In which scenario is coronal polishing contraindicated?

Coronal polishing is a procedure designed to remove plaque, biofilm, and surface stains from teeth, typically using a rotating brush or rubber cup with a polishing agent. While it is an effective and beneficial practice in many dental hygiene contexts, it is contraindicated in certain situations to protect patient health.

In the case of active periodontal disease, performing coronal polishing could exacerbate the condition. This is because the procedure involves the removal of plaque and calculus from the tooth surfaces, which could irritate already inflamed gingival tissues. Active periodontal disease is characterized by the presence of deep pockets, infection, and inflammation, where the risk of further irritation and damage is high. As such, performing coronal polishing in these circumstances may not only be ineffective but could also lead to increased discomfort for the patient and potential worsening of the periodontal condition.

In contrast, the other scenarios presented do not hold the same risk. Patients with a history of orthodontic treatment, those who regularly receive fluoride treatments, and those who have recently undergone teeth whitening do not have contraindications that inherently preclude the use of coronal polishing. Therefore, understanding the implications of periodontal health is crucial in determining when coronal polishing should be avoided.