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Troublesome / painful / cracked tooth (Endodontic)
Region of interest
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1. External root resorption of tooth 12
There is an ill-defined, irregular focus of external resorption on the buccal aspect of the cervical half of the crown of tooth 12, and the coronal half of the root of tooth 12. This resorptive defect extends subcrestally and appears to be continuous with the root canal system of tooth 12. The periodontal ligament space is not completely visualized around the root circumference of this tooth, which suggests the possibility of ankylosis. The periapical and periradicular bone surrounding the root of this tooth appears normal.
Axial views of tooth 12
These axial cross-sectional images demonstrate the focus of external resorption involving the buccal aspect of the crown of tooth 12 which extends to the root canal system. There are also regions of resorption involving the coronal half of the root of tooth 12, along the distobuccal aspect of the external root surface, and also within the dentin lining the root canal system.
Mesiodistal views of tooth 12
These mesiodistal cross-sectional images demonstrate the external resorption present within the crown and along the distal surface of the coronal half of the root of tooth 12.
Buccolingual views of tooth 12
These buccolingual cross-sectional images demonstrate the extent of external resorption involving the buccal aspect of the crown of tooth 12, which appears to be continuous with the root canal system.
High crown-to-root ratio of teeth 11 and 21
Teeth 11 and 21 exhibit a high crown-to-root ratio, which may adversely affect the longevity of these teeth.
2. Antrolith apical to tooth 15
An antrolith is present within the mucosa lining the floor of the maxillary sinus apical to tooth 15. This is a non-significant incidental finding.