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About us

The story of Dentapreg® and Fibrafill® product lines started in - of all places - a kindergarten. This was way back in Communist Czechoslovakia when two friends were playing together in a sandbox. One of them was Josef Jancar and the other Zbynek Sedivy. Many years passed. After the Velvet Revolution came the fall of communism and those two friends finally had the freedom to live their dreams. Mr. Sedivy, as an engineer, was involved in the transition of the Czech aeronautic industry towards a Western oriented business. Mr. Jancar, as a physical chemist, became a postdoctoral scholar at the University of Connecticut where he focused on material science in medicine.

After many years, the two friends were reacquainted. They didn't talk about the sandbox anymore but rather about their areas of expertise. And in 1995, they founded ADM (Advanced Dental Materials) to explore ways of adapting strong and dependable aeronautic materials and pioneering their use in dentistry. It took years of research to perfect and in 2004 they were finally satisfied with the result. They believed they had a superior product that would bring dentists new opportunities to treat their patients more effectively. To properly serve the US market, they founded Dentapreg® America Inc. in 2010.

Today, ADM continues to grow with customers worldwide. Europe, Israel, South Africa, and Australia - dentists, lab technicians and their patients all across the globe now enjoy the advantages of Dentapreg® and Fibrafill® products.

Our projects


r.č.: CZ.01.1.02/0.0/0.0/17_206/0014967
Project for the protection of industrial property rights - ADM, a.s.
Application for invention and grant of industrial property protection rights

Innovation 2

r.č.: CZ.01.1.02/0.0/0.0/17_170/0015065
Introduction of production of an expanded portfolio of unique biomimetic composite materials and their distribution through a new distribution channel and corresponding process and organisational innovation
The project aims to introduce the production of 2 unique biomimetic composite materials and related process, organisational and marketing innovation.

Application 1 CZ.01.1.02/0.0/0.0/15_018/0004714
Introduction of a semi-process for the production of a new biomimetic material with 3D printing capability
The subject of the project is a semi-operation enabling the production of small batches of new generation biomimetic composites using a standardised production process.

Application 2

r.č.: CZ.01.1.02/0.0/0.0/17_175/0015454
Expansion of the product portfolio of Dentapreg, Fibrafill, Reterock and Fibralab and introduction of a semi-process for the production of short-reinforced and reinforced composites for CAD/CAM
The object of the project is, through industrial research and experimental development, to acquire new knowledge and skills to enable the routine production of a new generation of unique biomimetic composite materials and several support devices and jigs for their application. Based on the proposed project, the company will expand its product portfolio and introduce a new semi-operation.


r.č. CZ.01.01.01/0.1/22_002/0000642

Development of a new generation of bioactive and structural composites for restorative dentistry and implantology and technologies for scalable small-volume production of these materials

Research and development of a follow-up generation of bio-mimetic restorative composite materials that will combine the excellent mechanical properties of the existing Fibrafill range with bio-active functions such as antibacterial and remineralisation

Proof of concept

r.č.: CZ.01.1.02/0.0/0.0/19_265/0021476
Transfer of knowledge in the field of optimization of materials for 3D printing in dentistry.

This project is submitted with the aim of transferring the know-how of a research organisation in the field of:

  • 3D printable materials based on photopolymers for dental applications
  • their physicochemical properties
  • their processability
  • modification of hybrid composites for SLA 3D printing technology