On this occasion we want to share with you a work that perfectly represents the combination of technical and aesthetic precision that we seek in each case.. It is a four-piece bridge supported on two implants., where one of the pieces is in cantilever, that is to say, in extension. This design poses specific challenges both structurally and functionally., and requires advanced solutions to ensure its durability and performance.
The challenges of cantilever in prosthetic dentistry
When we design a bridge with an extension piece, the distribution of masticatory forces becomes a critical aspect. Cantilever pieces can generate additional stress on the supporting implants and the structure material, which increases the risk of fracture or failure. For this reason, Selecting the right design and materials is key.
Why zirconium is not enough
Zirconium is a popular material in dentistry thanks to its high resistance and excellent aesthetics., but in cases like this, where there is a piece in extension, the risk of fracture increases significantly. Despite its robustness, Zirconium may be vulnerable to stresses concentrated at the point of extension. For this reason, We decided to use a mixed solution that combines the aesthetics of zirconia with the resistance of titanium..
Solution: type structure “blender” in titanium
To overcome these challenges, We have opted for a “blender” type structure made of titanium. This design consists of a metal substructure that provides the necessary rigidity to withstand chewing forces without compromising the integrity of the bridge..
Titanium is an ideal material in this type of case thanks to its:
- High mechanical resistance: Provides a solid, durable foundation to withstand stresses.
- Biological compatibility: Ensures safe and stable integration with implants.
- Lightness: Reduces the total weight of the restoration, improving patient comfort.
Manufacturing process and results
The work begins with the digital design of the titanium structure, which is carried out using CAD/CAM software. This approach allows absolute precision in the adjustment of the structure to the implants and in the distribution of forces. Once the structure is manufactured, It is coated with zirconia to achieve an aesthetic finish that perfectly imitates the appearance of natural teeth.
The final result is a three-piece bridge that combines:
- Impeccable aesthetics: Thanks to zirconium, the patient obtains a restoration that integrates perfectly with his smile.
- Durability: The titanium structure ensures that the bridge can withstand the forces of everyday life without risk of fracture.
- Functionality: Designed to distribute loads evenly, protects both implants and adjacent pieces.
Conclusion
This case reflects the importance of combining advanced materials and techniques to address each patient's challenges.. The integration of a titanium structure with a zirconium coating allows us to offer a durable solution, functional and aesthetically impeccable.
In our laboratory, Each work is an example of how technology and craftsmanship come together to offer the best to our patients.. If you have a similar case or need advice, do not hesitate to contact us. We will be happy to help you.
Very soon we will show you the result of this finished work.