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Clinicians who wish to provide patients with excellent dental restorations often choose zirconia crowns. These crowns are chosen over conventional PFMs (Porcelain Fused to Metal) due to their superior strength, durability, and excellent aesthetics. Some dentists exclusively use zirconia over all-ceramic restorations, particularly when restoring a single tooth.

They may be fabricated from solid full-contour zirconia, high translucent zirconia or zirconium veneers Solid zirconia or Zirconium veneers
Solid zirconia, or “monolithic zirconia,” is opaque, which is why it’s generally recommended for posterior crowns. Solid zirconia contains more stabilizers than high translucent zirconia, making it more durable to withstand forceful chewing and grinding. This material is particularly suitable for patients who may grind their teeth. Only minimal clearance is required for this type of restoration, and there is low wear on opposing teeth. Solid zirconia is also very effective for masking highly discolored dental preps, specifically those that have darkened due to previous dental treatments, such as a post and core or a restored dental implant. 

 

Crowns made of zirconia are becoming increasingly common, and they do offer some advantages.

Strength
One of the biggest advantages of zirconia is its strength and durability. Consider how much force your back teeth exert on the food that you chew.

Your crowns need to be made of a strong material, so zirconia may be a good choice for crowns in the back of your mouth. Also, because zirconia is so strong, a dentist won’t have to do as much preparation of your tooth.

 

Longevity

Zirconia-based crowns fared just as well over the course of 5 years as metal-based crowns, according to a 2017 randomized controlled trial published in the Journal of Dentistry. And crowns made of zirconia, called monolithic zirconia crowns, are especially durable.

 

Biocompatibility

Zirconia is the choice of many dentists for its biocompatibility, which means it’s less likely to provoke the body into producing a reaction or immunological response like inflammation.

Zirconium veneers are more translucent and opalescent, but unlike solid zirconia, it is especially suitable for anterior crowns. These are veneers constructed without using metal in the substructure and by processing the zirconium, which is a white colored alloy. Zirconium veneers are the most esthetic veneers and the closest veneers to natural teeth. Therefore, they are most commonly preferred in esthetic dentistry.

They do not appear dull thanks to their high transparency. Discoloring seen in veneers with metal substructures are not seen in this type of veneers. They can safely be used in allergic individual also as they are compatible with human body.
Although generally used for anterior crowns, zirconium veneers may also be used for posterior crowns if there is sufficient clearance. When done skillfully, the very best aesthetic results can be achieved. Both solid zirconia and zirconium veneers have a strength and consistency that is comparable with traditional PFM restorations, yet they provide far superior aesthetics

 

What are the Advantages of Zirconium Veneers?
 

Since zirconium is white in color, the reflection of the black metal will not be seen like in porcelain veneers with traditional metal allot substructure. Zirconium is transparent, and this property is used particularly on anterior teeth to achieve the ideal esthetic appearance of smile.
 

It can safely be used on posterior teeth also thanks to its high resistance against chewing forces.
It does not cause allergy as it is a biocompatible material. Individuals with metal allergy must have zirconium veneers if they wish to have their teeth veneered. If porcelain veneers with metal substructure are used in such persons, many dental or gingival including gingival inflammation, gingival recession, bleeding, swelling or redness can be faced.

 

Zirconium veneers have very good hot reflection properties, and therefore they are not affected from hot or cold, and do not cause sensitivity.
It is possible to achieve the required color in a tooth with a very dark color. It can be applied on any tooth with any color. Color of the zirconium veneer will not change even after long years.
Zirconium teeth cannot be differentiated from natural teeth thanks to its esthetic structure.
The opaque appearance of porcelain veneers with metal supports under daylight and photo flash will not be seen in zirconium veneers.
They are lighter in weight as compared to veneers with metal supports.

 

What are the Disadvantages of Zirconium Veneers?
 

Costs of zirconium veneers are higher than other veneers. In spite of this, it must not be ignored that they have more esthetic appearances and can serve you for long years without being impaired because they are durable.
They are not preferred in posterior regions with long toothless spaces, because fractures can be seen in these regions.m veneers do not create a metallic taste in the mouth.

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