Based on the CBCT (3D X-ray) report, there is nothing alarming or dangerous mentioned.
The treated tooth (lower left molar) normally has 2 roots with 3 canals, which is a very common and expected anatomy.
In your wife’s case:
All 3 canals have been identified
Two canals naturally join near the root tip, which is normal
No extra (missed) canal is seen
No root fracture is present (this is very reassuring)
One canal is described as narrow and partially calcified, which can make treatment slightly more challenging, but this does NOT mean the treatment has failed or that anything was done incorrectly.
A small infection area near the root tip is seen, which is common in teeth requiring root canal treatment. This usually heals gradually over weeks to months after proper treatment.
Next Steps
Complete the final filling/crown as advised by your dentist
Take prescribed medicines if given
Follow up with your dentist if pain or swelling persists beyond a few days
Overall, the report supports that the root canal treatment has been done correctly, and there is no major cause for concern.
Health Tips
If u want , you can consult online for further guidance and follow up care