A 48-year-old female presented with discomfort and slight numbness radiating to the right anterior lip. X-Ray #1 shows a 3-unit bridge with an old root canal and a long post in tooth #29. Also, there was an overfill of gutta percha and a space present between the post end and the gutta percha.
In addition, there was a periapical radiolucent area very close to the mental nerve. Clinically, periodontal probing was within normal limits. There was discomfort to percussion and palpation. Diagnosis: Periapical abscess as a result of a failing root canal. Treatment consisted of an apicoectomy with MTA cement retrograde filling.
(*Please see MTA information in the advances in technologies section)
Notes: The mental foramen is very close to the apex of tooth #29. The numbness was a result of the apical (abscess) pressure on the mental nerve.
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