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The digitization of conventional workflows (CAD design and CAM manufacturing) results in high efficiency and design freedom due to.
Lower material consumption results in significantly lower costs compared to other manufacturing technologies such as milling. This saves resources and money.
The excellent polishing properties are comparable to those of castings. There is the option of high gloss polishing for minimal rework in the lab.
The required mechanical properties of dental metal 3D materials play an important role in material selection. The dental restoration material must meet the appropriate requirements in terms of strength, hardness, plasticity and elasticity in order to be used safely and reliably in the field of dental restoration.
Ultimate Tensile Strength (MPa), XY/Z
Yield Strength (MPa), XY/Z
Elongation at break (%), XY/Z
1075 – 1089
972 – 1006
1220 – 1315
Titanium 6AL4V and 6AL4V ELI (Gr. 5 and Gr. 23), alloys made of 6% Aluminum and 4% Vanadium, are the most common types of titanium used in medicine. Because of its harmonizing factor with the human body, these titanium alloys are popularly used in medical procedures, as well as in body piercings.
Titanium is characterized by high biological compatibility and has therefore become the material of choice for implants. The mechanical properties of CoCr (especially in terms of stiffness, yield strength) are advantageous for the manufacture of dental components.
Titanium has the higher yield strength compared to CoCr, so retention loss is less likely than CoCr alloys, especially for clasps. However, the modulus of elasticity is much lower than CoCr alloys, so the stiffness of a titanium alloy framework is lower than when using a CoCr alloy. This must be taken into account, especially in the design of frameworks.
When dental prostheses are used in the oral cavity for a long period of time, ion dissolution is inevitable. Therefore, dental metal materials must have a certain corrosion resistance to minimize the precipitation of metal ions and reduce safety and health risks. In terms of corrosion resistance, both materials are optimal for use in dental applications. The corrosion resistance level of both alloys almost reaches the level of precious metals.
The Ti6A17Nb alloy may be beneficial for patients with allergies or intolerances to one or more components of the CoCr alloy.
The dental 3d metal printer 2CREATE is the perfect solution for dental printing of CoCr and titanium.
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Source: “Titanium alloy vs. CoCr alloy in partial denture prosthetics”, Joannis Katsoulis, Jens Fischer, Sandra Huber, Sacha Balmer, Regina Mericske-Stern, Bern & Zurich, 2008.