HOSA Dental Terminology Practice

What is the primary use of a broad lab spatula?

1. To hold amalgam in order to load carrier

2. To mix rubber base or stone

3. To cut bone

4. To mix alginate

The correct answer is: To mix alginate

The primary use of a broad lab spatula is to mix materials, particularly alginate, which is a common impression material used in dentistry. Alginate is a hydrophilic material that requires thorough mixing to achieve a smooth, homogeneous texture that facilitates accurate impressions of the dental anatomy. The broad design of the spatula provides an optimal surface area, allowing for effective incorporation of powder and liquid to avoid clumping and ensure even distribution. This ensures the final mix will perform well when creating impressions for casts or models. While there are other tools used for different purposes in a dental lab setting, such as holding amalgam or mixing rubber base or stone, the broad lab spatula is specifically meant for tasks requiring uniform mixing of specific materials like alginate, making it essential in the process of preparing impressions in dental practice.