Netfil processing involves the degassing of very high viscosity composites also. Before using nano pore -free Netfil processed composites, it must be understood that a crucial aspect of evaluating the mechanical reliability of composite veneers and bridges is not merely to measure the enhancement of modulus or nominal strength, but a deeper understanding of the loading state and damage tolerance of the dental restoration. Owing to their geometry, composite veneers for example operate predominantly under plane stress conditions rather than plane strain. This distinction is fundamental. In plane stress, stresses are distributed primarily within the plane of the veneer, allowing greater strain accommodation and reducing the likelihood of catastrophic fracture governed by classical fracture mechanics.

If a veneer were to transition toward a plane strain condition—typically associated with thicker sections or constrained geometries—the role of fracture mechanics would become dominant. Under plane strain, crack tip constraint increases, stress intensity factors rise sharply, and even small defects or pores can act as critical crack initiators, significantly compromising longevity. From a clinical perspective, porosity is undesirable for both thin or thick restorations that are repeatedly subjected to very fast occlusal loading.

The true performance metric for composite veneers, therefore, lies in damage tolerance rather than peak strength. In the oral environment, veneers are exposed to high strain-rate loading, driven by rapid and intermittent masticatory forces. These loads are applied almost instantaneously, and materials that lack adequate damage tolerance tend to fail in a brittle manner under such conditions, even if their ultimate strength of composite in MPas appear sufficient.

The NETFIL macro zero-memory mesh approach directly addresses this challenge when used in conjunction with the

 NETFIL processed chairside resin. By significantly reducing intrinsic nano porosity, the resin matrix is rendered less susceptible to crack initiation and unstable crack growth. This suppression of internal flaw populations delays the onset of fracture-mechanics-driven failure, keeping the veneer firmly within a plane-stress-dominated response regime.

Simultaneously, the macro-mechanical keying introduced at every lamina through the NETFIL mesh tool creates a highly effective  stress-coupling mechanism. These macro keys bind individual layers into a mechanically unified structure, enabling efficient redistribution of stresses and strains across the veneer thickness and along the surface. Instead of allowing localized stress accumulation or shear slip between layers, the structure dissipates applied loads over a larger effective volume.

This combined effect—reduced intrinsic porosity and enhanced interlaminar keying—significantly improves the damage tolerance of the veneer under high strain-rate loading. Rather than fracturing abruptly under rapid occlusal forces, the veneer exhibits a more stable, distributed deformation response. Micro-damage is arrested before it can evolve into macro-cracks, thereby extending service life without compromising esthetics.

In this context, our NETFIL mesh is not merely a stiffness-enhancing tool but a damage-mitigation strategy specifically aligned with the real loading conditions experienced by composite veneers. By suppressing fracture-mechanics  and enhancing stress–strain distribution, our NETFIL mesh offers a fundamentally more reliable pathway to long-term veneer performance under realistic intraoral conditions.

Our NETFIL chairside mesh tool can be used along with high viscosity condensible chairside or laboratory composite.