Enhanced Dental Composition with Optimized Silanated Glass Flakes

An improved dental composition featuring silanated glass flakes with tailored thickness, surface modification, and arrangement to enhance dispersion, bonding, and reinforcing effects, resulting in superior esthetic appearance, mechanical properties, and flowability.

The original patent disclosed a dental composition comprising a dental filler containing a structural filler and silanated glass flakes, providing excellent esthetic appearance. However, the original patent's limitations include the potential for agglomeration, inadequate bonding, and suboptimal reinforcing effects. The new inventive concept addresses these limitations by introducing optimized silanated glass flakes with improved dispersion, bonding, and reinforcing capabilities.

The new inventive concept comprises a dental composition featuring silanated glass flakes with tailored thicknesses (10 nm to 500 nm), surface modification with hydrophobic agents, and specific arrangements (aspect ratio ≥ 50:1) to optimize their reinforcing effect. The silanated glass flakes can be treated with coupling agents to enhance bonding to the polymerizable resin. The inventive concept also encompasses a system for delivering the dental composition, comprising a cartridge and dispenser designed to improve flowability. Furthermore, the silanated glass flakes can be designed with a hierarchical structure featuring nano-scale surface features to enhance mechanical properties and aesthetics.

The new claims introduce novel features such as tailored thicknesses, surface modification, and specific arrangements of the silanated glass flakes, which provide improved dispersion, bonding, and reinforcing effects. These features are non-obvious and distinct from the original patent, demonstrating a significant inventive step.

Alternative embodiments of the inventive concept could include varying the thickness, surface modification, and arrangement of the silanated glass flakes to achieve specific properties. Additionally, different types of polymerizable resins, structural fillers, and coupling agents could be used to further optimize the dental composition.

The enhanced dental composition has significant commercial potential in the dental industry, particularly in the development of high-performance restorative materials with improved esthetic appearance, mechanical properties, and flowability. The target market includes dental manufacturers, clinicians, and patients seeking advanced dental care solutions.