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Disease / syndrome / tumor / condition
Region of interest
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1. Unilocular odontogenic cyst in anterior right mandible
A unilocular odontogenic cystic entity is present in the anterior right mandible apical to teeth 41 and 42. This cyst is not associated with the dentition. The periphery of the cyst is well corticated. Mild buccal expansion of the alveolar process has occurred. This likely represents a unilocular cyst or cystic tumor, such as an odontogenic keratocyst or a unicystic ameloblastoma.
Axial views of anterior mandible
The entity in the anterior mandible extends distally to the mesial surface of tooth 43, and mesially to the mandibular midline. The periodontal ligament spaces and lamina dura around the teeth in the anterior mandible are intact, because the cyst is not associated with any of the anterior teeth.
Coronal views of anterior mandible
These coronal cross-sectional images demonstrate the intact corticated periphery of the unilocular entity in the anterior mandible. The maintenance of the lamina dura on the mesial surface of tooth 43 suggests that this is a slow-growing entity that is not aggressive.
2. Caries on tooth 34
Tooth 34 exhibits caries on its distobuccal surface at the level of the cementoenamel junction.
3. Caries on tooth 35
Tooth 35 exhibits caries on its buccal surface at the level of the cementoenamel junction.
4. Widened PDL space and rarefying osteitis on tooth 36
The periodontal ligament space is widened on the lingual surface of the mesial root of tooth 36. This pattern of rarefying osteitis is suggestive of a potential root fracture. In addition, the periapical periodontal ligament space of tooth 36 is widened.
5. Rarefying osteitis on tooth 46M
Tooth 46 exhibits rarefying osteitis on the distal surface of the apical half of its mesial root.