Bone Reduction Guides

Reduction planes set by the space the final hybrid needs, planned with the dentist and stacked with the placement guide so the implant guide seats on the new bone level exactly as planned.

In a full-arch case, how much bone you take is a prosthetic decision made before surgery — reduce too little and the hybrid has no room for its material and transition; reduce too much and you have removed bone you did not need to.

Jahn De Khudikine, Founder · Universal Dental Lab
Jahn De Khudikine Founder · Universal Dental Lab

Why send it here

The reduction level is a prosthetic decision. We make it with you before the bur touches bone.

A practice's schedule lives or dies by the lab — I've watched one late case push back a whole day of chair time.

So I still know the cases moving through this lab, and I answer for how each one is made. Send a case here and it doesn't drop into a queue — it lands with me and one technician who carries it start to finish.

Start a case
You approve first
Nothing prints until you sign off the reduction level Adjustments here are a conversation, not a remake
Restoratively driven
The plane set by the space the final hybrid needs Not a guess at the chair after the bone is already gone
Your technician
One planner holds your case Reach them directly — no call-center queue
Free scanner
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Universal Dental Lab Case sheet

What to send with the case

  • CBCT scan (DICOM)
  • Intraoral scan (STL)
  • Planned prosthesis or restorative goal
  • Implant system and platform
  • Immediate-load or staged
  • Existing denture or wax-up, if relevant

The reduction plane is only as good as the CBCT it is planned from and the clarity of the restorative goal.

How We Work With You

Reduce for the Prosthesis, Not to a Guess

A bone reduction guide turns the reduction decision into a referenced plane instead of freehand judgment under a flap. You send the CBCT and the restorative goal; we set the level to the space the final hybrid needs and design a guide that stacks cleanly with the surgical guide.

Built to stack
A reduction guide that does not agree with the surgical guide is a problem waiting to happen. We index both to the same references, so once the ridge is reduced, the placement guide seats on the new bone level and the implants land where the plan put them.
Where these belong
Bone reduction guides are a full-arch and All-on-X tool — for cases where a fixed hybrid requires converting a ridge to a flat platform with adequate restorative height. They are not a single-unit solution, and we will say so if a case does not call for one.
What the plan depends on
A clean scan and a defined prosthesis let us set the level with confidence; a vague restorative target is where we come back with questions before, not after, we design.
Full-arch reduction guide and surgical placement guide staged together on the model

The Guide Stack

Built to Stack With the Placement Guide

We plan the reduction level against the CBCT and the planned prosthesis together, then define a flat, indexed surface the bur can follow. The point is a predictable vertical height across the whole arch, so everything restorative that follows fits the way it was designed to.

The reduction guide and the placement guide are indexed to the same references, so after the ridge is reduced the implant guide seats on the new bone level and the implants land where the plan put them.

  • A referenced, repeatable plane: A flat, indexed reduction surface gives predictable prosthetic height across the arch instead of an uneven ridge that complicates the fit of everything after it.

  • One coordinate system: Reduction and placement are one sequence on one set of references, not two guides that have to be reconciled at the chair.

Learn more
Printed reduction guide with fixation pin channels, inspected against the plan on screen

Materials & Fabrication

Printed in Biocompatible Resin, Fixated for the Arch

Reduction guides are printed in biocompatible resin and designed with the fixation the case needs to stay stable while the ridge is reduced. Because the guide sits on bone during a phase where the reference teeth may be gone, its seating and fixation are planned as carefully as the reduction plane itself.

Every guide is checked against the plan and shipped as part of the sequence it belongs to, so the reduction guide, the placement guide, and any prosthetic components arrive as one coordinated set.

  • Reduction driven by restorative space: The plane is set by how much vertical height the final hybrid needs, so you are not fighting for prosthetic room after the bone is already gone.

  • Fixation planned for the phase: The guide has to hold on bone once the reference teeth are gone — the fixation features are designed for that, not added as an afterthought.

Learn more

Part of one full-arch sequence

The reduction guide is one step in a staged case. It is set from the CBCT plan, stacks with the surgical guide, and makes room for the full-arch hybrid the case is built toward. For the case seen end to end, it sits inside full arch case planning.

The Process

How a Reduction Guide Is Planned

From full-arch records to a guide stack. Nothing prints until you approve the reduction level.

  1. Send the full-arch records

    Practice

    A CBCT in DICOM, an intraoral scan, and the planned prosthesis or the restorative goal. Tell us the implant system and whether the reduction serves an immediate-load hybrid so we plan the reduction level against restorative space, not an arbitrary line.

  2. We set the reduction plane

    Lab

    The reduction level is dictated by how much vertical room the final prosthesis needs for its material and the transition zone. We plan it against the CBCT and the restoration together, then define a flat, referenced plane the bur can follow.

  3. Stacked with the placement guide

    Lab

    The reduction guide is designed to index to the same references as the surgical guide, so after reduction the placement guide seats on the new bone level exactly as planned. The two are one sequence on one coordinate system.

  4. You approve the plan

    Practice

    You review the reduction level, the fixation approach, and how the guide stack sequences before anything prints. Adjustments here are a conversation, not a remake.

  5. Print, finish, and ship

    Lab

    We print in biocompatible resin, add the fixation features the case needs, and inspect the guide against the plan before it ships with the rest of the stack.

What a planned reduction gives you

  • Reduction driven by restorative space

    The plane is set by how much vertical height the final hybrid needs — not a guess at the chair — so you are not fighting for prosthetic room after the bone is already gone.

  • Guides that stack in sequence

    The reduction guide and the placement guide share references, so the implant guide seats on the reduced bone exactly where the plan put it.

  • A referenced, repeatable plane

    A flat, indexed reduction surface gives predictable prosthetic height across the arch instead of an uneven ridge that complicates the fit of everything after it.

Start a case

Send one case. Keep the scanner.

Open a partner account and your first case moves with a shade record and our remake guarantee — if a unit does not seat, we redo it at no charge.

  • Free 3Shape TRIOS 6 scanner for active partners
  • Under-2% remake rate — remakes at no charge
  • One named technician you reach directly — no call center

Prefer to talk? +1 747-268-0808

No call center — you hear back from the lab, not a bot.

Bone Reduction FAQ

Bone Reduction Guides — Questions Dentists Ask

The prosthetic plan sets it. Vertical room for the hybrid, transition line, and occlusal scheme define how much bone must come off; the reduction guide encodes that plane on the CBCT. Surgery executes the plan rather than discovering prosthetic space after fixtures are placed.

They are designed as a stack: fixation and reduction first, then implant placement on the reduced ridge with shared landmarks so the placement guide still seats where planning put it. That coordination is the point of designing both from the same merged CBCT and scan — not improvising reduction and hoping the implant guide still fits.

Surgical guide design

This is the surgical-support design service — planning the reduction plane and guide geometry with you from CBCT and restorative goals. The removable implant bars product page covers ordering the printed reduction guide as part of fabrication. Same clinical intent, different entry point: design here, manufacture there when you are ready to print.

Bone reduction guides (product)

It ties reduction, implant positions, and provisional conversion into one timeline — the reduction level must leave room for the conversion prosthesis you intend to seat. Tell us if same-day conversion is planned so fixation, reduction, and placement guides sequence with the provisional design, not against it.

Full arch case planning

Send the intended definitive prosthesis type — acrylic on titanium, monolithic zirconia hybrid, bar overdenture — and any duplicate denture or wax-up that shows tooth position and occlusal vertical. Implant system and platform still matter for what follows reduction. Without that prosthetic target, the reduction plane is a guess.

How to send a file

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