Odontoma: Treatment and Prognosis

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What is the reason for the rapid growth of odontogenic myxoma?

Resorption of bone

Proliferation of odontogenic epithelium

Accumulation of mucoid material (correct)

Divergence of roots of adjacent teeth

What are the two clinical variants of odontogenic fibroma?

Primary and secondary

Central and peripheral (correct)

Intraosseous and extraosseous

Benign and malignant

What is a characteristic radiographic feature of large odontogenic fibroma?

Multilocular radiolucency (correct)

Root resorption

Well-defined unilocular radiolucency

Cortical erosion

What is a histopathological feature of odontogenic fibroma?

Foci of calcification Signup and view all the answers

What is the treatment of choice for cementoblastoma?

Enucleation and curettage Signup and view all the answers

What is the characteristic radiographic feature of an ameloblastic fibroma?

A well-defined unilocular or multilocular radiolucent lesion Signup and view all the answers

What is the histopathological feature of the epithelial portion of an ameloblastic fibroma?

It consists of long, narrow cords or small discrete islands of odontogenic cells Signup and view all the answers

What is the treatment of choice for an ameloblastic fibroma?

Conservative removal of the lesion Signup and view all the answers

What is the association between odontomas and Gardner's syndrome?

Multiple odontomas are seen in association with Gardner's syndrome Signup and view all the answers

What is the major problem for patients with Gardner's syndrome?

High risk of transformation of colorectal polyps into adenocarcinoma Signup and view all the answers

What is the primary goal of the lecture on non-ameloblastoma odontogenic tumours?

To detail the principle radiological and histopathological features of non-ameloblastoma odontogenic tumours Signup and view all the answers

What is the recommended course of action for students preparing for this lecture?

Review relevant teaching from the first year and read specific sections of recommended textbooks Signup and view all the answers

What is the prognosis for odontoma treatment?

Excellent, with simple local excision Signup and view all the answers

What is the title of the recommended textbook by Reichart and Philipsen?

Odontogenic tumors and allied lesions Signup and view all the answers

What is the page range of the recommended reading in Robinson et al.'s textbook?

pp 149-159 Signup and view all the answers

What is a characteristic clinical feature of Calcifying Epithelial Odontogenic Tumor?

Slow growth and bony expansion Signup and view all the answers

What is a common radiographic finding of Calcifying Epithelial Odontogenic Tumor?

A circumscribed unilocular or multilocular radiolucency Signup and view all the answers

What is a distinctive histopathological feature of Calcifying Epithelial Odontogenic Tumor?

Neoplastic cells with prominent intercellular bridges and pleomorphic nuclei Signup and view all the answers

What is a unique feature of the amyloid protein secreted by Calcifying Epithelial Odontogenic Tumor cells?

It tends to calcify in the form of concentric rings (Liesegang ring calcifications) Signup and view all the answers

What is the likely location of Calcifying Epontogenic Odontogenic Tumor?

Posterior mandible Signup and view all the answers

What is the main component of odontogenic epithelium-only tumors?

Odontogenic epithelium Signup and view all the answers

Which type of odontogenic tumor is composed of both odontogenic epithelium and ectomesenchyme?

Mixed Signup and view all the answers

What is the most common type of benign odontogenic tumor?

Ameloblastoma Signup and view all the answers

What is the component of the dental follicle that is involved in the formation of odontogenic tumors?

Odontogenic ectomesenchyme Signup and view all the answers

What is the classification of odontogenic tumors based on their composition?

Epithelial, mesenchymal, and mixed Signup and view all the answers

What percentage of adenomatoid odontogenic tumor cases are intraosseous?

95% Signup and view all the answers

Which part of the maxilla is most commonly affected by adenomatoid odontogenic tumor?

Anterior part Signup and view all the answers

What is the characteristic radiographic feature of adenomatoid odontogenic tumor?

Well-defined unilocular radiolucency with fine radiopacities Signup and view all the answers

What is the macroscopic appearance of adenomatoid odontogenic tumor?

Smooth rounded symmetrical masses Signup and view all the answers

What is the characteristic histopathological feature of adenomatoid odontogenic tumor?

Duct-like structures with columnar epithelial cells Signup and view all the answers

What is the usual treatment for adenomatoid odontogenic tumor?

Enucleation Signup and view all the answers

What is the prognosis for adenomatoid odontogenic tumor?

Good Signup and view all the answers

What type of tumor is adenomatoid odontogenic tumor classified as?

Epithelial Signup and view all the answers

What is a common association of adenomatoid odontogenic tumor?

Unerupted tooth Signup and view all the answers

What is the histopathological feature of adenomatoid odontogenic tumor that allows for easy removal from bone?

Thick fibrous capsule Signup and view all the answers

What is the characteristic histopathological feature of cementoblastoma?

Calcified cementum-like material with reversal lines Signup and view all the answers

What is the most common site for ameloblastic fibroma?