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Tag: zircônia

Pure zirconia dental crowns – the strongest material for crowns

Zirconia crowns are dental prostheses indicated for restoration and dental rehabilitation in people who have had damage to one or more teeth. Rehabilitation with dental crowns aims to restore the aesthetics and functionality of the smile, improving not only chewing, the appearance of the teeth, but also self-esteem.

Zirconia crowns: excellence for aesthetic results

However, some materials used to make dental crowns are not strong enough to be used in patients suffering from bruxism. As is well known, bruxism is a disorder of oral function movements, characterized mainly by involuntary grinding or clenching of the teeth.

translucent pure zirconia crowns
Translucent pure zirconia crowns
zirconia crowns
Pure zirconia crowns. Translucent zirconia is 10 times stronger than ordinary porcelain.

It occurs mainly during sleep. This excessive load on the teeth and musculoskeletal structures of the face can cause problems with the teeth and correct occlusion in general.

Although the cause of bruxism is not very clear, it is certain that this condition most often affects people who suffer from emotional problems, such as stress, anxiety and excessive worry.

Just as the excessive force generated by bruxism can wear down teeth, it can also damage dentures made of certain materials.

In these cases, our team has the option of recommending porcelain crowns with a pure zirconia internal structure, which are proven to be more resistant and can withstand a greater load, even in patients with bruxism.

Zirconia acquires this strength because it goes through a controlled process called sintering, which is heating it at a high temperature in a special furnace. This process modifies its particles, creating a solid and very strong prosthetic piece. Other properties of crowns with a pure zirconia structure:

How do I know if I can have a crown with pure zirconia even if I have bruxism?

First of all, it’s important to assess the degree of oral impairment that bruxism has caused so far. If you have untreated bruxism for many years, there may be advanced wear of the dental crowns and/or root fractures.

Therefore, before receiving prosthetic crowns to rehabilitate and restore your smile, you will probably need to undergo treatment to correct these defects (e.g. root canal treatments, vertical dimension increase, clinical crown increase). Dr. Markarian, our general manager, saysthat controlling bruxism is essential to avoid future problems and porcelain crowns with a pure zirconia structure may be indicated.

ImplArt Odontologia has its own dental laboratory with the Cerec 3D, Cerec Primemill, Trios 3Shape and Ceramill systems, which speed up the fabrication of crowns with pure zirconia and metal-free ceramics, in some cases even in just a few hours in an ImplArt Day Clinic or Dental Spa, where you can carry out the largest number of dental procedures in just one appointment or in just a few days. This way, patients can set aside a day in their schedule or a few days in a week to dedicate to dental treatment, without it taking months to complete.

If you have any questions about treatment with metal-free aesthetic crowns, please make an appointment or contact us by clicking on the button below. We will be happy to assist you.

More translucent and resistant cubic zirconia crowns

Translucent cubic zirconia is an evolution of conventional dental zirconia. Dental zirconia is increasingly being used as a material for making a dental crown or even for a fixed prosthesis on dental implants. As our dental Clinic is integrated with a dental Lab in Sao Paulo-Brazil, we can easily delivery zirconia crowns in a new days. Translucent Zirconia has certainly come to revolutionize the way dental prostheses are made, since it uses modern computer graphics resources to design the prostheses, and modern 3D milling machines to sculpt them. This makes treatment faster and more comfortable for the patient.

In addition, Zirconia is the most resistant material compared to other types of crowns and allows for results with a high degree of naturalness, being the most similar to the appearance of natural teeth.

Zirconia can also be used on implants, full arch implant bridges and partial prostheses.

Why is dental zirconia an excellent material?

First and foremost, one of the greatest advantages of the Pure Zirconia dental crown is its strength and durability. In addition, its modern execution method, which doesn’t require the old mass moldings and only uses a 3D scanner, makes the treatment much more comfortable for the patient. It is therefore an excellent option for those who want metal-free treatment, a situation that is highly valued today with biological dentistry.

translucent cubic zirconia dental crown
Translucent cubic zirconia crown for molar tooth (bottom), with hole for screwing into dental implant

These zirconia structures can be used both for implant prostheses, types of crowns on implants and for crowns on natural teeth. One of the pioneering companies in the development of durable and aesthetic zirconia dental prostheses is the Austrian company AmannGirrbach. Now it is introducing a new type of dental ceramic: Zolid FX translucent cubic zirconia.

It is a fully biocompatible material used to make first-rate prosthetic crowns, not only single-unit, but also bridges of up to 3 units. The main characteristics of Zolid FX are its super-high translucency, high strength and long-term stability.

