About

Two engineers who care whether the geometry is right.

Cutaway3D is Jon and Krishna — a two-person engineering studio making one thing well: dimensionally honest, interactive cutaways of dental implant connections. Not an agency churning generic 3D — the whole premise is that a prosthodontist can drag the section plane through the joint and find nothing wrong.

Who we are

One of us lives in mechanism design — thread profiles, seat angles, tolerance stacks, and what the published IFU actually constrains. The other lives in real-time 3D — the rendering, sectioning, and interaction that let the model run in a browser on whatever tablet a rep already carries. Every cutaway passes through both of us: the geometry has to survive the engineer, and the viewer has to survive the chairside conversation.

Why this exists

The single most important part of a two-piece implant — the abutment–implant junction — is the one part a catalog photo can never show. Reps end up describing the conical seal, the anti-rotation index, and the platform switch in words, to dentists who evaluate exactly those features for a living. A cutaway replaces the description with the thing itself: seat it, unseat it, section it anywhere, and the mechanics stop being debatable. That gap — between how important the connection is and how badly it's communicated — is the entire reason for this work.

What the work is grounded in

Every model is built from published dimensional data and referenced against the standards the industry already works to — ISO 14801 for connection fatigue geometry, ASTM F67 and F136 for the titanium grades, and the clinical literature for the reasoning behind the shapes. Where a manufacturer's exact internal geometry is proprietary, it's modeled to published tolerances and every assumption is stated openly. The method is written up in full on the methodology page, and demonstrated in the teardown writing.

The line that doesn't move

These are chairside education tools. They support — never replace — a manufacturer's regulated IFU, and they make no clinical claims. A named system's exact geometry is only ever reproduced from that manufacturer's own CAD or IFU, under agreement. Everything shown publicly today is a clearly-labeled archetype.