Bionic Hair & evo Family

For several months now, our new evo brushes with bionic hair have been inspiring many dental technicians around the world. What is behind the revolutionary brush hair, why did Renfert decide to develop it and how are we now setting new standards with bionic hair? We had a talk with Cim Özyurt (Product Manager) about this.

For more than four decades, Renfert has been developing high-quality dental brushes for layering ceramic materials. The introduction of bionic hair is another milestone in our search for improved materials and technologies. This newly developed fiber is based on our long experience in ceramic brushes and is the result of intensive research and development.

“The characteristics of high-quality natural hair brushes make them ideal for  dental applications. Thanks to the scaly hair surface, they are superior to previous alternatives due to their combination of fineness, resilience and moisture management. However, over time the quality is subject to increasing variability, while the availability of the raw material is decreasing”.

Bionic hair combines the positive features of natural and synthetic hair brushes while overcoming their disadvantages. The material has exceptional elasticity and remarkable durability, resisting fraying and kinking – even after intensive use. These properties make bionic hair ideal for precise and demanding dental applications, such as ceramic layering. “An important aspect in the development of bionic hair was also the careful use of resources and the welfare of the animals,” explains Cim Özyurt. Renfert has created a material that not only impresses with its performance, but also reflects responsibility for the environment and animal welfare. Bionic hair eliminates the risk of import bans and inconsistent quality of natural hair, contributing to a more reliable and ethical production chain.

“With bionic hair, we are offering more than just an alternative – bionic hair is becoming the solution.

Three of our brush models are currently available with bionic hair: our “evo” edition from lay:art evo, Genius evo and Kolinsky evo.

In an in-depth interview (published in dental dialogue, issue 05/2024), Cim Özyurt, Product Manager at Renfert, provides insights into the challenges and successes associated with the development of bionic hair. He emphasizes the importance of effective moisture management and the tension that is a hallmark of bionic hair. These factors are critical to ensuring the performance and precision that dental technicians expect from their tools.

“Bionic hair absorbs moisture in a similar way to natural hair due to the composition of differently treated fiber filaments. This allows to replicate the characteristic flame-shaped brush tip. We also have developed a process to selectively place fine hairs in the tip of the brush. This increases the amount of hair in the tip. The result is a stronger tip with high flexibility – even under heavy use.”

Layering with bionic hair has significant advantages. Bionic hair brushes adapt to the ceramicist’s individual techniques and movement patterns, resulting in improved handling and quality of results. The molecular structure of bionic hair allows for a consistent level of quality and performance that cannot be achieved with conventional materials.

“The effective moisture management of a brush is always a key element. In addition, ceramic layering requires precision. The brush needs a high tension to apply small and large amounts of ceramic material in a controlled manner.”

Bionic hair is more than just an alternative to existing products – it is a breakthrough solution that is revolutionizing everyday ceramic dental work. With bionic hair, Renfert continues its tradition of innovation and offers dental laboratories a tool that is not only technically superior, but also takes their needs into account.

Read the full, german languaged article here (published by mgo-Fachverlage, dental dialogue, issue 5/2024) and find out how bionic hair can change your way of working in the dental laboratory.

Link to PDF