The most locally destructive and aggressive odontogenic cyst is:_____________?
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Answer: B. Dentigerous cyst
Explanation
Dentigerous cysts are associated with impacted teeth and cause significant local destruction and expansion. These developmental cysts form around the crowns of unerupted or impacted permanent teeth. Fluid accumulation within the reduced enamel epithelium drives gradual expansion of the cystic cavity. Third molars and maxillary canines are the most frequent sites for dentigerous cyst development. Radiographically, they appear as well-defined unilocular radiolucencies attached at the cementoenamel junction. Surgical enucleation of the cyst along with the associated impacted tooth is standard treatment.
Untreated cysts can grow large enough to cause pathological jaw fractures or root resorption. Routine panoramic dental radiographs help detect asymptomatic dentigerous cysts early. Histopathological examination confirms the non-inflamed fibrous connective tissue wall lined by epithelium. Periapical cysts develop at the apex of non-vital teeth due to chronic pulpal inflammation. Globulomaxillary cysts are developmental lesions located between maxillary lateral incisors and canines. Nasopalatine cysts arise within the incisive canal and present in the anterior hard palate.
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