Sindhura Anamali B.D.S., M.S. Diplomate Of ABOMR.
Clinical Assistant Professor The University of Iowa
sindhura-anamali@uiowa.edu
Published on : 14 Oct 2019
Odontoma:
Odontoma is a benign tumor that is characterized by the production
of mature enamel, dentin, cementum and pulp tissue
They
are the most common odontogenic tumor
Usually detected
in the second decade of life
Odontomas
are slow growing and have limited growth potential
Odontomas
can interfere with normal eruption
They
are usually associated with permanent teeth and cause delayed eruption and or
impaction of permanent teeth in the area they are present
Odontoma Classification:
Odontomas are classified as:
Compound Odontoma
Complex Odontoma
Compound
Odontoma:
More
commonly seen than complex odontoma
Equal
predilection for males and females
Commonly
seen in the maxilla
Anterior region
Associated with the crown of an unerupted tooth
Radiographic
Features:
Well-defined,
radiopaque area surrounded by a radiolucent capsule and a corticated border
Internal
structure is radiopaque with multiple small tooth like entities
Complex Odontoma:
Less
commonly seen when compared to compound odontoma
High
predilection for females ( 60 % )
More
commonly seen in the mandible
Posterior regions
First – second molar region
Radiographic
Features:
Well-defined,
radiopaque area, surrounded by a radiolucent capsule and a corticated border
Internal
structure is mostly radiopaque – presents as an irregular mass of calcified
tissue
Differential
diagnosis:
Compound
Odontoma
Classic
presentation seldom confused with any other lesion
Complex Odontoma
Ossifying fibroma
Compound Odontoma - Example 1
Compound Odontoma in the region of the maxillary right lateral showing multiple small denticles
Compound Odontoma – Example 2
CBCT images: lingual to the mandibular right premolars showing multiple small denticles within same
Complex Odontoma – Example 1
CBCT images: Complex Odontoma(red arrows) associated with the crown of the mandibular right third
Complex Odontoma - Example 2
CBCT images: Complex Odontoma(outlined in red arrows) associated with the crown of the maxillary