Cone beam computed tomography in implantology: numbness after insertion (Veraview X800) Images taken with Veraview X800, provided by Dr. Dennis Rottke

Exposure parameters: 100 kV - 8 mA - 9.4 s - 638 mGycm2, FOV: 10 x 5 cm

Clinical information and questions

The patient reported the insertion of two implants in the posterior region of the fourth quadrant six days ago. After the anesthesia had worn off, he noted a numbness on the right side of the lower lip and on the skin surface in its vicinity. The DVT examination should now rule out an injury to the mandibular canal.

In region 45 as well as 46 detection of two inserted implants. The implant in region 45 penetrates from cranial and lingual into the right mandibular canal as well as into its leg ascending mentally to the foramen and relocates half of the canal lumen. The implant in region 46 also penetrates the right mandibular canal from the cranial and lingual side and repositions half of the canal lumen.


Penetration of the mandibular canal roof by the implants in regions 45 and 46 and presumably consecutive direct compression of the nerve tissue of the right-sided inferior alveolar nerve.

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