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Troublesome / painful / cracked tooth (Endodontic)
Region of interest
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1. Unfilled lingual canal in tooth 34
Tooth 34 has been endodontically treated. The existing obturation in the buccal canal extends to the radiographic apex. There is an unfilled lingual canal in tooth 34, which appears calcified. No signs of periapical or periradicular pathology are present despite the presence of this unfilled canal. There are no radiographic signs of root fracture or root perforation in this tooth.
2. Lingual radicular groove in tooth 34
There is a lingual radicular groove present along the mesiopalatal aspect of the root of tooth 34, which involves the middle third of the root. Although this is a normal morphologic variant, the presence of this groove should be noted so as to reduce the risk of a root perforation if endodontic re-treatment is attempted.
Axial views of tooth 34
These axial cross-sectional images demonstrate the presence of a lingual radicular groove along the mesiopalatal aspect of the middle third of the root of tooth 34.
Buccolingual views of tooth 34
These buccolingual cross-sectional images demonstrate the presence of an unfilled lingual canal in tooth 34, which appears calcified. The adjacent buccal and lingual cortical plates appear intact.
Mesiodistal views of tooth 34
These mesiodistal cross-sectional images demonstrate the normal appearance of the alveolar bone located mesial and distal to the root of tooth 34. The left mental foramen is located distal to the root apex of tooth 34.