Tube current has a significant influence on the diagnostic detection of RFs in CBCT images. Despite the acceptable diagnosis of RFs using 4.0 and 5.0 mA, those settings had lower discrimination abilities when compared with settings of 8.0 and 10.0 mA.

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Aims: This clinical case shows the importance of computed tomography as a complementary exam for the surgical planning and treatment of impacted third molar extraction surgery when it is in close contact with the inferior alveolar nerve. Presentation of the Case: This study reports a clinical case where an impacted lower third molar indicated for extraction had its roots in intimate contact with the inferior alveolar nerve, requiring a cone beam computed tomography for the planning and execution of the surgery. Discussion: Although the CBCT scan subjects the patient to a higher dose of radiation compared to panoramic radiography, it offers a 3D view of the local anatomy, preventing possible accidents and complications related to the surgical procedure. Case Study