At Cosmodent we mill bars for All-on-X and other high-load cases in Grade 5 titanium. The choice is technical, not decorative: the bar has to sit, stay and take daily function without becoming the weak point of the restoration.
What Grade 5 titanium is
Grade 5 titanium, Ti-6Al-4V, is an alloy of about 90% titanium, 6% aluminium and 4% vanadium. The mix is used where strength, corrosion resistance and low weight have to hold together, including medical implants. Those same properties make it suitable for dental bars and frameworks that take high mechanical load.
It is stronger than commercially pure titanium and still light. That strength-to-weight ratio matters in full-arch work, where the bar has to remain stable under function without adding unnecessary bulk.
Biocompatibility and corrosion
Material that stays in the mouth has to be tolerated by tissue and remain stable in saliva, acid and temperature change. Grade 5 titanium is widely used because it is biocompatible and corrosion-resistant. For All-on-X, that stability is part of why the framework can be planned as a long-term structure, not a temporary one.
Machining and fit
We mill each bar to the case. Grade 5 machines cleanly enough for accurate geometry and a passive relationship to the underlying implants. The aim is a bar that seats, supports the prosthesis and does not ask the clinic to grind the framework into place.
Load over time
Full-arch prostheses and multi-unit zirconia bridges put fatigue on the metal. Grade 5 is used because it holds under that load. Longevity still depends on the plan, the records and the finish. The alloy does not replace those steps.
In the laboratory
Every part of an All-on-X case has to earn its place: design, interfaces, material and the hand that finishes the work. Grade 5 titanium is how we make the bar. If you want to talk through a case, bring the records. We will tell you whether this is the right structure.