Adenomatoid odontogenic tumor
Adenomatoid odontogenic tumor (AOT) is a benign tumor of odontogenic origin thought to arise from the remnants of dental lamina. It was formerly called “adenoameloblastoma” since it was considered to be a variant of conventional ameloblastoma.
Pathologists have also debated as to whether this tumor could be a hamartoma. However, there is no convincing evidence for the same.
Two-thirds of the AOT cases predominantly occur in the second decade of life with the general age range being 10-19 years.
The tumor has a female predominance, with almost 2/3rds of cases occurring in females.
It is reported that 74% of the cases occur in the anterior jaws and are associated with an unerupted tooth.
It is also reported that 2/3rds of the affected teeth are canines (maxillary or mandibular). However it is known to be more commonly associated with the maxillary canine than its mandibular counterpart.
For the above quoted reasons, AOT is called “two-thirds tumor”.
AOTs are generally small in size ranging from 1- 3 cms and are usually asymptomatic.
They could grow to large sizes and cause facial asymmetry.
AOTs could appear as a)a pericoronal radiolucency around the crown of an unerupted tooth (follicular type --> most common), b) a unilocular radiolucency associated with an erupted tooth (extra-follicular type).
The follicular type AOT mimics dentigerous cyst, but the radiolucency usually extends a little bit further onto the root of the unerupted tooth (unlike dentigerous cyst in which radiolucency extends upto CEJ).
🔎You could delve deeper into the topic
You could read the rest of this free lesson in the free sample course 👉 The Free Stuff on our website - www.hackdentistry.com!
🔎You could dig deeper into other topics in Oral Pathology
You could delve deeper and read in detail about numerous other topics in Oral Pathology with our Revision Ninja - Oral Pathology and Medicine Course bundle!
You could access to Notes, numerous MCQs and Videos with English captions on various topics in Oral Pathology and Medicine.