Coronal Polish Certification Practice Test

What substance is used in the air-polishing technique along with warm water?

1. Sodium bicarbonate

2. Calcium carbonate

3. Potassium nitrate

4. Magnesium sulfate

The correct answer is: Sodium bicarbonate

The air-polishing technique typically utilizes sodium bicarbonate, commonly known as baking soda, as its primary abrasive agent. This method involves a specialized device that sprays a mixture of warm water and sodium bicarbonate in a fine mist. Sodium bicarbonate is effective for removing extrinsic stains from the teeth, such as those caused by coffee, tea, or tobacco, due to its gentle yet efficient abrasive properties. Sodium bicarbonate is favored because it is non-toxic, minimally abrasive, and provides a better patient experience when compared to other abrasive agents. Its fine particles allow for easier application and comfortable use during cleaning procedures. Other substances listed, like calcium carbonate, potassium nitrate, and magnesium sulfate, are not typically used in air-polishing systems for dental hygiene procedures focused on stain removal. Thus, the choice of sodium bicarbonate aligns with the goals of air polishing in maintaining patient safety and achieving optimal oral hygiene results.