HOSA Dental Terminology Practice

What does "etching" involve in dental procedures?

1. Using heat to shape materials

2. Polishing the surface of a tooth

3. Using acid to prepare a surface

4. Applying a fluoride treatment

The correct answer is: Using acid to prepare a surface

Etching in dental procedures refers to the process of using acid to prepare a surface before applying bonding agents or dental materials. This technique enhances the adhesion of materials such as sealants, composites, or other restorative agents to the tooth structure. The acid creates micro-roughness on the enamel or dentin by actively removing a thin layer of material, which increases the surface area and improves the mechanical bond between the tooth and the material being applied. This step is crucial in achieving a durable and effective bond, ensuring the longevity and functionality of the dental restoration. Etching is specifically a fundamental part of procedures like composite resin bonding and placement of dental sealants, making option C the correct choice in this context.