If a radiograph shows a large radiolucency associated with teeth #8 and #9, and tooth #9 underwent endodontic treatment but pain persists, what should be the next step?

The scenario presents a situation where a large radiolucency is observed near teeth #8 and #9, with ongoing pain in tooth #9 that has already undergone endodontic treatment. The presence of radiolucency may suggest an area of infection or pathology, possibly involving both teeth.

Choosing to perform endodontic treatment on tooth #8 is warranted in this case, as it is essential to evaluate whether tooth #8 is contributing to the radiolucency and the associated discomfort. Since teeth #8 and #9 are adjacent, it is possible that the issue may not solely reside with tooth #9. By treating tooth #8, the practitioner can address potential sources of infection or other problems that could be causing the persistent pain.

This choice also reflects a desire to maintain tooth structure where possible and to ensure that all potential contributors to the clinical situation are considered. If treatment on tooth #8 alleviates the symptoms, it may also indicate that tooth #9's previous endodontic treatment was adequate, and the pain was indeed stemming from tooth #8.

In contrast, extracting tooth #9 or starting new root canal treatment on it without first addressing tooth #8 doesn’t address the whole potential problem. Referring to a specialist may