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What are Dental Crowns and Tooth Bridges?

Both crowns and most bridges are fixed prosthetic devices. Unlike removable devices such as dentures, which you can take out and clean daily, dental crowns and bridges are cemented onto existing teeth or implants, and can only be removed by a dentist.

How do crowns work?

A crown is used to entirely cover or “cap” a damaged tooth. Besides strengthening a damaged tooth, a crown can be used to improve its appearance, shape or alignment. A crown can also be placed on top of an implant to provide a tooth-like shape and structure for function.

Porcelain or ceramic crowns can be matched to the color of your natural teeth. Other materials include gold and metal alloys, acrylic and ceramic. These alloys are generally stronger than porcelain and may be recommended for back teeth. Porcelain bonded to a metal shell is often used because it is both strong and attractive.

Dentist of The East Rose Dental (Old Rose Dental Clinic) may recommend a crown to:

  • Replace a large filling when there isn’t enough tooth remaining.
  • Protect a weak tooth from fracturing.
  • Restore a fractured tooth.
  • Attach a bridge.
  • Cover a dental implant.
  • Cover a discolored or poorly shaped tooth.
  • Cover a tooth that has had root canal treatment

How do bridges work?

A bridge may be recommended if you’re missing one or more teeth. Gaps left by missing teeth eventually cause the remaining teeth to rotate or shift into the empty spaces, resulting in a bad bite. The imbalance caused by missing teeth can also lead to gum disease and temporomandibular joint (TMJ) disorders.

Bridges are commonly used to replace one or more missing teeth. They span the space where the teeth are missing.

Bridges are cemented to the natural teeth or implants surrounding the empty space. These teeth, called abutments, serve as anchors for the bridge. A replacement tooth, called a pontic, is attached to the crowns that cover the abutments.

As with crowns, you have a choice of materials for bridges. Your dentist can help you decide which to use, based on the location of the missing tooth (or teeth), its function, aesthetic considerations, and cost. Porcelain or ceramic bridges can be matched to the color of your natural teeth.

How are crowns and bridges made?

Before either a crown or a bridge can be made, the tooth (or teeth) must be reduced in size so that the crown or bridge will fit over it properly. After reducing the tooth/teeth, your dentist will take an impression to provide an exact mold for the crown or bridge.

If porcelain is to be used, your dentist will determine the correct shade for the crown or bridge to match the color of your existing teeth. Using this impression, a dental lab then makes your crown or bridge, in the material your dentist specifies.

A temporary crown or bridge will be put in place to cover the prepared tooth while the permanent crown or bridge is being made. When the permanent crown or bridge is ready, the temporary crown or bridge is removed, and the new crown or bridge is cemented over your prepared tooth or teeth.

How long do crowns and bridges last?

While crowns and bridges can last a lifetime, they do sometimes come loose or fall out. The most important step you can take to ensure the longevity of your crown or bridge is to practice good oral hygiene. A bridge can lose its support if the teeth or bone holding it in place are damaged by dental disease.

Keep your gums and teeth healthy by Brushing with fluoride toothpaste twice a day and flossing daily. Also, see your dentist and hygienist regularly for checkups and professional cleanings.

To prevent damage to your new crown or bridge, avoid chewing hard foods, ice or other hard objects.

Crowns

Crowns

Bridges

Bridges

What is All-Ceramic Zirconia CAD/ CAM Dental Crowns & Bridges?

Whether your tooth has decayed, or become injured, an all-ceramic dental crown) is the most beautiful, precision-made and safe solution for replacing your damaged crown. Best of all, it looks just like your natural tooth – and is completely metal-free.
Unlike dental crowns with a metal core, all-ceramic dental crowns don’t show a grey line at their base near y our gums.

What-is-All-Ceramic-Zirconia-CAD-CAM-Dental-Crowns-&-Bridges

All-ceramic Zirconia crowns have created a new standard in cosmetic dentistry. The advantage of all-ceramic crowns compare to the traditional metal-ceramic crowns (porcelain fused to metal crowns) is their ability to permit better light transmission through the body of the tooth, creating a completely natural appearance.

With no black line at gum level and made to match your natural teeth in their size, shape, and color, an all-ceramic crown provides a very natural-looking restoration and smile.

The predominant material choice for all-ceramic crowns today is either zirconia or aluminous materials. They provide a metal-free esthetic option with a number of benefits.

Benefits of All-Ceramic Crowns

  • Biocompatible
  • Outstanding marginal fitting
  • Exceptional strength with high fractural resistance
  • Excellent esthetics and translucency

What is Porcelain Fused to Metal Crowns & Bridges?

Have underlying base metal alloys veneered with an aesthetic ceramic material to suit desired shades, and provide excellent strength.
These are economical and do not chip easily. However, the metal may show at the margin and the underlying metal may also affect the color of the ceramic.
Porcelain fused to metal restorations is still the most prescribed restoratives to date. Offering several different types of metals with which to fabricate the substructure, a wide variety of PFM crowns and bridge solutions are available.

