treatment?

<p>Regeneration and the formation of cementum over the apical termini (B)</p> Signup and view all the answers

Which of the following is a biological factor contributing to failure in vital pulp therapy?

<p>Inadequate removal of infected hard or soft tissues (D)</p> Signup and view all the answers

What is the significance of achieving patency at the canal terminus in nonsurgical root canal treatment?

<p>It significantly increases the chance of success (A)</p> Signup and view all the answers

Which factor has a minimal impact on the outcome of root canal treatment?

<p>Tooth morphologic type (A)</p> Signup and view all the answers

What is the primary reason for lower periapical healing rates in root canal retreatment compared to primary treatment?

<p>Obstructed access to the apical infection (C)</p> Signup and view all the answers

What is the most significant factor influencing the outcome of root canal retreatment?

<p>Ability to remove or bypass pre-existing root-filling material (B)</p> Signup and view all the answers

What is the primary factor influencing the success of periapical surgery?

<p>Surgical technique (B)</p> Signup and view all the answers

What is the common criterion for assessing the success of periapical surgery and nonsurgical root canal treatment?

<p>Clinical and radiographic criteria (D)</p> Signup and view all the answers

Which of the following is associated with increased failure risk in endodontic treatment?

<p>Apical root resorption (B)</p> Signup and view all the answers

What is a factor that affects the outcome of periapical surgery?

<p>Size of periapical lesion (B)</p> Signup and view all the answers

Which of the following is NOT a criterion for success in root canal therapy?

<p>Presence of a fistula (D)</p> Signup and view all the answers

What is the influence of using magnification during periapical surgery on treatment outcome?

<p>It reduces success risk (C)</p> Signup and view all the answers

Which of the following is NOT a biological factor that contributes to failure of endodontic treatment?

<p>Mild or moderate marginal periodontitis (A)</p> Signup and view all the answers

What is the effect of root-end resection with minimum bevel on treatment outcome?

<p>It reduces success risk (C)</p> Signup and view all the answers

Which of the following is a technical factor that contributes to failure of endodontic treatment?

<p>Overfilling (A)</p> Signup and view all the answers

What is the effect of using ultrasonic tip versus bur for retro cavity preparation on treatment outcome?

<p>It has no significant effect (B)</p> Signup and view all the answers

What is the influence of coronal restoration on endodontic success?

<p>It reduces success risk (B)</p> Signup and view all the answers

Which of the following is a factor that has little effect on endodontic treatment outcome?

<p>Age (A)</p> Signup and view all the answers

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