Yearly Archives: 2012


How was that missed? (Chronic Apical Periodontitis / Rarefying Osteitis) 1

This months how was that missed is a case of chronic apical periodontitis or rarefying osteitis.  The first radiograph is 2 years prior to the second one. Initial interpretation: No initial interpretation as this radiograph was made for an implant in the maxillary canine region and nothing else was evaluated.  […]


SLOB rule (Same-Lingual, Opposite-Buccal) examples with answers 2

The last few weeks I have posted several radiographs to practice the SLOB rule using both vertical angle changes and horizontal angle changes.  Below are the examples again with the location of the labeled ‘unknown’ object along with the results of the online polls to state your answer. Vertical Angle […]


Case of the week: Double Lingual Foramina 4

This weeks case is an interesting variant of normal anatomy – two lingual foramina seen on a periapical radiograph.  Some patients can have up to three lingual foramina. Note the two well-defined, circular radiolucent entities inferior to the mandibular central incisors.  The superior one is larger than the inferior one. […]