What type of stains can coronal polishing effectively remove?

Coronal polishing is specifically designed to effectively remove extrinsic stains, which are stains that are formed on the surface of the teeth due to external factors. Common sources of these extrinsic stains include substances like coffee, tea, tobacco, and certain food items that can discolor the enamel without penetrating it.

The polishing procedure involves using a special paste and a rotating rubber cup or brush, which helps to scrub away these surface stains. Since extrinsic stains do not involve changes within the tooth structure itself and remain on the outer layer, they are well-suited for removal through mechanical polishing techniques.

Intrinsic stains, on the other hand, occur within the tooth structure itself due to factors like developmental issues, certain medications, or trauma, making them much more difficult, if not impossible, to remove through coronal polishing alone. Furthermore, not all stains—such as those associated with dental plaque—may be removable through this process, especially since they need proper cleaning and oral hygiene to manage effectively. Thus, the ability of coronal polishing to target specific types of surface stains highlights its usefulness in maintaining aesthetic dental appearance and patient satisfaction.