HOSA Dental Terminology Practice

What is the primary use of a metal matrix band in dentistry?

1. To form a temporary wall in Class II amalgam

2. To remove pulp tissue

3. To smooth and shape canals

4. To pack gutta percha in canals

The correct answer is: To form a temporary wall in Class II amalgam

The primary use of a metal matrix band in dentistry is to form a temporary wall in Class II amalgam restorations. When performing a Class II preparation, which involves cavities that extend into the interproximal area between two teeth, the metal matrix band serves an essential function by providing a supportive structure that helps retain the restorative material. This band wraps around the tooth, creating a barrier that allows for the proper containment of the dental material, ensuring it maintains its shape and position while hardening. This is crucial for achieving the desired anatomical contour and restoring the proper function of the tooth, making the matrix band an indispensable tool for dental professionals during this type of restorative procedure.