Scheftner chrome-cobalt disc 98 mm for CAD/CAM milling
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Brand: Scheftner CoCrMo alloy 98 mm format CAD/CAM Type 4 Nickel-free
Scheftner CoCrMo cobalt-chromium disc – dental CAD/CAM milling
The Scheftner CoCrMo cobalt-chromium disc is a milling disc for dental laboratories equipped with CAD/CAM, intended for the fabrication of crowns, bridges, frameworks, bars, attachments, telescopic components and implant-supported superstructures.
Its cobalt-chromium-molybdenum alloy provides a rigid, stable metal base suited to restorations requiring mechanical strength, milling accuracy and professional finishing.
Alloy CoCrMo
Format 98.3 mm with shoulder
Class Type 4 according to DIN EN ISO 22674
Milling Dry or wet milling
A Scheftner CoCr disc for digital dental laboratories
The Scheftner CoCr disc meets the needs of laboratories looking for a reliable, consistent metal framework material compatible with milled fixed restorations.
Its cobalt, chromium and molybdenum-based composition provides a good balance between mechanical strength, milling accuracy, dimensional stability and finishing quality.
It integrates into a dental CAD/CAM workflow for cases requiring a robust metal base, whether for fixed prosthodontics, implant-supported structures or metal-ceramic restorations.
Benefits of the Scheftner cobalt-chromium disc
- Type 4 CoCrMo alloy according to DIN EN ISO 22674.
- Very good mechanical strength for frameworks, bridges, bars and superstructures.
- Good metal-ceramic bond when an appropriate preparation protocol is followed.
- Biocompatible for professional dental restorations.
- Laser-weldable according to the technical data sheet.
- Nickel-free, beryllium-free, lead-free and cadmium-free.
- Available in several thicknesses according to production requirements.
Dental applications
- Milled metal crowns.
- Cobalt-chromium bridges.
- CoCr frameworks for fixed restorations.
- Frameworks, telescopic components and attachments.
- Implant bars.
- Implant-supported superstructures.
- Metal-ceramic restorations according to protocol.
Why choose a CoCrMo alloy in the laboratory?
The cobalt-chromium-molybdenum alloy is valued for its rigidity, mechanical strength and stability in milled metal work.
It represents a reliable solution for laboratories wishing to produce consistent metal frameworks within a digital workflow.
Compatibility with open CAD/CAM systems
The 98 mm format enables integration into many open dental CAD/CAM systems, provided that the exact holder type used by your machine is verified.
The presence of a shoulder, the disc thickness and the milling protocol must always be checked before starting the milling cycle.
Laboratory tip before CoCr milling
Before starting milling, check the exact disc format, the selected thickness, the presence or absence of a shoulder and compatibility with your milling machine’s disc holder.
This verification helps avoid mounting errors and secures the milling of metal structures.
To preserve the tools, use burs suitable for cobalt-chromium and follow the parameters recommended for your machine.
Recommended instructions for cobalt-chromium milling
- Check compatibility between the disc, disc holder and dental milling machine.
- Install the disc according to the machine manufacturer’s protocol.
- Apply milling parameters adapted to CoCrMo cobalt-chromium.
- Separate the structures after milling, then proceed with deburring and adjustment.
- Carry out sandblasting, finishing, polishing or surface preparation according to the prosthetic indication.
- Check the surface condition and connection areas before ceramic veneering or final finishing.
Main indications in fixed prosthodontics
- Single metal or metal-ceramic crowns.
- Milled cobalt-chromium bridges.
- Frameworks intended for ceramic veneering.
- Telescopic components and frameworks.
- Restorations requiring rigidity and fitting accuracy.
Implant-supported structures and technical work
- Implant-supported superstructures.
- Bars and attachments.
- Structures to be polished or sandblasted.
- CAD/CAM work requiring a rigid metal base.
- Restorations requiring stability, precision and strength.
Use comparison: cobalt-chromium disc or dental titanium disc?
| Criterion | Scheftner cobalt-chromium | Dental titanium |
|---|---|---|
| Rigidity | Very good rigidity for frameworks, bridges, bars and superstructures. | Good strength with a lighter structure. |
| Indications | Crowns, bridges, telescopic components, bars, attachments and superstructures. | Specific work, lightweight structures or implant indications according to protocol. |
| Finishing | Polishing, sandblasting and preparation possible before ceramic veneering. | Specific finishing with tools adapted to titanium. |
| Laboratory choice | Ideal for a robust, versatile and stable metal framework. | Useful when light weight is a priority. |
Available formats depending on version
The Scheftner cobalt-chromium disc is available in versions with or without a shoulder, depending on the machine and disc holder used.
