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Empire Dental Clinic
H-9200 Mosonmagyaróvár, Királyhidai u. 3. Hungary (Map)

Phone: 00 800 800 10 800

Tel./Fax: +36 96 208 208

E-mail:
info@dental-implant-in-hungary.co.uk

Zirconium Crowns

Extremely Robust and Durable.

Zirkonium Oxide ZiO2 like Zeno, Cercon, Lawa, Everest or Cerec

Zirconium Crowns Zirconium is rapidly becoming the material of choice for dental crowns. It is a remarkably robust material able to withstand the wear and tear of every day use. More importantly however, it has a translucency that is very similar to a natural tooth. Light is reflected from a Zirconium crown in much the same way.

This means that Zirconium will produce the best aesthetic effect, which is important if your new crowns are to be at the front. It is particularly the case when the crowns will be seen beside natural teeth.

Porcelain is the traditional material used for new crowns. Porcelain is however apt to chip or break. This problem is usually overcome by making new crowns from metal and then fusing porcelain to the outside. The metal provides the strength whilst the porcelain provides the outward appearance on a normal tooth. However, light can pass through a normal tooth but not a metal core which blocks it.

Due to the strength of Zirconium, we can now make crowns and bridgework without needed to add metal and so these new crowns are virtually impossible to distinguish from 'real teeth' - except of course we can control their size, shape and colour and thereby provide a perfect, yet natural looking smile.

Zirconium dioxide has been used in dentistry for the past 10 - 15 years. Its strength and durability have been proved. Additionally it is fully biocompatible so there are now risks of allergic reactions. It is increasingly being used in general surgery as well as in dentistry.

It is however a little more expensive than the traditional materials. To overcome this cost barrier some manufacturers have chosen to produce crowns, which use a lower grade compound in order to offer a cheaper product. Recent authoritative studies have however shown that these cheaper crowns are insufficiently resilient to withstand even normal use without cracking.

Advantages of All-Ceramic Restorations

Strength and Longevity - Zirconium is virtually indestructible whereas Porcelain crowns are prone to chipping. Crowns have a lifetime of around 10 years. Zirconium should last a lifetime.

Cosmetic - Have you ever seen people with a large unsightly black line above their gums? Up until recently most crowns are Porcelain which is Fused to a Metal base. Over time, the metal begins to show more and more and the restoration can look opaque and monochromatic, with the tell tale dark grey line at the crown join.
The Zirconium Crowns not only look more translucent, but are much stronger than the Porcelain fused to the Metal posts. The Zirconium crowns are milled from a single block of crystal and can be up to five times stronger than a porcelain / metal fuse.

Less tooth Removal - In cases where their is not much room for porcelain build up - for example if an tooth abutment is already quite bulky, a Zirconium Crown can be used because if provides more strength in less volume than a porcelain crown.

Disadvantages

As with everything in life, all these benefits come with a price. One of the reasons that dentist still prefer working with gold is because it's a relatively soft metal that gives. Zirconia is very tough, which is good until you consider the abrasive effect of the material against the other teeth, and onto the existing root. When the manufactures boast that their products are guaranteed for life, that again, seem like a good thing, until you realize, it's often decay underneath the crown that causes the crown to fail, not the crown itself.

More information about zirconium crowns

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