What should a dental assistant watch for during the polishing evaluation?

During the polishing evaluation, it's essential for a dental assistant to closely observe evidence of trauma to the gingival margins or soft tissues. This is crucial because trauma in these areas can indicate that the polishing technique was too aggressive or that improper instruments were used, which could harm the patient’s oral health. Monitoring for trauma helps ensure that the procedure is not only effective but also safe, minimizing any potential side effects on the tissues.

While the other aspects mentioned, such as overly shiny polished surfaces and patient complaints of discomfort, can also be relevant, they do not encompass the critical health concerns related to soft tissue trauma during polishing. Focusing on the health implications of inadequate polishing techniques is paramount for maintaining patient safety and comfort in any dental procedure.