| Format | Detail |
|---|---|
| Version with shoulder | 98.3 mm depending on available references |
| Thicknesses | From 8 mm to 30 mm depending on available version |
| Use | Open CAD/CAM systems compatible with the selected format |
Technical specifications of the Scheftner cobalt-chromium disc
| Product | Cobalt-chromium disc for dental CAM milling |
|---|---|
| Brand | Scheftner |
| Alloy | CoCrMo — cobalt 65%, chromium 28%, molybdenum 5%, other elements < 1% |
| Class | Type 4 according to DIN EN ISO 22674 |
| Diameter | 98.3 mm with shoulder or 99.5 mm without shoulder depending on version |
| Thicknesses | From 8 mm to 30 mm depending on available version |
| Hardness | 288 HV10 |
| Elastic modulus | 206 GPa |
| Tensile strength | 597 MPa |
| Yield strength | 413 MPa |
| Elongation | 12% |
| Density | 8.3 g/cm³ |
| Properties | Biocompatible, laser-weldable, dry or wet milling |
| Excluded elements | Nickel-free, beryllium-free, lead-free and cadmium-free |
| Intended use | CAD/CAM dental laboratory |
Preparation before ceramic veneering
For metal-ceramic restorations, the milled framework must be carefully prepared in order to obtain a clean, regular surface compatible with the veneering protocol.
Appropriate sandblasting, thorough cleaning and compliance with the recommendations of the ceramic system used are essential to secure the metal-ceramic bond.
Finishing CoCr structures
After milling, the connector points must be removed using instruments suitable for cobalt-chromium.
Finishing must preserve margins, connectors and fit, while achieving a surface condition consistent with the indication: polishing, sandblasting, ceramic veneering or prosthetic assembly.
Best practices for CoCr milling
- Check the disc thickness before nesting.
- Check the diameter and the presence or absence of a shoulder.
- Use burs suitable for CoCrMo.
- Follow the machine milling parameters.
- Avoid undersized connectors on bridges and bars.
- Clean the structure before finishing or ceramic veneering.
Common mistakes to avoid
- Mounting the wrong format: check 98.3 mm with shoulder or 99.5 mm without shoulder.
- Using worn burs: cobalt-chromium places high demands on tools.
- Neglecting the surface condition: irregular finishing can compromise the final result.
- Forgetting machine checks: parameters must remain adapted to the CoCrMo material.
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Delivery
Delivery: 1 Scheftner cobalt-chromium disc for CAM milling, in the thickness selected according to the chosen option.
Upon receipt, check the diameter, thickness, presence or absence of a shoulder and condition of the packaging before integrating it into your CAD/CAM production workflow.
FAQ – Scheftner cobalt-chromium disc for CAD/CAM milling
Is the Scheftner cobalt-chromium disc compatible with 98 mm systems?
Yes, the disc is available in a version compatible with open 98 mm systems.
However, you must check the exact holder of your milling machine, particularly the presence or absence of a shoulder, to avoid any mounting error.
Can this CoCr disc be used for metal-ceramic restorations?
Yes, this cobalt-chromium disc can serve as a framework material for metal-ceramic restorations.
The surface preparation protocol must be followed and a ceramic compatible with CoCr alloys must be used.
Can the Scheftner disc be milled dry and wet?
Yes, the technical data sheet indicates compatibility with both dry milling and wet milling.
The choice depends on your milling machine, the burs used and the laboratory’s usual protocol.
Which restorations can be fabricated with this cobalt-chromium disc?
This disc is suitable for crowns, bridges, frameworks, telescopic components, bars, attachments and certain implant-supported superstructures.
Its rigidity makes it a versatile solution for milled metal restorations in the dental laboratory.
Why choose a CoCrMo alloy in a dental laboratory?
CoCrMo alloy is valued for its mechanical strength, stability and good finishing properties.
It enables the production of robust metal structures within a dental CAD/CAM workflow.
A reliable Scheftner CoCrMo disc for CAD/CAM metal frameworks
The Scheftner CoCrMo cobalt-chromium disc is a professional solution for laboratories wishing to produce precise, stable and resistant metal frameworks within a digital workflow.
With its Type 4 CoCrMo alloy, broad indications, compatibility with metal-ceramic restorations and formats suited to open CAD/CAM systems, it meets the needs of dental technicians for crowns, bridges, bars, telescopic components, frameworks and superstructures.
For laboratories looking for a robust and versatile metal base, the Scheftner cobalt-chromium disc is a technically consistent choice for everyday CAD/CAM production.
Scheftner chrome-cobalt disc 98 mm for CAD/CAM milling