- Passive-fit framework
- Laser-sintered Cr-Co
- 5-axis CAD/CAM milling
- Pink aesthetics and lip support
- Optional PMMA try-in prototype
- Retrievable and repairable
What is a Toronto bridge?
A Toronto bridge is a screw-retained hybrid prosthesis for the edentulous jaw: a rigid framework, usually supported by four to six implants, carries denture teeth and pink gingival material. The patient cannot remove it, while you can unscrew it chairside for check-ups, hygiene and repairs. In full-arch rehabilitation it sits between a removable overdenture and a full-ceramic bridge, combining the comfort of fixed teeth with straightforward restorability.
Indications
A Toronto bridge is indicated when significant bone and soft-tissue loss has to be compensated and lip support must be rebuilt by the prosthesis.
- Patients moving from a complete denture to a fixed solution
- Cases that require pink aesthetics and lip support
- Angled implants where screw access channels need careful planning
- Full-arch cases in which easy repair or tooth replacement matters later on
Material and production
We design the framework in 3Shape or Exocad, based on the implant positions and the final tooth set-up. The set-up is verified first, so the framework gives even and sufficient support to the teeth and the pink portion. Cr-Co frameworks are produced by laser sintering or, alternatively, milled on our Arum 5-axis CAD/CAM unit. Passive fit is decisive for the long-term success of a Toronto bridge: a framework that seats under tension can lead to screw loosening and unwanted load on the implants. If you wish, the design is first tried in as a PMMA or 3D-printed prototype, so you can confirm aesthetics, phonetics and vertical dimension before the definitive framework is made. Finally, the denture teeth and pink gingiva are processed onto the framework, and occlusion and cleansable areas are checked.
Why Marjinal CAD?
As a dental laboratory in Turkey working for clinics at home and abroad, we run the entire process on one digital data set, which keeps tooth set-up, framework and finished prosthesis consistent.
- Framework design in 3Shape, Exocad and Dentalwings
- Laser-sintered Cr-Co and 5-axis CAD/CAM milling
- Screw channels planned away from the visible zone wherever anatomy allows
- Cleansable, convex intaglio surface for easier hygiene
- Design previews sent for your approval before production
Sending a case
If you work with an intraoral scanner (iTero, 3Shape TRIOS, Medit), send STL or PLY files captured with scan bodies, together with the opposing arch and a bite registration. In a conventional workflow, an open- or closed-tray implant impression, a bite registration and information on the existing denture are sufficient. Please state the implant system, platform diameter and connection type in your case notes so that we select the correct components. You can reach our team at +90 542 329 30 56 or [email protected].
Frequently asked questions
Is a Toronto bridge the same as All-on-4?
All-on-4 is a surgical concept using four implants, whereas a Toronto bridge is the screw-retained hybrid prosthesis placed on such implants. A Toronto bridge can be made on four, five or six implants.
Can the patient remove a Toronto bridge?
No. It is screw-retained and can only be removed by the dentist, which makes check-ups, professional cleaning and repairs straightforward.
How is the framework manufactured?
We produce Cr-Co frameworks by laser sintering or mill them on an Arum 5-axis CAD/CAM unit. In both cases the design follows the tooth set-up and aims for a passive fit.
Can I send a Toronto case as an intraoral scan?
Yes. Send STL or PLY scans with scan bodies, the opposing arch and a bite registration, and add the implant system details.