Advantages:

Proven effectiveness, long term durability, metal occlusion protection, indicated for most dental restorative procedures, a wide variety of porcelains and metals available, porcelain margins for aesthetic quality.

Disadvantages:

A porcelain-fused-to-metal (PFM) crown has a core of cast metal alloy covered with porcelain. If your gum receded, a gray line may become visible.

Porcelain Fused To Metal Bridge

Porcelain Fused To Metal Bridge

What is Captek Crowns & Bridges?

Another new and popular esthetic crown is the captek crown, which is a combination of precious metal (gold) veneered with ceramic, making it highly aesthetic, strong, beautiful and natural-looking.
A revitalized smile can increase your self-confidence and enhance feelings of well-being. Captek Crowns and Bridges are cosmetic, healthy and durable; an advanced material designed for the patient who demands the best.

They are proven to be perfect for Achieving Vital, Attractive Tooth Color

The unique structure of the “composite metal” is the core reason Captek’s esthetic qualities are matched with strength, versatility and plaque resistance. Internally, a uniquely designed skeleton of strong, stable platinum/ palladium particles supports the gold.
No dark margins with Captek. The oxide-free, warm gold color, together with the unique light dispersion qualities of the surface creates a perfect background for porcelain that looks vital and naturally blends in.

Porcelain Fused To Gold Bridge

Porcelain Fused To Gold Bridge

More About Zirconia CAD/ CAM Crowns or Bridges

These days with so much information on the internet it can get confusing and frustrating trying to discover which dental treatment is right for you and it’s hard to know who to believe and trust.

Zirconium crowns and bridges are so strong they can be used anywhere in the mouth. Zirconium crowns can withstand the biting pressure of the front teeth as well as back teeth grinding.

The look of zirconium crowns and bridges is so close to natural teeth that it is hard to tell the difference and it is this quality which makes it very useable within dental work. Zirconium crowns can be fixed using traditional dental cements.

Zirconium crowns have quickly become the preferred material for dental crowns. Zirconium is a very strong substance that can endure wear and tear of everyday use. When looking at Zirconium crowns from an aesthetic point it is clear and very similar to a natural tooth and reflects light the same way. This may be important if your new crowns are on the front of your mouth and it is particularly relevant in cases where the crown will be seen next to the natural teeth.

Porcelain is the conventional material used for the new crowns however, Full porcelain can chip or break. This is overcome by making the crowns from the metal, in this case metal zirconia, then merge the porcelain on the outside. Zirconia metal gives strength while the porcelain gives the appearance of a normal tooth. Zirconium crowns allow light to pass as a normal tooth would and that gives a natural look, unlike other metal cores that are block the light.

More-About-Zirconia

General Definition

A crown is a dental restoration that completely covers or surrounds a tooth or dental implant and it is typically fixed to the tooth using traditional dental cement. Crowns can be made out of numerous materials, which are usually fabricated using an out-of-mouth method. Crowns are frequently used to improve the strength or appearance of teeth. Full-porcelain (ceramic) dental materials include porcelain, ceramic or glass screen fillings and crowns (aka jacket crown, a metal-free option).

General Definition

Overview

Zirconium crowns won’t corrode and the normal black gum line that you can see around a porcelain fused metal crown, won’t happen because of the strong ceramic material used. Also, the normal too hot/cold sensations you can feel with other crowns do not normally occur because of the lack of electrical conductivity.

Zirconia crowns have quite a few definite advantages over conventional PFM (sed to-metal) crowns. it looks so real and natural because zirconia reflects or passes the light as the normal tooth so it looks so close to a natural tooth, and quite difficult to tell the difference between them…to be sure, it is the best choice for front teeth.

The extra toughness of Zirconia crown or bridges can withstand the biting forces in the front teeth area as well as in the molar teeth area. And with the toughness of zirconia, zirconia crown does not need the metal.

Zirconium Crowns – Procedures

The procedure consists of:

  • To accommodate the new zirconium crowns a portion of your natural tooth’s structure is removed.
  • A temporary crown will be installed between visits, while the custom zirconium crowns are made in our laboratories, from the impression taken of the original teeth.
  • When the new zirconium crowns are ready the temporary crowns will be removed and your new custom zirconium crowns are securely fixed in place.

Some cases with Upper and Lower are made by Zirconia crowns to correct the stained teeth at The East Rose Dental (Old Rose Dental Clinic)

Case 1:

cases-with-Upper-and-Lower-are-made-by-Zirconia-crowns-to-correct-the-stained-teeth-at-Rose-Dental-Clinic

Case 2:

cases-with-Upper-and-Lower-are-made-by-Zirconia-crowns-to-correct-the-stained-teeth-at-Rose-Dental-Clinic

Case 3:

cases-with-Upper-and-Lower-are-made-by-Zirconia-crowns-to-correct-the-stained-teeth-at-Rose-Dental-Clinic

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