HOSA Dental Terminology Practice

Which of the following materials is often used to fill cavities?

1. Plaster

2. Amalgam or composite material

3. Veneers

4. Dental crowns

The correct answer is: Amalgam or composite material

Amalgam and composite materials are commonly used to fill cavities due to their specific properties and effectiveness in dental restorations. Amalgam is a durable mixture of metals, primarily used for posterior (back) teeth where strength is crucial for chewing and grinding. Its resistance to wear makes it a practical choice for fillings that must withstand significant pressure. Composite materials, on the other hand, are made from a resin and are designed to match the natural color of teeth. They are particularly favored for fillings in visible areas of the mouth because they provide aesthetic benefits while also bonding well to the tooth structure. Composite materials can be used to build up the tooth's natural contours, promoting a more appealing appearance. In contrast, the other materials listed serve different purposes in dentistry. Plaster is typically used for making dental models and impressions, not for filling cavities. Veneers are thin shells placed on the front surface of teeth to improve aesthetics and correct minor imperfections, while dental crowns cover entire teeth but are used more for restoring severe damage or decay rather than filling cavities.