HOSA Dental Terminology Practice

Which of the following instruments is typically used to hold a matrix band in place?

1. Wooden wedge

2. Narrow spatula

3. Boley gauge

4. Amalgam well

The correct answer is: Wooden wedge

The instrument typically used to hold a matrix band in place is the wooden wedge. In dentistry, a matrix band is often used in restorative procedures to form a temporary wall for filling materials. The wooden wedge helps to secure the matrix band tightly against the tooth, ensuring that there is proper adaptation and preventing any leakage of the restorative material during placement. Additionally, the wedge helps to create a tighter contact between the restorative material and the tooth structure, which is essential for a successful restoration. The other instruments listed have different primary functions: the narrow spatula is typically used for mixing and applying dental materials, the Boley gauge is used for measuring dimensions such as tooth width or height, and the amalgam well serves as a container to hold dental amalgam before it is placed in the cavity. Their roles do not include securing the matrix band, underscoring the importance of the wooden wedge in this context.