Long lasting, highly aesthetic, more and more popular and expensive. These are the main properties of an Emax crown, which make them one of the best choices to restore your front tooth. Emax has already 100 million plus restorations globally! Read on for more details about the benefits, preparation, and advantages of Emax crowns.
What is the Emax System?
Emax is an all-ceramic system that is based on Lithium disilicate glass, and consists of quartz, lithium dioxide, phosphoroxide, alumina, potassium oxide and trace elements.
Emax based all-ceramic prostheses are rapidly gaining widespread popularity in cosmetic dentistry due to their excellent esthetics, durability, and strength.
The Emax system is mainly indicated for fabrication of crowns and veneers in the anterior region.
The Emax system is most suitable for the crowns and veneers of your front teeth. Emax is also the ideal choice for the short-span bridges for your anterior / front teeth.
Who can Benefit from the Emax System?
The Emax all-ceramic offers a cosmetic solution for the correction of following esthetic defects:
- Stained Teeth – say goodbye to your stained teeth with the Emax crowns and veneers. These all-porcelain prostheses are highly translucent and possess excellent fracture and chipping resistance.
- Crooked Teeth – Emax crowns can also be used to restore the structure and shape of crooked teeth, especially in the anterior region.
- Root Canal Treated Teeth – Teeth on which a root canal procedure has been performed, tend to become brittle and fragile. Emax crowns offer an excellent blend of esthetics as well as strength for restoring such teeth.
- Fractured Teeth – teeth that get fractured either due to extensive cavities or trauma, can also be restored with Emax crowns.
How are Emax Crowns Prepared?
Next, a digital impression of your teeth will be made with the help of an intraoral camera. You don’t need a messy impression with a paste here. This impression is then transmitted into the computer that controls the milling procedure.
Your dentist matches the shade of the crown with your natural teeth.
Finally, the milling machine cuts the monolithic block of Lithium disilicate to produce the required shape of the prosthesis. That is why we call it a monolithic crown. As the crown is made out of a single block, it stands really strong.
Then, your dentist adjusts the crown to your tooth, makes any fine adjustments if needed and glues it on to your tooth.
This means you get a crown on the same appointment. No waiting period, no multiple appointments, and no need of a temporary crown.
What are the Benefits of the Emax System?
Emax system based prostheses possess several advantages, which make them ideal for fabrication of fixed prostheses in the anterior region:
- Best Match to your Natural Teeth – an important esthetic requirement for all-ceramic prostheses is that they should possess sufficient translucency that matches your natural teeth. Emax crowns possess an ideal blend of translucency and lifelike appearance, that makes them suitable for restoration of front teeth. They are more translucent than zirconia crowns!
- All-ceramic Prostheses – Emax based prostheses do not contain any metal alloy beneath the porcelain. This means that a unsightly grey line of the underlying metal will not be visible at the gumlines, and the crowns will look just like your natural teeth.
- Durability – Emax crowns are prepared from lithium disilicate, which is a glass ceramic and possesses excellent strength. Thus, Emax crowns are less likely to crack or fracture during clinical usage. They are less likely to chip when compared to zirconia crowns!
- Ability to be Milled – another benefit of Emax crowns is that they can be quickly fabricated by using CAD CAM milling. Emax crowns are prepared from a high quality monolithic block of Lithium disilicate. All the dentist needs to do, is to prepare the teeth, make a digital impression and feed It into the CAD-CAM machine software, and voila! Emax crowns are ready for cementation!
- Conservation of Tooth Structure – since Emax crowns possess excellent strength and fracture resistance, these crowns can be prepared in very thin sections. This not only ensures optimal esthetics, but also requires minimal removal of natural tooth structure during preparation. The more the tooth structure you have, better is your oral health. When you have more tooth structure, your tooth stands stronger.
- Multiple Options for Teeth Restoration – the best thing about the Emax system is that it is not limited to all-ceramic crowns only. Rather, this system can also be used to fabricate veneers, inlays, onlays, overlays, and even short-span bridges to replace front teeth.
Disadvantages of Emax crown
- High price - superior looks of Emax come at a higher price.
- Not ideal for posterior/ back teeth - though rare, Emax crowns may fracture when we try to fit them on your occlusal / biting surfaces. This is because they are thin. However, Emax crowns are more suitable for front teeth as we don’t use them for hard biting. If you want to use Emax for posterior teeth because of looks, we need to trim your teeth more so that Emax gets enough thickness to seat. The strength of your crown always depends on the thickness. Thicker the crown, better it withstands the biting forces.
- May not suit darker teeth - as Emax is more translucent than zirconia, they look more natural than zirconia. However, if your natural tooth is on the darker side, zirconia suits you more.
- Suitable only for smaller bridges - Emax is suitable for replacing only a single tooth. It may not withstand forces for replacing more than one tooth.
Newer varieties of Emax
We also have newer, modified, and better varieties of Emax these days.
IPS e.max ZirPress is a combination of lithium disilicate and zirconium dioxide wherein lithium disilicate is pressed on to zirconium dioxide for enhancing its properties. The good news is even with a thickness of 1 mm, Emax crowns carry a flexural strength of 500 MPa! (Flexural strength is the ability to withstand forces before a prosthesis fractures.)
There are two varieties of Emax trending for CAD CAM these days:
- IPS e.max CAD is a lithium disilicate glass-ceramic blocks which is great on looks.
- IPS e.max ZirCAD zirconium oxide which has an improved strength. They are more suited for posterior bridges.
Another variety of Emax known as IPS e.max Press Abutment Solutions is suitable for implants. It combines a titanium base (Ti base) with the lithium disilicate glass-ceramic to give you an implant-supported hybrid restoration.
How much does an Emax crown cost?
Just like other newer crown types, the enhanced durability and natural look come at a price. Probably the only disadvantage of Emax crowns is their price, they cost more than most other crown types, e.g. PFM crowns.
While it's impossible to provide an exact price here, we tried to gather the usual prices from a few different countries. Please note that prices might differ significantly based on your exact location, the experience of the denstis, the size of the tooth, etc...
Need a local dentist?
While general dentists can fit emax crowns perfectly, your best bet is to visit a prosthodontist for this treatment. These dentists are the most experienced in restorative dentistry.
Not sure which local dentist to choose?
There might be a lot of dentists in your area offering emax crowns. If you are not sure which one to choose, call our partner at 1-855-226-0262 and they will be happy to help you make a decision.