Electro-Finishing Solutions for Dental Applications
OTEC GmbH
Electro Finishing Solutions for RPDs, superstructures, orthodontics, crowns, bridges & orthodontic parts
With OTEC’s innovative electro-finishing solutions, there are no limits to achieving flawless dental surfaces. Regardless of the material—be it cobalt-chrome, titanium, or precious alloys—OTEC technology enables customized surface finishing for every dental application. From RPDs and crowns to bridges, superstructures, and orthodontic parts, our advanced systems deliver exceptional results in smoothing, polishing, rounding, and deburring. The precise combination of process media and machine technology ensures superior surface quality, durability, and esthetics for every restoration.
Electro Finishing for Perfect Surfaces
Achieving smooth, homogeneous, and flawless surfaces is essential in dental technology — and OTEC Electro Finishing systems make it possible with unmatched precision. OTEC machines are specifically designed to smooth, polish, and deburr even the most complex and hard-to-reach areas of dental components. Thanks to its advanced electro finishing process, surfaces are refined without micro-scratches or waviness, ensuring perfect contours and maintaining exact shape tolerances. This gentle yet highly effective process delivers consistently reproducible results that meet the highest standards of dental aesthetics and functionality.
Beyond superior surface quality, OTEC systems offer a highly economical solution. The process drastically reduces both labour effort and overall production costs, providing an efficient, reliable, and precise finishing method for modern dental manufacturing.
Advantages of the Electro-Finishing Technology
- Delicate components
- Low mechanical stress on workpieces
- No bending or breakage
- Maintains dimensional stability of workpiece
- Lightweight and delicate holder design possible due to the low forces acting in this process
- Minimal edge abrasion
- Sensitive and soft materials
- No micro-scratches
- Improved corrosion resistance thanks to electro finishing
- No impact on microstructure
- Clean, neat surfaces
- Complex geometries
- It reaches deeper areas of the workpiece, even with complex geometries
- Minimal media jamming thanks to tiny spherical finishing particles and/or pure liquid
- It achieves roughness values as low as Ra 0.01 μm
OTEC Electro Finishing Systems
Features
- Safe, eco-friendly process – no need for polishing or acid baths
- All-in-one system, suitable for processing Cobalt-Chrome and Titanium
- Stand-alone unit for automated surface finishing; Plug-and-Play system
- 70% less manual effort for technicians
- Ideal for smaller dental and orthodontic labs
Dental Applications
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- Crowns and bridges, supra structures
- RPDs and cast partial dentures
- Orthodontic components such as GNEs and molar bands
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Features
- Polishing of Cobalt-Chrome in larger quantities
- Processing of Titanium with the EF-Smart T+
- No manual work such as buffing, pre-polishing and electro finishing
- Process time reduced by 70%
- Uniform polishing even in hard-to-reach areas
- Reproducible, stable and sustainable processes
- Uncontaminated working conditions thanks to acid-free processes
Dental Indications | Processing Times & Capacities*
Key Benefits by Application:
- RPD Frameworks: Retains precise geometry with uniform smoothing and polishing, even in internal clamps and tiny corners.
- Crowns & Bridges: Achieves perfect smoothness (even in fissures) by removing milling grooves without damaging the dentin.
- Orthodontics: Provides fast, precise, and gentle smoothing for delicate structures, ensuring repeatable perfect results without damage.
- Supra structures: Enables gentle, selective removal of milling grooves, protecting the fit-relevant areas and minimizing material removal.
- Pre-veneered surfaces: Allows for targeted polishing of only metallic surfaces on already veneered prostheses, leaving plastic areas untouched.
In short, the process delivers uncompromised precision, perfect surface finish, and protection of fit across all dental restorations.
*Based on the manufacturer’s technical information.
RPD Frameworks
15-20 min
3 workpieces/process
Crowns & Bridges
15-20 min
12 workpieces/process
Orthodontics
15-20 min
4 parts/process
Super structures
5-10 min
3 workpieces/process
Pre-Veneered surfaces
15-20 min
1 workpieces/process
Mass Finishing for Bite Splints, Aligners, Braces & Dental Plastics
The advanced surface finishing technology combines high-performance machinery with customized media and parameters to clean, smooth, and polish multiple workpieces simultaneously with exceptional precision. The process efficiently removes milling grooves and 3D printing structures, delivering flawlessly polished surfaces. By automating these complex finishing tasks, technicians save valuable time and eliminate the need for labor-intensive manual work.
MAXI-DENTAL
Machining with no manual rework
Targeted polishing of hard-to-reach areas
Reproducible and stable processes
Ergonomic design and easy-to-handle machines
Compact design as table-top machine
Sustainable processes through wastewater filtration
Quick return on investment thanks to low process costs and automation of manual processes
Sustainable production by reducing the workload for employees and substituting processes that pose health risks
The OTEC Maxi-Dental is a highly flexible dental polishing and surface finishing machine, designed for maximum versatility with quick and easy container changes. This compact, table-top unit delivers exceptional performance at a low acquisition cost and operates on a convenient Plug & Play system, making it ideal for efficient and user-friendly dental applications.
Advantages of the OTEC Maxi-Dental
- Maximum flexibility – several processes with just one machine
- Switch quickly between the various processes thanks to tool-free container changes
- Plug & Play principle
- Compact table-top machine
- Cost-effective even when processing only a few workpieces per day
Flawless Surface Finish for Patient Comfort
- Smoothing and polishing bite splints – a two-step process removes structures in the surface without a trace and rounds the edges
- Cleaning dentures – a magnetic needle cleaning process cleans all residues even in difficult areas and re-polishes the surface
- Cost-effective solution, recommended for laboratories processing up to 15 workpieces/day
