National Dental Assisting Examining Board (NDAEB) Practice Exam

In areas where strength is the primary concern, which type of composite would be selected?

1. Microfilled

2. Macrofilled

3. Hybrid

4. Flowable

The correct answer is: Macrofilled

When strength is the primary concern in dental restorative materials, macrofilled composites are the preferred choice. Macrofilled composites contain larger filler particles, which contribute to increased strength and durability compared to other types of composites. This superior strength makes macrofilled composites particularly suitable for posterior teeth restorations, which endure greater occlusal forces and require resilient materials to withstand wear over time. Microfilled composites, while offering excellent polishability and aesthetics, do not possess the same level of strength due to their smaller filler particles. Hybrid composites combine properties of both microfilled and macrofilled composites, offering a balance of strength and aesthetic appeal. Flowable composites, on the other hand, are designed for specific applications where flexibility and ease of placement are essential but do not provide the high strength necessary for load-bearing restorations. Hence, when prioritizing strength, the macrofilled composite stands out as the ideal option.