Which condition contraindicates coronal polishing?

Gingival inflammation is a condition that contraindicates coronal polishing because it indicates an active disease process within the gums. When the gums are inflamed, they are more susceptible to irritation and trauma, which can be exacerbated by the polishing procedure. Polishing can disturb the already weakened gum tissue, potentially causing more harm and discomfort.

In contrast, healthy gums, strong enamel, and previous fillings do not pose the same risks for coronal polishing. Healthy gums indicate a non-inflamed state, strong enamel suggests that the teeth are resilient and can withstand the polishing procedure, and while previous fillings may need consideration, they do not inherently prevent the practice unless there are specific complications present. Therefore, the focus on gingival health is critical in determining whether coronal polishing is appropriate.