Cantilever Bridges

A fixed option dentists reach for when the space has an abutment on one side only — the pontic extended from a single retainer, designed to keep leverage off the abutment.

Not every edentulous space has a tooth on both sides. A cantilever extends the pontic from one retainer — a clean, conservative fixed restoration in the right site, and a case where the biomechanics are the whole story.

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

Why send it here

Your cantilever case, biomechanics checked before it's made.

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
Single abutment
A fixed pontic where the space has a sound tooth on one side only Zirconia or PFM, chosen for the load and the zone
Leverage controlled
Pontic relieved from heavy centric and excursive contact at the design stage Occlusion verified on the articulated model before it ships
Your technician
One person holds your case Reach them directly — no call-center queue
Free scanner
3Shape TRIOS 6 for partners Go fully digital at no cost

Approach Comparison

Cantilever, Maryland, or Implant?

Three ways to restore a single-tooth space without a conventional two-abutment bridge, next to the conventional span itself. We support all four.

Cantilever bridge, pontic extended from a single abutment
Cantilever Bridges You are here
Maryland bridge with a bonded retainer wing
Maryland Bridges
Conventional two-abutment zirconia bridge on the model
Zirconia Bridges
Bridge restored on implants, no load on natural teeth
Implant-Supported Bridges
Retention One prepared abutment Bonded retainer wing Two prepared abutments Bridge on implants
Esthetics Zirconia or PFM, per zone Single anterior tooth Full-contour or layered zirconia Definitive, natural emergence
Best for One-sided abutment, light-load single tooth Conservative or interim single anterior Two-sided space, load distributed No load on natural teeth

Cantilever success depends heavily on case selection, abutment support, and occlusal load on the pontic. Confirm case suitability and pontic design with the lab before you prep.

Design
Single-abutment pontic
Material
Zirconia or PFM
Best sites
Anterior & premolar, light load
Turnaround
Quoted per case at intake
A cantilever bridge, pontic extended from a single abutment

Overview

A Fixed Bridge From a Single Abutment

Not every edentulous space has a tooth on both sides. A cantilever bridge replaces the missing tooth by extending the pontic from a retainer on one side only — a fixed solution where a conventional two-abutment bridge is not possible.

The design is straightforward; the biomechanics are the whole story. Because the pontic is unsupported on the far side, it acts as a lever on the abutment, and that force is controlled by case selection and by keeping the pontic out of heavy load.

  • Right site: An anterior or premolar space under light function, with a sound, well-supported abutment — where a cantilever is a clean, conservative fixed restoration.

  • Material to the case: Zirconia or PFM, chosen for the load and the esthetic zone.

Learn more
A technician relieving occlusion on a cantilevered pontic under magnification

At the Bench

Designed to Minimize Leverage

The force on the abutment is set at the design stage, not the chair. We design the pontic to keep the lever arm short and relieve it from heavy centric and excursive contact, verify the abutment margin and fit, and check the occlusion on the articulated model.

  • Pontic contour: Shaped to reduce the lever arm on the abutment.

  • Occlusion on the pontic: Set to control load — often relieved from heavy centric and excursive contact.

  • Abutment margin: Verified for fit on the model before the case ships.

Learn more

Before you prep

The pontic acts as a lever on the abutment, so case selection is the whole call: a sound, well-supported abutment and a pontic kept out of heavy load. Where a bonded design suits better, a Maryland bridge is more conservative; where loading a natural abutment is best avoided, an implant is the sounder plan.

Case Selection

When a Cantilever Bridge Is the Right Call

Indicated for

  • Sites with a suitable abutment on only one side of the edentulous space
  • Replacing a single tooth where the pontic can stay out of heavy occlusal load
  • Anterior and premolar cases where the cantilevered pontic sees light function
  • Situations where a resin-bonded design is not suitable but full-bridge prep is undesirable
  • A sound, well-supported abutment that can carry the leverage of an extension pontic

Consider an alternative when

  • Abutments exist on both sides — a conventional fixed bridge distributes load better
  • The pontic would sit under heavy occlusal or lateral load, increasing leverage on the abutment
  • A molar pontic is planned — the load on a single abutment is difficult to justify
  • An implant would avoid loading a natural abutment with a cantilever at all

Specifications

Cantilever Bridge Specifications

Design, biomechanics, and record data for planning the bridge chairside.

