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Case 117341

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Referral category

Disease / syndrome / tumor / condition

Region of interest

upper left maxilla

Referral reason

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Canaray 117341

Overexposure or reconstruction artifact in region of interest in CBCT scan

A localized artifact that resembles overexposure is present at the centre of the cone beam CT scan, and is outlined in red in this report. This artifact is specific to this Vatech scanner. The scan is not definitively diagnostic in the interradicular region of sites 25 and 26, as a result of the presence of this artifact.

Axial views of sites 25 and 26

These axial cross sectional images demonstrate the dark appearance of the bone and mucosa in the region outlined in red in these axial images. This region of artifact is superimposed over the region of interest at the distolingual aspect of tooth 15.

Buccolingual views of sites 25 and 26

These buccolingual cross sectional images demonstrate the vertical artifact that extends to the centre of the scan in the interradicular region of site 25 and 26. Note the heterogeneous appearance of the thickened mucosal lining of the left maxillary sinus, which confirms the presence of the artifact.

Mesiodistal views of posterior second quadrant

These mesiodistal cross sectional images demonstrate the darkening of the trabecular bone in the apical aspect of the interradicular region of teeth 25 and 26. Within the within the region of artifact. This artifacts for darkening exaggerates the level of bone loss associated with the tooth.