What is Coronal Polishing?

Coronal polishing is a technique used to remove plaque and stains from the coronal surfaces of the teeth. Polishing the crowns of the teeth is considered mainly cosmetic, but there are instances in which coronal polishing has therapeutic value also.

In some states, coronal polishing is delegated to registered or expanded-function dental assistants who have had special training in this procedure. Coronal polishing is strictly limited to the clinical crowns of the teeth. Coronal polishing is not a substitute for oral prophylaxis. Even if an assistant is not required to perform coronal polishing, the assistant should become familiar with it because it is likely he or she will have to set up for and assist with such a procedure.

<aside> 📌

Removal of coronal plaque after prophylaxis helps reinforce to patients what their teeth should feel like after proper brushing and flossing, as well as brushing of the tongue.

</aside>

Benefits of Coronal Polishing

• Polishing prepares the teeth for the placement of dental sealants.
• Smooth tooth surfaces are easier for the patient to keep clean.
• The formation of new deposits is slowed.
• Patients appreciate the smooth feeling and clean appearance.
• Polishing prepares the teeth for the placement of orthodontic brackets and bands.
• Polishing with pumice, a non-fluoridated abrasive, is important before sealant placement.

Methods of Removing Plaque

Rubber Cup Polishing

This is the most common technique for removing stains and plaque and polishing the teeth.

A rubber polishing cup is rotated slowly and carefully by means of a prophylactic angle attached to the slow-speed handpiece.

The rate at which appropriately chosen stain and plaque are removed depends on the abrasiveness of the polishing paste, the pressure applied to the rubber cup against the tooth, the length of time required for polishing, and the technique used to perform the polishing.