Overview
Huber precipitated silicas have multiple applications in dentifrice products. Huber utilizes its proprietary Controlled Function Technology® services in developing dental silicas over a wide range of structure and morphology that are tailored to deliver a number of performance benefits to meet specific customer needs. Zeodent® dental silicas are compatible with a wide range of therapeutic active ingredients that are used in today’s multifunctional products.
Cleaning
The cleaning/whitening performance in a dentifrice product can be controlled by using the appropriate Huber dental silica, or a blended combination of Huber Silicas. Huber has a range of silica abrasives from high cleaning whitening products to standard cleaning silicas offering minimal tooth sensitivity. The toothpaste market is highly segmented with products customized to meet the needs of specific customer segments. Formulators design toothpaste products to deliver targeted performance using industry standard metrics for cleaning (Pellicle Cleaning Ratio) and abrasion (Relative Dentin Abrasion). Huber cleaning silicas can be predictably selected to meet required product performance targets.
Thickening
The aesthetics of dentifrice products is highly dependent on rheological properties. Huber dental silicas can be used to deliver products that vary from liquids to high viscosity pastes. The primary role of Huber thickener silicas is to control rheology in the manufacture and filling of dentifrice products, to and provide the appropriate aesthetic qualities and stability to the finished toothpaste product. Huber cleaning silicas also contribute to the rheology of dentifrice applications and can be used with Huber thickeners to achieve the desired viscosity.
Optical Properties/Product Clarity
By the selection of the appropriate Huber dental silica, dentifrice products can be formulated to be clear, translucent or opaque. By closely matching the refractive index (RI) of the dental silica to that of the toothpaste humectant vehicles, an optically clear application can be achieved. In particular, the RI and transmission (%T) data are useful in designing products that range from crystal clear to opaque.
Compatibility with Active Ingredients
Another important characteristic of Zeodent precipitated silica products is excellent fluoride compatibility, independent of fluoride sources such as sodium fluoride (NaF) or sodium monofluoro phosphate (MFP). Alternative cleaning agents, dicalcium phosphate and precipitated calcium carbonate (PCC) do not offer similar fluoride compatibility. When properly formulated, Zeodent silicas can be used to obtain “seals of approval” by various professional organizations. The graph below shows the excellent compatibility of Zeodent silicas in toothpaste formulations.
Formulation Considerations
Customer Technical Support
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THERE ARE NO IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Refer to Huber's Standard Conditions of Sale for the only express warranties applicable to the Huber products. Products incorporating Huber products are not warranted by Huber. In no event is Huber liable for consequential damages. Controlled Function Technology® is registered trademark of J.M. Huber Corporation for chemical product modification. Zeodent® and Zeofree® are registered trademarks of J.M. Huber Corporation for silica.
