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Viva Question and Answers in Dentigerous Cyst

A viva, or oral examination, on dentigerous cysts might cover a range of topics related to their definition, clinical features, diagnosis, and management. Here are some potential questions and answers:

  1. Question: What is a dentigerous cyst?
    • Answer: A dentigerous cyst is a developmental odontogenic cyst that forms around the crown of an unerupted or partially erupted tooth. It is the second most common type of odontogenic cyst.
  2. Question: What are the common clinical features of a dentigerous cyst?
    • Answer: Common clinical features include painless swelling, delayed eruption of the involved tooth, displacement of adjacent teeth, and occasionally, root resorption of adjacent teeth.
  3. Question: How is a dentigerous cyst diagnosed?
    • Answer: Diagnosis is typically based on clinical and radiographic findings. A radiograph, such as a panoramic or periapical X-ray, will reveal a well-defined radiolucent area around the crown of an unerupted tooth.
  4. Question: What is the most common tooth associated with dentigerous cysts?
    • Answer: The most commonly affected tooth is the mandibular third molar (wisdom tooth), followed by the maxillary canine.
  5. Question: What is the treatment for a dentigerous cyst?
    • Answer: The most common treatment involves enucleation of the cyst and removal of the associated tooth. Marsupialization may be considered in certain cases, especially when dealing with large cysts to decompress the lesion before complete removal.
  6. Question: Are dentigerous cysts typically associated with any symptoms?
    • Answer: Dentigerous cysts are often asymptomatic. Patients may not experience pain unless there is a secondary infection or if the cyst becomes large enough to cause pressure on adjacent structures.
  7. Question: What is the risk of recurrence after the surgical removal of a dentigerous cyst?
    • Answer: Recurrence is rare after complete removal of the cyst and associated tooth. However, careful follow-up and monitoring are essential to detect any signs of recurrence.
  8. Question: How does a dentigerous cyst differ from other odontogenic cysts?
    • Answer: Dentigerous cysts are specifically associated with the crown of an unerupted or partially erupted tooth. They are distinct from other odontogenic cysts such as radicular cysts or odontogenic keratocysts, which have different clinical and histological characteristics.

These questions and answers provide a basic overview of dentigerous cysts, but the depth and complexity of the viva may vary depending on the level of education and the specific focus of the examination. It’s important for individuals preparing for such an examination to review relevant literature and consult with their instructors for more tailored guidance.

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Certainly! Here are 20 questions and answers related to dentigerous cysts:

  1. Question: What is a dentigerous cyst?
    • Answer: A dentigerous cyst is a cyst that forms around the crown of an unerupted or partially erupted tooth.
  2. Question: What is the most common tooth associated with dentigerous cysts?
    • Answer: The mandibular third molar (wisdom tooth) is the most commonly affected tooth.
  3. Question: What are the clinical signs of a dentigerous cyst?
    • Answer: Clinical signs include painless swelling, delayed tooth eruption, and displacement of adjacent teeth.
  4. Question: How is a dentigerous cyst typically diagnosed?
    • Answer: Diagnosis is usually based on clinical examination and radiographic findings, such as a panoramic or periapical X-ray.
  5. Question: What is the treatment for a dentigerous cyst?
    • Answer: Treatment often involves enucleation of the cyst and removal of the associated tooth.
  6. Question: Can dentigerous cysts be symptomatic?
    • Answer: Dentigerous cysts are often asymptomatic, but they can become symptomatic if there is a secondary infection or if the cyst enlarges.
  7. Question: What is marsupialization in the context of dentigerous cysts?
    • Answer: Marsupialization is a surgical technique that involves creating an opening in the cyst to allow drainage and decompression before complete removal.
  8. Question: What is the histological appearance of a dentigerous cyst?
    • Answer: Histologically, a dentigerous cyst typically has a thin fibrous capsule lined by stratified squamous epithelium.
  9. Question: What is the role of radiographs in diagnosing dentigerous cysts?
    • Answer: Radiographs are crucial for visualizing the cyst and the impacted tooth. A well-defined radiolucent area around the crown of an unerupted tooth is indicative of a dentigerous cyst.
  10. Question: Are dentigerous cysts more common in the maxilla or mandible?
    • Answer: Dentigerous cysts can occur in both the maxilla and mandible, but they are more commonly found in the mandible.

30 viva Questions and Answers related to the nerve supply to the Head and Neck

  1. Question: Can dentigerous cysts cause root resorption in adjacent teeth?
    • Answer: Yes, dentigerous cysts can cause root resorption in adjacent teeth due to pressure exerted by the enlarging cyst.
  2. Question: What is the age range at which dentigerous cysts commonly present?
    • Answer: Dentigerous cysts are most commonly diagnosed in individuals between the ages of 20 and 40.
  3. Question: What is the differential diagnosis for a radiolucent lesion around an impacted tooth?
    • Answer: The differential diagnosis includes dentigerous cyst, odontogenic keratocyst, and ameloblastoma.
  4. Question: How does a dentigerous cyst differ from a radicular cyst?
    • Answer: Dentigerous cysts are associated with the crown of an unerupted tooth, while radicular cysts are related to the roots of teeth and typically result from pulpal inflammation.
  5. Question: Can dentigerous cysts be detected through clinical examination alone?
    • Answer: While clinical examination may raise suspicion, radiographic imaging is essential for definitive diagnosis and treatment planning.
  6. Question: What are the complications of untreated dentigerous cysts?
    • Answer: Complications may include infection, enlargement of the cyst, and damage to adjacent structures such as nerves and blood vessels.
  7. Question: Is recurrence common after the surgical removal of a dentigerous cyst?
    • Answer: Recurrence is rare after complete removal, but regular follow-up is necessary to monitor for any signs of recurrence.
  8. Question: Can dentigerous cysts be associated with impacted supernumerary teeth?
    • Answer: Yes, dentigerous cysts can form around impacted supernumerary teeth in addition to permanent teeth.
  9. Question: How does the treatment approach differ for a large dentigerous cyst compared to a smaller one?
    • Answer: In larger cysts, marsupialization may be considered before complete enucleation to reduce the size and facilitate removal.
  10. Question: What is the role of cone-beam computed tomography (CBCT) in the diagnosis of dentigerous cysts?
    • Answer: CBCT provides three-dimensional imaging, offering enhanced visualization of the cyst and its relationship to adjacent structures, aiding in treatment planning.

These questions and answers cover various aspects of dentigerous cysts and should provide a comprehensive overview for examination preparation.