Mixed Odontogenic Tumors Flashcards
What are the three Mixed odontogenic tumors that were discussed?
Ameloblastic Fibroma
Ameloblastic Fibro-odontoma
Odontoma
Ameloblastic fibroma contain myxoid connective tissue that resembles dental ______ with strands/islands of epithelium that resembles dental ______.
connective tissue = Papilla
islands = lamina
True or False: The epithelial strands associated with ameloblastic fibroma are often large enough to mimic ameloblastoma.
True
What is the treatment for ameloblastic fibroma?
aggressive curettage
rare malignant transformation, low recurrance 15%
What is an ameloblastic fibro-odontoma?
an odontogenic tumor with features of ameloblastic fibroma admixed with odontoma
(well-circumscribed radiolucency around impacted tooth)
Ameloblastic fibro-odontoma is usually diagnosed in ______ around age ______ years when swelling is noted or a tooth doesn’t erupt.
children
10
The odontoma portion of an ameloblastic fibro-odontoma is usually of the ______ type.
complex (calcified material)
How are ameloblastic fibro-odontomas treated?
conservative curettage with unusual recurrence
True or False: An odontoma is a true neoplasm.
false, more likely that it is an odontogenic hemartoma (normal tissue occurring in the wrong place)
What are the two forms of odontoma?
- compound
2. complex
Where do complex odontomas occur?
posterior
an “ex” is in your past…complEX =post
Where do compound odontomas occur?
anterior
True or False: Most odontoma will occur in the first two decades of life.
True (mean age is 14)
Which is more common for odontomas: maxilla or mandible?
maxilla
What does a compound odontoma present as?
a collection of small malformed teeth surrounded by a narrow radiolucent rim
