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Troublesome / painful / cracked tooth (Endodontic)
Region of interest
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1. Enamel-lined invagination extending from crown of tooth 27 to the base of furcation
An enamel-lined invagination extends from the crown of tooth 27 to the base of the furcation. The pulp chamber has been displaced by this invagination, which confirms its existence. This is the source of the rarefying osteitis at tooth 27, which has an epicenter in the furcal region of the tooth. No periapical pathology is present.
Orthogonal views of tooth 27
These orthogonal cross-sectional images demonstrate the epicenter of the rarefying osteitis in the furcal region of tooth 27, which is secondary to the invagination that extends to the crown of the tooth. Note the absence of any pathology in the periapical regions of the roots of tooth 27, as well as the dilaceration in the apical third of the distobuccal root of the tooth. No signs of root fracture are present.
Axial views of tooth 27
These axial cross-sectional images demonstrate the faint enamel-lined invagination that extends through the internal aspect of the lingual portion of the crown at site 27. The displacement of the pulp chamber by this invagination is evident in these images, as is the extension of the invagination into the furcal region of the tooth at the epicenter of the radiolucent lesion. The furcal surface of the palatal root of tooth 27 exhibits a prominent cleft, which appears to be continuous with the invagination that extends through the crown of the tooth.
Buccolingual views of tooth 27
These buccolingual cross-sectional images demonstrate the eccentric position of the pulp chamber in tooth 27, as well as the faintly visible enamel-lined invagination that bridges the occlusal and furcal surfaces of the tooth.
Mesiodistal views of tooth 27
The furcal epicenter of the rarefying osteitis associated with tooth 27, as well as the dilacerated root apices of the tooth are evident in these images. The rarefying osteitis drains through the distal furcation of the tooth.
2. Mild mucositis of left maxillary sinus
The left maxillary sinus exhibits mild mucositis, which represents an incidental finding with no clinical significance.