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New Neo Spectra ST flow – the simpler, more versatile aesthetic flowable composite

Thanks to the unique construction of SphereTEC fillers, TPH Spectra ST flow enables streamlined shade coverage, optimized handling, and lasting aesthetics.

Dentsply Sirona’s new Neo Spectra ST flow extends the benefits of novel SphereTEC filler technology to flowable composites. Excellent chameleon blending enables 5 shades to cover the full VITA range, and flow-on-demand handling provides versatility across all traditional flowable indications.  

Dentsply Sirona’s latest innovation in composite filler technology, SphereTEC, was introduced to the dental industry in 2015. Over 14 million composite restorations later, Dentsply Sirona introduces an expanded portfolio with SphereTEC technology. Clinicians will now be able to enjoy SphereTEC benefits in all composite cases with the comprehensive Neo Spectra ST portfolio. ‘Neo’, meaning ‘new’ or ‘revived’ emphasizes the modern, cutting edge approach taken to optimise our composite portfolio. The ‘Spectra ST’ part of the brand explains the portfolio’s coverage of the full range  or ‘Spectra’ of handling preferences and aesthetic needs optimised with SphereTEC (ST) technology. 

Designed to perfectly complement Neo Spectra ST universal composite, new Neo Spectra ST flow is characterized by its cutting-edge filler technology, SphereTEC - like with its universal composite counterpart, SphereTEC  technology  enables Neo Spectra ST flow composite to excel in the areas that matter most to dentists: handling, aesthetics, and durability. SphereTEC fillers, proprietary to Dentsply Sirona and Neo Spectra ST Composites, are spherical-shaped, pre-polymerised fillers created from sub-micron barium glass. Spherical-shaped filler particles  allow for excellent adaptation to cavity surfaces, and work together with smaller irregular-shaped filler particles in the material to achieve versatile, flow-on-demand-handling. Precise match of SphereTEC filler to the Neo Spectra ST flow resin matrix creates an excellent chameleon shade blending effect, and a perfect match to Neo Spectra ST universal composite shades. The unique structure of SphereTEC fillers maximizes composite strength and durability, while their sub-micron primary particle size ensures excellent aesthetics and polishability. 

The new Neo Spectra ST flow composite uses five universal CLOUD shades A1 to A4 to cover the entire VITA Classic range, streamlining flowable composite inventory and ensuring highly aesthetic clinical results thanks to their distinct chameleon effect. Neo Spectra ST flow composite also offers one bleach shade (BW), two opaque dentin shades (D1 and D3), and one translucent enamel shade (E1) to accommodate less frequent case demands. 

For further information about the new Neo Spectra ST flow composite  available from Dentsply Sirona, visit 


1. VITA is not a registered trademark of Dentsply Sirona Inc.

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