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Viva Questions in Periapical Cyst

I can provide you with 20 potential viva questions and answers related to periapical cysts. Keep in mind that these are general questions, and the answers may need to be adapted based on the specific context and details of your studies or presentation.

  1. What is a periapical cyst?
    • Answer: A periapical cyst, also known as a radicular cyst, is a common odontogenic cyst that develops at the apex of a non-vital tooth.
  2. What is the most common cause of periapical cyst formation?
    • Answer: Periapical cysts typically arise from chronic dental pulp inflammation due to untreated dental caries or trauma.
  3. How does a periapical cyst develop?
    • Answer: It originates from the epithelial remnants of Malassez in the periodontal ligament, which proliferate in response to chronic irritation or infection.
  4. What is the clinical presentation of a periapical cyst?
    • Answer: Often asymptomatic, but may present with swelling, pain, or a draining sinus tract in more severe cases.
  5. How is a periapical cyst diagnosed?
    • Answer: Clinical examination, dental radiographs (periapical or panoramic), and sometimes cone-beam computed tomography (CBCT).
  6. What is the treatment of choice for a periapical cyst?
    • Answer: The primary treatment is endodontic therapy (root canal treatment) or extraction of the involved tooth.
  7. Can a periapical cyst resolve without intervention?
    • Answer: No, periapical cysts do not resolve on their own. Treatment is necessary to eliminate the source of infection or inflammation.
  8. How does periapical cyst differ from a periapical granuloma?
    • Answer: A periapical cyst has a well-defined epithelial lining, while a periapical granuloma lacks a true cystic lining.
  9. What are the complications of untreated periapical cysts?
    • Answer: Potential complications include the development of a radicular cyst, abscess formation, and damage to surrounding structures.
  10. What imaging modalities are useful in diagnosing periapical cysts?
    • Answer: Periapical and panoramic radiographs, as well as cone-beam computed tomography (CBCT) for detailed three-dimensional imaging.

Viva Question and Answers in Dentigerous Cyst

  1. How does the size of a periapical cyst influence treatment decisions?
    • Answer: Larger cysts may require more aggressive treatment, and the prognosis may be influenced by the extent of bone involvement.
  2. What is the role of histopathology in confirming a periapical cyst diagnosis?
    • Answer: Histopathological examination can confirm the presence of a cystic lining and rule out other pathologies.
  3. Can a periapical cyst recur after treatment?
    • Answer: Recurrence is uncommon after appropriate treatment. Complete removal or treatment of the cystic lining is essential to prevent recurrence.
  4. How do you manage pain and swelling in a patient with a periapical cyst?
    • Answer: Pain management may involve analgesics, and swelling may be addressed with local measures such as warm compresses. Definitive treatment is aimed at eliminating the cystic lesion.
  5. What is the difference between a radicular cyst and a residual cyst?
    • Answer: A radicular cyst develops from the epithelial remnants of Malassez, while a residual cyst is a radicular cyst that remains after extraction of the associated tooth.
  6. Can periapical cysts be diagnosed in the absence of symptoms?
    • Answer: Yes, periapical cysts are often asymptomatic and may be discovered incidentally on routine dental radiographs.
  7. How do you differentiate periapical cysts from other periapical radiolucencies?
    • Answer: Histopathological examination is crucial for differentiation. Periapical cysts have a distinct cystic lining, distinguishing them from granulomas or other lesions.
  8. What is the significance of the epithelial lining in periapical cysts?
    • Answer: The epithelial lining is critical for the cyst’s growth and persistence, and its removal is essential for successful treatment.
  9. Are there any systemic conditions associated with periapical cysts?
    • Answer: Periapical cysts are generally localized pathologies and are not typically associated with systemic conditions.
  10. How do you communicate the diagnosis and treatment plan to a patient with a periapical cyst?
    • Answer: Clearly explain the nature of the cyst, treatment options (endodontic therapy or extraction), and the importance of addressing the issue to prevent complications. Address any concerns the patient may have and discuss the prognosis of the chosen treatment.

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