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Region of interest
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1. Non-integrated bone fragment at the buccal aspect of the alveolar crest at maxillary midline
A small fragment of sequestered bone is present at the buccal aspect of the alveolar crest at the maxillary midline. This fragment has likely formed secondary to a history of atrophy of the maxillary alveolar process. This fragment can be removed during bone augmentation or implant placement.
2. Mild mucositis of both maxillary sinuses
Mild mucositis is present in both maxillary sinuses. This represents an incidental finding with no clinical significance.
Sagittal views of left maxillary sinus
These sagittal cross-sectional images demonstrate the presence of a transverse septum on the sinus floor apical to sites 26 and 27, as well as the mild mucositis that overlies the floor of the left maxillary sinus. The transverse septum may slightly impede a sinus lift in this region, but should not impede a potential sinus lift at site 25.
Sagittal views of right maxillary sinus
These sagittal cross-sectional images demonstrate the transverse septum that is present on the sinus floor apical to site 16. The mild mucositis that overlies the sinus floor is also evident in these images. The transverse septum may impede a potential sinus lift at site 16, but should not impede a sinus lift at site 15.
3. Retained root fragments at site 33
Small root fragments are retained in the alveolar process at site 33. The remainder of the extraction socket at this site does not exhibit any reparative bone formation. These fragments would require removal prior to implant placement.
4. Rarefying osteitis at tooth 43
Tooth 43 exhibits rarefying osteitis on its apical and buccal surfaces. This suggests that the tooth has been devitalized. The loss of the buccal cortical plate at this site reduces the available bone for implant placement.
5. Widened PDL space at retained root of tooth 44
The periodontal ligament space is widened in the periapical region of the retained root of tooth 44. A small dehiscence is present in the buccal cortical plate in this region. The retained root of tooth 44 requires extraction.
Inferior and lingual position of the right inferior alveolar nerve canal
The right inferior alveolar nerve canal passes through the lingual inferior aspect of the right mandibular body in the molar regions. The alveolar bone in the posterior fourth quadrant appears normal and has a density that is similar to that of the adjacent trabecular bone.
Atrophic bone in posterior third quadrant
The left inferior alveolar nerve canal passes through the superior half of the posterior left mandibular body. This significantly reduces the available bone for implant placement in the posterior third quadrant.
6. Mild cervical degenerative joint disease
Small osteophytes and mild subchondral sclerosis are present in the articular regions of the Atlas and dens of the cervical vertebrae. This is a common incidental finding with no clinical significance that is suggestive of mild cervical degenerative joint disease.