It is therefore a strong alternative to the already established lithium disilicate (glass ceramic), and can therefore be especially suitable for cases that require high porcelain crown strength. Cubic zirconia crowns can be installed both anteriorly with excellent aesthetics and posteriorly. They can also be used in dental implant treatment.

What is the manufacturing process like?

The Zolid FX cubic zirconia crown is made using computerized CAD/CAM equipment. It starts with milling the rough block on a 3D printer to the shape of the tooth. The zirconia crown is finished with the manual addition of colors and shading so that the crown has natural visual characteristics, like the neighboring teeth. The pure zirconia crown is super aesthetic and is up to 10 times stronger than ordinary (feldspatica) porcelain.

… After a dental implant, can I place the tooth on the same day? See here…

Translucent cubic zirconia crowns are suitable for bruxism patients due to their resistance

Bruxism is an oral functional disorder characterized by involuntary grinding or clenching of the teeth. The excessive force generated by bruxism can cause not only muscle and joint pain in simpler cases, but also the destruction of part of the tissues (bone and gum), enamel or the structure of the dental crown in more advanced cases.

It is important to remember that before your permanent porcelain crown is made, you will receive a temporary crown. This is used to check the aesthetics and chewability of the permanent crown.

However, bruxism can be just as damaging to the structures of prosthetic crowns made from certain materials. For this reason, there has always been a need to develop prostheses with increasingly resistant and stable materials, and at the same time aesthetic (without metals in the structure).

Meet the Ceramill Motion 2 3D tooth printer

The translucency and strength characteristics of Zolid FX are fundamental to making the prosthetic crown very comparable to natural teeth. The result is extremely aesthetic crowns and restorations with high strength and long-term stability.

ImplArt Dental Clinic only works with materials of the highest quality, developed by serious companies. For example, AmannGirrbach, which only introduces materials and equipment to the market after carrying out numerous tests and research.

If you have any questions, please contact us or our implantologyst Dr Markarian.

Dental zirconia: better aesthetics for dental prostheses

There are different materials that can be used to build a dental prosthesis, the main ones being: resin with a metal internal structure (metalloplastics/Branemark protocol), ceramic with a metal internal structure (metalloceramics) and the most aesthetic option which is ceramic with a metal-free dental zirconia internal structure (metal free).

Therefore, among the possible materials for dental prostheses, we have:

  • resin with an internal metal structure – this is known as metalloplastic or Branemark protocol,
  • ceramic with an internal metal structure – this is called metal-ceramic,
  • the metal-free dental zirconia ceramic.

The most aesthetic option is ceramic with a metal-free dental zirconia structure, also known as metal free.

The evolution of aesthetic dentures

Most total or partial infrastructures are made with metal alloys that play the role of mechanical and functional support. However, their dark color can compromise the final aesthetics, especially in areas that are more apparent and important to patients.

As a result, metal-free ceramic structures are gaining ground, mainly because they achieve a more aesthetic result and because of their biocompatibility, resistance and stability.

Dental ceramics and zirconia are considered the most advanced materials because they do not contain metals in their composition, which provides an aesthetic dental prosthesis that is much more similar to natural teeth.

Zirconia teeth can be single, bridged or full-arch, installed on teeth or on dental implants.

dental zirconia
A zirconia dental prosthesis is made to perfectly mimic dental and gum tissues. Above, the zirconia prosthesis designed, and below, the prosthesis installed. Both the color and the shape were designed individually and jointly between the patient and the implant dentist.

Dental zirconia is a white, resistant ceramic material used to build the structure of the prosthesis. A layer of porcelain is applied to this structure, which makes the prosthesis similar to natural teeth in terms of translucency, texture and shade.

As zirconia is white, the prosthesis has a similar shade and translucency to natural teeth, even when exposed to light.

New types of more translucent dental zirconia allow for the complete fabrication of dental prostheses by computer, without the need to apply porcelain manually.

The shade of zirconia is comparable to natural human dentin. In contrast, the same result cannot be achieved with a prosthesis containing a metal framework.

Zirconia – far superior aesthetics

Metal-ceramic prostheses, when exposed to light, have a slightly darkened core. In addition, over time, grayish lines may appear on the gingival margin.

This is because bone and gum changes naturally occur over the years, and this remodeling can expose a small portion of the metal of the prosthesis and thus cause aesthetic damage to the smile.

Another advantage of zirconia is that prostheses made from this material are completely computer-engineered and executed on 3D printers using Cad/Cam systems. This allows prostheses to be made more quickly and accurately.

For your convenience, ImplArt Odontologia has its own digital prost hesis laboratory that develops dental zirconia prostheses. Make an appointment and find out if this technique is right for you. We would be delighted to hear from you!

See below for photos of implant treatments and fixed porcelain and zirconia dental prostheses:

Read more about dental zirconia