Typical parameters for the cantilever bridges we fabricate.
Design A fixed bridge with the pontic extended from a retainer on one side only — no abutment on the far side of the space
Material Zirconia or porcelain-fused-to-metal, selected for the load and the esthetic zone
Biomechanics The unsupported pontic acts as a lever on the abutment; case selection and keeping the pontic out of heavy load are what control that force
Occlusal reduction On the abutment, per the chosen material (1.0–1.5 mm zirconia; 1.5–2.0 mm PFM)
Pontic design Contoured and occlusally adjusted to minimize leverage; often taken out of heavy centric and excursive contact
Margin design Chamfer or rounded shoulder on the abutment, per material
Cementation Conventional or resin cement depending on the material and retention of the abutment preparation
Best sites Anterior and premolar single-tooth spaces under light load; molar cantilevers are difficult to justify biomechanically
Records Intraoral scan or impression, opposing arch, bite registration, and shade
Turnaround Quoted per case at intake

Cantilever success depends heavily on case selection, abutment support, and occlusal load on the pontic. Confirm case suitability and pontic design with the lab before you prep.

Case Submission

Sending a Cantilever Bridge Case

We accept scans from all major intraoral systems, including iTero, 3Shape, and Medit — or a conventional impression if your practice has not gone digital.

Include with the case:

  • STL or impression of the prepped arch and the opposing arch
  • Bite registration
  • Shade photos for the pontic and retainer
  • Which tooth is the abutment and which is the cantilevered pontic
  • A note on the occlusion at the site — centric and excursive contacts

The occlusal detail is what determines the leverage on the abutment, so it is the note that most affects the design. New to the lab? Open an account and we will walk you through the first case.

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.

Cantilever Bridge FAQ

Cantilever Bridges — Questions Dentists Ask

A cantilever fits when one abutment can safely carry a single pontic and the occlusion on that pontic can be kept light. It is the wrong call when the pontic would sit under heavy lateral or centric load, when the abutment is periodontally compromised, or when an implant or conventional two-abutment bridge is the sounder plan. Send a diagnostic scan and we will say which path we would take.

Send an intraoral scan or impression of the prepped and opposing arches, a bite registration, and shade photos. Tell us which tooth is the abutment and which is the pontic, and describe the occlusion at the site — excursive and centric contacts on the pontic determine the leverage. A clear margin on the abutment keeps the retainer fitting.

We design the pontic to minimize leverage — often relieving it from heavy centric and excursive contact — and verify the occlusion on the articulated model. We also give honest feedback on case selection, because a cantilever in a poor biomechanical situation fails the abutment, not the fabrication.

Monolithic zirconia keeps the case simpler and stronger in a small posterior cantilever. PFM adds framework rigidity and layered porcelain when the pontic is more visible or you want a metal-ceramic habit you already trust. A PFM cantilever adds framework and porcelain stages over a monolithic zirconia one.

Yes — and it is worth it. Whether a cantilever is sound depends on the abutment, the pontic position, and the occlusion. A quick review before you prep can confirm the design or point you to a conventional bridge or an implant instead.

How to send a file

Switching labs, de-risked

New to us? If a unit does not seat, we remake it at our cost when it is a lab error. We keep a shade record for your practice, so the second case starts from what worked on the first. See what the remake policy covers.

Let's talk

+1 747-268-0808 Contact the lab

More Insights

Partner Offer

A Free Intraoral Scanner for Partner Practices

Partner with Universal Dental Lab and we place a 3Shape TRIOS 6 Wireless in your operatory — free for the length of our partnership. Scan the prep, send it in seconds, and skip impressions entirely.

Send Your First Case Talk to a lab specialist