Which condition is a common contraindication for coronal polishing?

Uncontrolled diabetes is a significant contraindication for coronal polishing due to the increased risk of infections and complications associated with the condition. Individuals with uncontrolled diabetes often have compromised immune responses, making them more susceptible to oral infections after procedures like coronal polishing. The mechanical action during polishing can irritate the gums and expose underlying tissues, which can lead to increased risk for those with unstable blood sugar levels. Proper management of diabetes is essential to ensure that dental procedures, including coronal polishing, can be performed safely without putting the patient at risk for adverse effects.

In contrast, conditions such as pregnancy may require special considerations, but they are not universally contraindicated. Healthy teeth and recent dental cleaning also do not prevent a patient from undergoing coronal polishing; in fact, coronal polishing is often performed more safely on patients with good oral health and after their teeth have been cleaned professionally.