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A dental crown is a cover or cap that your dentist puts over a tooth in order to restore and recover it. A dental crown also restores the tooth to its normal shape, size, and function. A crown can make the tooth stronger or improve the way it looks. It also depends on such different factors as the teeth’s structure, the patients’ habits and the condition of teeth. About 1 to 1.5 mm of the tooth texture is scraped during the restoration process. It is very vital and essential to prevent it from re-decay. Dental crowns are used for restorative and cosmetic purposes.
A dental crown brings many benefits to every person. In general, the benefits and advantages of a dental crown are:
The porcelain fused to metal crowns or full-cast crowns consist of a metal alloy covered by a layer or ceramic which should mimic the natural enamel color, the metal alloy substructure give the crown great strength if you compared it with the all ceramic crown, it provide you a service which is durable and long lasting, it also have a more precise fit over the tooth than the all ceramic.never the less, there is some problems with this type of crowns where it can cause wear in the opposing teeth because of the porcelain and that is of limited concern if the porcelain kept the glaze and polish it received when it is made in the lab.
With the new developments in adhesive dentistry and the stronger porcelain materials now in the market, it is possible now to construct crowns which is made completely from ceramics, and bonded directly to the tooth, and with the absence of the metal substructure it is now possible to place the finish line above the gingival line without the fear of ugly metal edge to appear, one of the biggest advantages of all porcelain crown is their superior aesthetic, as the name implies, it is made totally from ceramic which can mimic the light characteristic of tooth enamel,and give you a very natural appearance.
The zirconium became one of the most dental material chosen for dental crowns or bridges, it has so many advantages, most important one is it is very strong and tough, they can withstand the tear and wear, but in the same time posses enough translucency to look like natural teeth, they require less removal of tooth tissue thus considered a good conservative option, and it is also bio-compatible material.
