Coronal Polish Certification Practice Test

What term describes stains that can be removed from the surfaces of the teeth?

1. Intrusive stains

2. Extrinsic stains

3. Intrinsic stains

4. Permanent stains

The correct answer is: Extrinsic stains

The term that describes stains that can be removed from the surfaces of the teeth is "extrinsic stains." These stains are typically found on the outer layer of the tooth enamel and can be caused by various factors such as food, beverages, tobacco use, and poor oral hygiene practices. Since they reside on the surface, extrinsic stains can often be addressed through regular brushing, professional cleanings, or whitening treatments, making them removable. In contrast, intrinsic stains originate from within the tooth structure and are often due to factors such as dental trauma, certain medications, or developmental issues. These types of stains are more challenging to treat and may not be easily removable through standard dental hygiene practices. Permanent stains imply lasting discoloration that does not respond to conventional cleaning methods. Understanding the distinction between extrinsic and intrinsic stains is crucial for effective dental care and stain management.