HOSA Dental Terminology Practice

What type of crown is made with a metal base fused with porcelain for added aesthetic appeal?

1. Porcelain-fused-to-gold (PFM)

2. Full crown

3. Onlay

4. Dowel crown

The correct answer is: Porcelain-fused-to-gold (PFM)

The type of crown made with a metal base fused with porcelain for added aesthetic appeal is known as a porcelain-fused-to-gold (PFM) crown. This crown combines the strength and durability of a metal base, which is typically gold or another alloy, with the aesthetic qualities of porcelain, allowing it to blend seamlessly with the natural appearance of surrounding teeth. The fusion of these two materials results in a crown that is not only strong enough to withstand the forces of chewing but also attractive in appearance, making it an ideal choice for both posterior and anterior restorations. The porcelain provides a natural tooth-like color and translucency, while the metal base ensures structural integrity and longevity. Other types of crowns mentioned have different constructions and purposes. A full crown covers the entire tooth and can be made from various materials, but it doesn’t specifically denote the fusion of porcelain and metal. An onlay is a type of restoration that is not a full crown, as it only covers a portion of the tooth structure; it can be made of composite resin or metal but is not defined by the porcelain-fused method. A dowel crown, often referred to as a post and core crown, is utilized when there is insufficient tooth structure remaining to support a crown