Odontogenic Tumors of Mixed Origin Lecture Recap
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Questions and Answers

What is the most common site for ameloblastic fibroma?

  • Mandibular molar region (correct)
  • Maxillary anterior region
  • Mandibular anterior region
  • Maxillary molar region

How does the age group affected by ameloblastic fibroma compare to conventional ameloblastoma?

  • It affects older age groups
  • No age group difference
  • It affects younger age groups (correct)
  • It affects children only

What is the typical radiographic appearance of ameloblastic fibroma?

  • Both unilocular and multilocular
  • Multilocular
  • Unilocular (correct)
  • Radiolucency with no specific pattern

How does the background surrounding tissue of ameloblastic fibroma differ from that of ameloblastoma?

<p>It contains loose, cellular fibromyxoid CT similar to immature developing pulp of teeth (B)</p> Signup and view all the answers

What is a common feature associated with ameloblastic fibroma in radiographs?

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

What is the histological composition of the epithelium in ameloblastic fibroma?

<p>Thin strands and cords of odontogenic epithelium containing stellate reticulum cells (B)</p> Signup and view all the answers

Which odontogenic tumor is associated with pain mainly in the first molar region?

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

What is the typical age range for patients affected by cemento-ossifying fibroma?

<p>20-40 years (B)</p> Signup and view all the answers

Which odontogenic tumor causes a slowly enlarging painless swelling mainly in the molar and premolar region?

<p>Cemento-ossifying fibroma (D)</p> Signup and view all the answers

Which odontogenic tumor is composed of dense mass of acellular cementum in a fibrous stroma?

<p>Cementoblastoma (D)</p> Signup and view all the answers

What radiographic feature is associated with juvenile ossifying fibroma?

<p>Well-defined radiolucency with gradual calcification surrounded by radiolucent rim (B)</p> Signup and view all the answers

What makes the extraction of a tooth affected by cementoblastoma very difficult?

<p>Resorption of the related roots caused by the attachment of the mass (B)</p> Signup and view all the answers

Which odontogenic tumor variant is seen in younger patients?

<p>Juvenile ossifying fibroma (A)</p> Signup and view all the answers

What histological feature is characteristic of cemento-ossifying fibroma?

<p>Composed of cellular fibrous connective tissue stroma containing trabeculae of bone &amp; numerous cementicles. (A)</p> Signup and view all the answers

Which odontogenic tumor variant used to be discussed in bone tumors, but recently moved to the WHO classification of odontogenic tumors?

<p>Cemento-ossifying fibroma (D)</p> Signup and view all the answers

Which odontogenic tumor was first included in the odontogenic tumors in the recent 2017 WHO classification?

<p>Primordial odontogenic tumor (D)</p> Signup and view all the answers

What age group is most commonly affected by odontogenic myxoma?

<p>People in their second or third decade of life (B)</p> Signup and view all the answers

Which odontogenic tumor is characterized by a 'soap bubble' appearance in radiographs and a 'tennis racket' appearance?

<p>Odontogenic myxoma (D)</p> Signup and view all the answers

What is the most common clinical presentation of odontogenic fibroma?

<p>Painless swelling mainly in the mandible (A)</p> Signup and view all the answers

Which odontogenic tumor is associated with impacted teeth and can sometimes cause bone expansion?

<p>Compound odontome (B)</p> Signup and view all the answers

What distinguishes complex odontomes from compound odontomes histologically?

<p>Presence of enamel, dentin, cementum, and pulp tissues but not well-organized as in normal teeth (D)</p> Signup and view all the answers

What is the characteristic radiographic appearance of complex odontomes?

<p>Solid radiopaque mass with a surrounding radiolucent zone (B)</p> Signup and view all the answers

Which structure is primarily affected by cementoblastoma?

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

What distinguishes odontogenic myxoma from ameloblastoma histologically?

<p>(Strands of odontogenic epithelium within the connective tissue) (C)</p> Signup and view all the answers

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