What is a common disadvantage of compomers compared to traditional composites?

Compomers, or composite resins that contain glass-ionomer components, are known for certain advantages, such as fluoride release, which can be beneficial for dental health. However, a common disadvantage of compomers compared to traditional composites is their tendency to exhibit more marginal leakage. This leakage can occur due to the difference in bonding properties and mechanical strength when compared to conventional composite materials.

The bonding strength of compomers can be lower, which may lead to marginal gaps at the interfaces with tooth structure. These gaps can allow bacteria and fluids to penetrate, potentially resulting in secondary caries or failure of the restoration over time. Traditional composites, on the other hand, typically have superior adhesive properties and lower marginal leakage rates, resulting in improved longevity and performance in restorative applications.

In contrast, options related to strength and wear resistance, fluoride release, and curing time do not accurately depict the overall performance of compomers relative to traditional composites. While compomers have some benefits, such as fluoride release, the comparative disadvantage of increased marginal leakage is a significant concern in their use for dental restorations.