A “medical part” is not a single material requirement. A restoration used in the mouth, an implant that remains in the body and a fixture on the production line have different functions. Starting material selection from contact conditions and expected performance, rather than from the part’s name, gives a more accurate comparison.
1. Dental frameworks: application-specific CoCr
Crown and bridge frameworks and removable partial denture frameworks are examples where suitable dental CoCr products can be evaluated. The critical questions are the restoration type, required rigidity/flexibility, final surface, ceramic veneering and the manufacturer’s instructions for use. Do not substitute an industrial CoCr powder for a dental product just because its composition is similar.
2. Patient-specific implants: a specified titanium grade
For titanium and alloys such as Ti6Al4V ELI, the decision should be based on the device manufacturer’s specification. Pure titanium, Ti6Al4V Grade 5 and ELI/Grade 23 are not the same purchase item. The chemical grade, machine process, surface and mechanical requirements must be written down together. Read about titanium and the ELI distinction.
3. Instrument and equipment development: the role of 316L
316L is a stainless steel that can be evaluated for corrosion resistance and manufacturability. Example preliminary evaluation areas are development work for surgical instrument bodies, medical equipment components and production aids. Carpenter Additive’s 316L datasheet lists the medical sector among its application areas; this does not mean that every 316L powder is an implant material. 316L manufacturer datasheet.
For example, when a candidate material is evaluated for an instrument body, cleanability, surface finishing and the expected reprocessing cycles are taken into account. A cutting tip or high-wear zone may not have the same requirements. Such an example is not a use recommendation; it is a scenario showing how a design team can narrow down its material screening.
4. Auxiliary parts with no patient contact
A dental laboratory’s production fixture or a medical device manufacturer’s assembly jig requires a different evaluation from an implant. Rigidity, corrosion, temperature, repeated use and dimensional stability may be decisive. A candidate such as 316L performing well here does not show that the same material can be used inside the body. Whether there is direct or indirect patient contact must be clearly defined.
Prepare your application card with five questions
- Is the part a restoration, implant, instrument, equipment part or fixture?
- Is there direct or indirect contact with the body; if so, what is the nature and duration of the contact?
- Which loads, surface and dimensional requirements must be met?
- Which machine, powder specification and post-processing chain will be used?
- Who will approve material and process changes, and what evidence will be required?
These answers also explain why two customers working with the same alloy request different particle sizes, documents or test plans. Plan sample trials and series production acceptance as separate stages; do not derive the scope of use from a catalogue label alone.
The FDA’s application overview separates device groups ranging from implants to instruments and external prostheses. This source provides international technical context; it is not a document demonstrating regulatory conformity of a product in Türkiye.
See the material–application comparison or request a quote by describing your application. At the request stage, share anonymous technical requirements instead of patient images or personal health data.