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Dental Crowns in Sutton

A crown is a laboratory made, high quality cap that completely covers your tooth.



It’s made from high quality porcelain and can either be hand crafted or digitally made from a computer.
Dental Crowns in Sutton offer best dental crowns options


Why Would I Need a Crown?
There are several benefits of dental crowns for a variety of tooth conditions.

To improve cosmetics

Dental Crowns can be placed in our Sutton dental clinic to improve the cosmetics of your teeth. They are beautifully made to mimic nature so that they look life-like and what nature intended them to look like. We can improve the shape, size, colour and arrangement of teeth by placing crowns on the affected teeth.

To Treat Tooth Wear

Dental crowns can be used to build up worn-down teeth back to where they used to be. Click here to read more about tooth wear.

After Root Canal Treatment

Dental crowns are often placed following root canal treatment. They are used for two purposes – to protect teeth from cracking and to seal the tooth really well to prevent reinfection from bacteria.

To Protect The Teeth

Dental crowns are used to protect weak teeth. If you have had a large filling or decay, it can lead to certain parts of the tooth becoming too thin. These parts are liable to fracture and often, when they fracture, it’s not just the thin bit that breaks off. The fracture line often goes in a diagonal direction, taking more of the tooth with it. The bigger the fracture, the bigger the loss of tooth structure, which can sometimes lead to the loss of the tooth. By placing a dental crown on your tooth, you protect it from cracking and thereby prevent larger problems from arising.

To Restore Dental Implants

To learn more about dental implants, click here to visit our sister site: The Denture & Implant Clinic

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Types of dental crowns and cost

It’s all about selecting the right material for your tooth

At Sensational Smiles, we believe in using the highest quality material around, and that’s why we generally use porcelain. There are, however, many different materials available. The pros and cons are listed below.

Zirconia – strength rating 1200 MPA

This is generally our go-to material for crowns. It’s a white metal that looks like porcelain. There is no greyness in it. The advantages are that’s it’s very strong and aesthetically pleasing. Because it’s strong, you can make it very thin (around 1 mm thickness in places where it’s loaded under biting pressure and 0.3 mm elsewhere). This means you save more of your natural tooth structure. The two major drawbacks to zirconia are that it doesn’t bond to the tooth, so you always need full coverage crowns, and it can be slightly on the opaque side. If you need a full coverage crown on a back tooth, then it’s a no brainer – zirconia will be the choice.

Emax Porcelain – strength rating 200MPA

This is another fantastic solution and a favourite of ours. It looks stunning and very life-like. It’s one of the strongest pressed porcelains around. The strength and aesthetics of it make it ideal for all onlays and veneers. You can bond to it unlike zirconia, and it looks very natural.

To combine the two best materials, we sometimes make the middle part (the core) out of zirconia and then layer it with emax porcelain to bring out the beauty in the restoration.

Metal-Ceramic Crowns (PFM)

These are traditional crowns and it surprises me that people still use this material. The first problem with it is that you have two materials joined together. Back in the day, there was no strong porcelain, so you had to have metal as the core to provide strength and support and then you layered it with porcelain to make it the colour of a tooth. The problem with using two materials is two-fold. Firstly, each material needs a minimum thickness for strength.
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The metal part is 0.5 mm and the porcelain is 1.5-2 mm, which makes a total of 2 mm+. Now, if you think of zirconia where you can have it at 0.3 mm, that means you get to keep 1.7 mm of tooth structure all the way around your tooth! It’s a mystery why a lot of dentists still use old school methods – the problem is they simply do not understand new techniques and materials!

The second problem is that it just doesn’t look good. If you look at a natural tooth, it’s slightly translucent, which means light shines through it nicely. When you use PFM crowns, the light shines through the porcelain and then hits a wall at the metal margin, which makes the crowns look dull and unnatural. This is even more apparent in photographs.

The last problem is that you can’t make onlays out of them and if possible, onlays are our go-to treatment option (see more below).

Metal

The good thing about metal is that it’s strong, but the major drawback is that the colour is horrible. That’s why we generally do not use it anymore. The only time we use it is when making gold crowns (if the patient specifically requests it).

What’s the difference between a crown and onlay?

Historically, we needed to cover the whole tooth for our crowns to stay in. Our cements simply were not strong enough; we needed to get retention from wrapping the whole crown around the whole tooth. By the way, a lot of dentists still do this, as they simply do not understand new techniques!

Nowadays, our materials are much stronger, and our cement is much stronger too, which means we can bond small sections of porcelain to the tooth. See the image below.

Therefore, it is unnecessary to have to grind the tooth down all the way around to fit a crown. So, often an onlay is a more conservative approach and will require 50 percent less tooth removal. Isn’t this great?
the difference between a crown and onlay

How do you make a crown/onlay?

The OLD traditional dental crown procedure was to take an impression, pour plaster models, and then hand-make a crown. This causes inaccuracies at every step of the process, resulting in a less-than-ideal fit in the end.

The NEW way is to take a high-tech digital scan, send it to a computer to be designed, and then the computer sends it to a milling machine, which carves out (mills) a block of ceramic into the final restoration. This block has been treated by high pressure and heat to make sure it’s the strongest material around. The technician then adjusts the porcelain to make it life-like and beautiful in your unique smile.

There are so many advantages to creating crowns and onlays this way. For more details, visit our sister brand The Denture & Implant Clinic.
Dental Crowns before and after results


In summary, there’s a lot more involved than you think when it comes to making dental crowns.

It is important that you choose a dentist like Dr. Amin at Sensational Smiles in Sutton who is up to date with new techniques and materials, and most importantly, someone who understands the principles behind high-quality, beautiful restorations.