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Case 200707

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Referral category

Disease / syndrome / tumor / condition

Region of interest

Right maxillary

Referral reason

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Canaray 200707

1. Reduction in lesion size in anterior right maxilla since prior scan

The prior scan (Canaray case 140906, dated 19 Jan 2017, shown in redscale) was overlaid on the current scan (shown in greyscale). The visible grey bone boundaries in the overlay are indicative of a reduction in the size of the lesion since the prior scan. The most prominent site of bone infill has occurred at the palatal surfaces of teeth 13 and 14. In addition, the buccolingual dimension of the lesion appears to be reduced. However, large dehiscences are present on all surfaces of the lesion in the current scan. No significant bone formation is visible at the palatal aspect of the lesion, for example. No signs of recurrence of the lesion are radiographically evident.

requires voxel comparison

Canaray case 140906, dated 19 Jan 2017

Partially erupted tooth 18

Tooth 18 is vertically impacted with its crown oriented in buccoversion. Mild root resorption is present on the distal surface of the coronal half of the distobuccal root of tooth 17. The crown of tooth 18 has erupted through the alveolar crest. The residual follicle surrounding the crown of the tooth appears normal and is adjacent to the distal surface of tooth 17. The periodontal ligament space is of uniform width surrounding the root of the tooth and the lamina dura is intact. Occlusal caries are present on tooth 18.

Impacted tooth 28

Tooth 28 is transversely impacted with its crown oriented in severe buccoversion. There is no evidence of root resorption on the distal surface of tooth 27. The periodontal ligament space cannot be fully visualized surrounding the root of the tooth. The portion of the follicle surrounding the crown of the tooth appears hypoplastic. These findings suggest that the tooth is ankylosed.

Clear right maxillary sinus

These sagittal cross-sectional images demonstrate that the right maxillary sinus is clear and free of pathology.

2. Defect in anterior wall of left maxillary sinus

A defect is present in the anterior wall of the left maxillary sinus. This defect appears to be occupied by soft tissues. This defect may be secondary to a history of sinus surgery. No significant antral inflammation is present in the left maxillary sinus.