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Referral details

Case 55690

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Referral category

Impacted / delayed / malpositioned / extra teeth

Region of interest

#14-#15 area

Referral reason

[Only visible to logged-in users]

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Canaray 55690

1. Dentigerous cyst associated with tooth 14

The crown of the impacted tooth 14 is associated with a well-defined, corticated radiolucency which has caused elevation of the floor of the right maxillary sinus. This radiolucency is associated with the cementoenamel junction of tooth 14. These radiographic features are most suggestive of a dentigerous cyst associated with tooth 14.

Sagittal views of posterior 1st quadrant

These sagittal cross-sectional images demonstrate hydraulic elevation of the maxillary sinus floor caused by the dentigerous cyst associated with tooth 14.

Coronal views of posterior 1st quadrant

These coronal cross-sectional images demonstrate the unilocular, corticated nature of the radiolucency associated with the impacted tooth 14. A small amount of mucositis is present within the residual antral air space in the area of the zygomatic recess.

Axial views of posterior 1st quadrant

These axial cross-sectional images demonstrate the association of the pericoronal radiolucency associated with tooth 14 with the cementoenamel region. This feature supports the interpretation of a dentigerous cyst.

Impacted tooth 14

The crown of the distoangularly impacted tooth 14 is positioned mesiobuccal to the midroot level of tooth 15 and distal to the midroot level of tooth 13. No root resorption or damage has occurred to teeth 16, 15, and 13. The root of tooth 15 is distopalatally displaced due to the proximity to tooth 14. The follicle surrounding the crown of tooth 14 is associated with a pericoronal radiolucency that is most suggestive of a dentigerous cyst. The root of tooth 14 is fully formed and the periodontal ligament space is visible around the entire root circumference, which suggests that the tooth is not ankylosed. The crown of tooth 14 can be surgically accessed from the buccal aspect of the alveolar process distal to the midroot level of tooth 13.

Normal tooth 16

Tooth 16 has not been affected by the impacted tooth 14 or the displaced tooth 15.

Displaced tooth 15

The root of tooth 15 has been distopalatally displaced due to the proximity to the impacted tooth 14. The crown of tooth 14 is positioned mesiobuccal to the midroot level of tooth 15. No root resorption is present on tooth 15.

Normal tooth 13

Tooth 13 has not been affected by the impacted tooth 14. The crown of tooth 14 is positioned distal to the midroot level of tooth 13.

Axial views of mid-1st quadrant

These axial cross-sectional images demonstrate the mesiobuccal position of the crown of tooth 14 relative to tooth 15. The root of tooth 15 is distopalatally displaced. No root resorption involves teeth 16, 15, and 13.

2. Maxillary sinus mucositis

Focal mild mucositis is present in the zygomatic recess of the right maxillary sinus. This represents an incidental finding with no clinical significance.

3. Variant of normal bone patttern in sphenoid bone

A localized area of relatively low density bone is present within the right lateral region of the sphenoid bone, which is surrounded by a corticated periphery. This likely represents a site of early pneumatization of the sphenoid bone.

4. Calcified stylohyoid ligaments

The stylohyoid ligaments are partially calcified bilaterally. This is an incidental finding with no clinical significance.