What Exactly Is Lost-Wax Casting?

Lost-wax casting (also called investment casting or cire perdue) is a process that creates a metal object from an original wax model. The steps are:

1. A precise wax model is created.
2. The wax model is surrounded by a heat-resistant mold material.
3. The mold is heated so the wax melts and completely drains away (the wax is “lost”).
4. Molten metal is poured into the empty cavity.
5. Once cooled, the mold is broken and the metal piece is revealed for final hand finishing.

Because the metal takes the exact shape of the vanished wax model, this technique can reproduce extremely fine details that other methods struggle to achieve.

How Kensho Applies Lost-Wax Casting

Here is the real workflow inside our workshop:

Step 1: From 3D File to Wax Model After the 3D design is finalized from the customer’s dental impression, we create an accurate wax model. This model captures every detail — wall thickness, engravings, tribal or gothic patterns, stone seats, and the exact contour that follows the gum line.

Step 2: Building the Heat-Resistant Mold The wax model is invested in a special refractory material. It is then heated to a high temperature so the wax fully melts and flows out, leaving a perfect hollow cavity.

Step 3: Casting the Metal Molten metal (925 silver or 10K–18K gold) is poured into the mold under controlled conditions. This allows the metal to fill even the smallest and most intricate areas.

Step 4: Breaking the Mold and Hand Finishing After cooling, the mold is carefully broken away. The rough casting is then filed, adjusted, polished, and stone-set entirely by hand.

Why Lost-Wax Casting Matters for Grillz

Grillz are not regular jewelry. They must:

• Fit the teeth with high precision
• Withstand daily forces from speaking, smiling, and light chewing
• Hold sharp details even at a very small scale
• Maintain structural integrity over time

Lost-wax casting meets these demands better than most alternative methods because it offers:

• Superior detail reproduction (especially important for complex patterns and lettering)
• Dense and uniform metal structure (fewer internal voids that can weaken the piece)
• Better control over wall thickness (strong yet comfortable to wear)
• High repeatability (the same quality can be reproduced years later from the original 3D data)

The Difference It Makes

Some workshops use simpler casting methods or fabricate pieces from sheet metal. While faster or cheaper, these approaches often sacrifice fine detail and internal consistency — two factors that directly affect how a grillz feels and performs after months of real use.

Lost-wax casting requires more steps and stricter control, but it delivers a more reliable and refined result. That is why Kensho continues to use it for every custom piece.

Final Thought

Lost-wax casting is not a marketing term for us. It is the technical foundation that allows a grillz to move from “looks good in photos” to “feels right and lasts when actually worn.”

Every Kensho grillz is built on this process. That consistency is what gives our clients confidence in both the immediate fit and the long-term quality.

Want to see how this process applies to your own teeth? Book a free 3D consultation or request a home impression kit. Instagram: @kenshojewelry.vn WhatsApp: +84 374 452 085

Kensho Jewelry Lost-wax casting. Precision from the start. No shortcuts.