National Dental Assisting Examining Board (NDAEB) Practice Exam

Which component is essential when mixing luting cement?

1. Water

2. Curing light

3. Powder and liquid

4. Silicone base

The correct answer is: Powder and liquid

When mixing luting cement, the essential component is the combination of powder and liquid. This mixture creates the necessary consistency and chemical properties that allow the luting cement to easily adhere to both the dental materials being bonded and the tooth structure itself. The powder typically contains various polymers and fillers, while the liquid provides the necessary solvent and initiators that activate the cement. Achieving the correct ratio between powder and liquid is crucial, as it influences the setting time, strength, and durability of the cement once it sets. A properly mixed luting cement ensures effective bonding of restorations such as crowns, bridges, and other dental appliances, thus playing a critical role in the overall success of dental treatments.