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Why choose Neo Spectra® ST flow?

Flow on demand handling

Versatile material stays in place until you initiate flow with instrumentation. Available in your choice of Compula Tips or syringes.

One product, several applications

From repairing small defects to ensuring ideal esthetics, you’ll find many ways to get the job done.

Streamlined shade coverage

Chameleon blending enables coverage of the full VITA®² range with only 5 shades. This matching flowable is the perfect compliment to Spectra ST universal composite.

Esthetics that last

Get more from your flowable composite with trusted strength, stain resistance and great shine after polishing.

"Superior flow with nice chameleon effect."

Dr. Tobias Neumann, Heidenheim, Germany

"Adaptation and stackability are 100% convincing."

Dr. Thomas Weinberger, Linz, Austria

“Bulk fill composites are fast and easy to use for larger cavities, but for esthetically challenging cavities, the use of a conventional, highly esthetic layering composite should be considered as an alternative.”

Prof. Dr. Claus-Peter Ernst, Mainz, Germany

Before & After

Recurrent decay was present under the previous DO and MO restorations.

Nearly invisible: the restoration after moistening with saliva.


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Neo Spectra® ST flow is a visible light cured flowable composite resin restorative material designed for enhanced simplicity and versatility in esthetic flowable applications.

It is indicated for use in all traditional flowable indications including anterior and posterior teeth for direct restoration of cavities (except occlusal stress bearing Class II cavities), lesions, build-up of teeth, repair of defects, pit and fissure sealants, and cementation of light transmissible indirect restorations.

SphereTEC® is the new proprietary filler technology used in Neo Spectra® ST.

The SphereTEC® filler particle manufacturing process uses submicron glass and spray-granulation to produce well-defined, pre-polymerized spherical filler particles. 

The SphereTEC® fillers’ morphology, particle size distribution and surface microstructure are the key for the excellent handling, strength, and polishing characteristics of Neo Spectra® ST. 

Neo Spectra® ST flow composite restorative is available in pre-dosed Compula Tips containing 0.25 g of material with a small dispensing tip for easy cavity access & syringes containing 1.8 g of material, with small, disposable syringe tips for easy cavity access. 

Neo Spectra® ST flow is designed to perfectly match Neo Spectra® ST (A1, A2, A3, A3.5, A4, BW) and Neo Spectra® ST Effects (D1, D3, E1) universal composite shades. It also has excellent polish and stain resistance, so the user essentially selects the handling that is appropriate for the application and can count on the same great aesthetic results. 

Neo Spectra® ST flow is chemically compatible with conventional (meth)acrylate-based dentin/enamel adhesives including Dentsply Sirona adhesives designed for use with visible light cured composite restoratives, like Prime&Bond universal™ adhesive. 

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Find out more about our Restorative products and solutions.

1. Dentsply Sirona User Evaluation, 2021

2. VITA® is not a registered trademark of Dentsply Sirona.