How 3D CBCT Detected a Silent, Destructive Periapical Infection
Presenting Issue
Adult patient presented for a routine general exam with no reported symptoms — no pain, no swelling, no discomfort. During examination, Dr. C noticed a faint area of slight darkness on the 2D digital X-ray near two adjacent posterior teeth, both of which had a history of trauma and root canal treatment approximately 20 years prior. The patient had no awareness of any ongoing problem.
What CBCT Revealed
A 3D CBCT scan was taken to investigate the suspicious area further. The scan revealed a large periapical infection involving both teeth — extending significantly beyond what the 2D X-ray could show. The infection had silently developed over years, hidden by overlapping anatomy on conventional radiographs. The scale of the bone involvement was only visible in three dimensions, and would have continued to expand undetected without 3D imaging.
Treatment Outcome
Dr. C performed non-surgical root canal retreatment on both affected teeth, followed by bone grafting to restore the lost bone volume. The infection was resolved before it could progress to tooth loss, spread to adjacent structures, or cause systemic involvement. The patient remains symptom-free. Thanks to modern CBCT technology, a major infection was caught and treated early — without the patient ever feeling a thing.