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About us

The company

NUXEN SRL is located in Buenos Aires, Argentina. It has been manufacturing and exporting theDeflex injected dentures system to a broad network of distributors in America, Europe, Asia, and Africa since 2000.
Beyond its strong profile as a wholesaler manufacturer and exporter, NUXEN SRL also imports dental products to be distributed in the local market.
Founded by Ruben Narinsky —a technician with over 50 years of experience—, the company was created with the aim of offering a complete system of injected removable dentures.
From the beginning, the ideals of quality and innovation have accompanied this project, which has been developed and adapted to market needs, always offering the highest quality standards.

Deflex in context

Before Deflex, dentures known as flexible in the market were becoming unpopular and seemed to be doomed to extinction, since the materials used were too flexible —that is, clinically unfavorable— and very porous —thus the short lifetime of the denture in the mouth.

It was then that our founder renewed the concept of “flexible denture” developing a semi-rigid thermoplastic polymer (our flagship material, Classic SR). He claimed that flexibility had to be kept to a minimum necessary, recalling that a partial denture had to respect the functional units of support, fixation, and stability.

During the first years of Deflex, this led to a real revolution in what we call injected dentures, allowing an evolutionary leap in the field of removable dental prostheses, which gained in aesthetics and functionality.

This paradigm shift from the first too flexible dentures spread rapidly at an international level, and since then dentistry has been more and more open to using thermo-polymers to manufacture removable dentures.


Deflex currently offers three product lines:

  1. Injectable Deflex line: 7 types of polymers packed in cartridges, and an injection machine.
  2. Injectable Bulkflex line (by Deflex): 4 types of thermoplastic bulk materials.
  3. CAD/CAM line: Zirconia discs and blocks, PMMA, PEEK, and wax.