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How can we replace a missing teeth?

The decision depends on the number of missing teeth, their position in the mouth and the condition of the neighbouring teeth. There are two options. The first option: a removable false tooth or teeth which is called partial denture. The second option: a fixed bridge. A bridge is usually used if only few teeth are to be replaced, or if there are enough post teeth to hold it, or if some of the teeth can be replaced by implants.

At the edges of old crowns a bluish discolouration can be seen quite often on the gum, how can it be avoided?

1. Abroading technique: with the traditional, old technique the tooth was abraded under the gum and the crown was dented into the gum, so the gum can be irritated, inflammated, becomes bluish and easy to bleed. With the modern technique we polish a line of demarcation into the tooth, which we call collar. The crown will lean on this collar and will not irritate the gum, so this will remain healthy.
2. Precision: the other important aspect is precision. If the edge of the crown doesn't fit accurately the tooth it can also cause inflammation and discolouration of the gum.

What causes the bluish line at the edges of the crowns?

While making crowns first a metal base is pulled onto the tooth, then it is covered by porcelain which makes the crown tooth-coloured. This metal base can be seen through the gum. It can be avoided by using metal-free crowns, the base of which is Zirconium – this material is originally white, so we can avoid the decolouration on the gum.

How can be natural, lifelike crown made?

By using metal-free 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.

The advantages of metal-free crowns and bridges:

- they fit the tooth very accurately
- they are lifelike, their translucency is very similar to natural tooth
- they ensure the best aesthetic effect
- they don't cause allergic reactions
- they are strong enough to use them for dental bridge work