Dental crowns can be fabricated in a variety of materials and colors. A dental crown is essentially a cap made to protect the remaining structure of a damaged or decayed tooth. Newer and newer dental crown materials are being introduced to the market, with some very promising results.
Zirconium is a metal that is strong and biocompatible, like Titanium. Zirconium is less likely to break because it is stronger than a porcelain crown. One disadvantage of Zirconia crowns is that it can wear down the opposing natural tooth due to its increased strength. For patients and dentists, this is something to take into consideration when selecting the right material for a custom dental crown design.
Zirconia crowns are also more aesthetic than a porcelain-fused-to-metal crown because porcelain-fused-to-metal is opaque and does not allow light through.
The crystalline oxide of zirconium metal has a crystal structure that contains oxygen. Zirconium dioxide (ZrO2) therefore exhibits a crystalline transparency, allowing for a more "natural" tooth look. Due to decreased opacity and increased strength, it is therefore a more desirable choice as compared to the porcelain-fused-to-metal crown material which is now being largely out-phased.
In order to prevent further decay or wear and tear, a dentist may propose a dental crown. A dental crown is a custom-designed prosthetic that covers a fractured or worn-down tooth, in order to restore the original tooth's form, aesthetics and function. Therefore, dental crowns are a practical solution that serve both medical as well as cosmetic purposes. When selecting a Zirconia crown, the dentist may ask to examine the color of the neighboring tooth in order to "shade-match" the remaining teeth as closely as possible. Due to its resistance and ability to "blend in" it has become a prescribed material of choice as a fixed restoration.
Statistics show that the prescription rate of Zirconia crowns has increased in a logarithmic manner, while the prescription rate of Porcelain-fused-to-metal crowns has shown a decrease over time.
Zirconia materials such as posts and implants were introduced to dentistry in the 1990's, whereas milled Zirconia crowns entered the commercial market in 2010. Therefore, the dental world has had many years to test it's strength and biocompatibility as a restorative choice. Time and time again, Zirconia has proven its metal-like strength, consistent resistance and natural aesthetics.
The reason a crown needs to maintain metal-like strength and consistent resistance to other forces is because many patients unknowingly grind their teeth nocturnally. Therefore, Zirconia is the go-to choice for patients with a history of bruxism. History shows that Zirconia crowns can last more than 20 years with proper home care and regular dental visits.
More recent dental crown materials have entered the market, such as Emax crowns which offer the most aesthetic appeal. Emax crowns can be safely designed as an aesthetic option in the front part of the mouth. However, Emax crowns do not offer the same durability and long term strength as Zirconia. In the back teeth, where the chewing forces are greater, it is therefore implicated to choose Zirconia instead of the Emax crown.
More advanced methods of crown fabrication exist on the dental market, including the fusion and sintering of Full Emax crown to Zirconium. This offers the aesthetic appeal of the Emax crown on the surface, whilst maintaining the durability and strength of Zirconium underneath the surface. This makes it transparent, whilst consistently offering long lasting results.
The Zirconium is first sintered at a high temperature, increasing its overall hardness. Then, the Emax layer is fused to the surface of the crown for a naturally beautiful result.
An additional benefit of the crown is that it can come in a variety of shades and colors, including differing shades nearest the gum line. By adding differing shades to the crown, the dentist can design a custom crown that has an uncanny resemblance to the next tooth. In most circumstances, unless one has a trained eye, they cannot tell the difference between a Zirconia crown, Emax crown or the natural tooth. Both Zirconia and Emax crowns look like natural enamel due to its creamy white color and optimal transparency.
Zirconia crowns have a non-porous material, making them more resistant to breaking, chipping or fracturing. This is what makes Zirconia extremely strong and long-lasting, as it is able to withstand the forces that other ceramic crowns simply cannot endure. Zirconia also offers more benefits than the traditional all metal crown, as there is less impact on the gums and it has a shiny, ivory appearance as opposed to full metal crowns or gold crowns which may not look as "classy".
Historically, Porcelain crowns showed a bulkiness that Zirconia does not. A Zirconia crown need not be bulky, as the material has a natural flexural strength even if the crown is only a few millimeters thick.
If you would like a crown for many years that does not change color or shape, then Zirconia crowns may be the right choice for you. Please speak with a dentist about all the available materials before making a selection. The choice of dental crown material is a huge decision that can mean the difference between being in comfort or being in discomfort.
With regular maintenance and upkeep, a dental crown can last many years. However, the opposite is also true. If you do not brush and floss after receiving a dental crown, then secondary decay and problems along the gum line may possibly occur.
Bleeding and inflammation of the gums, can signal a mild but fully reversible condition known as gingivitis. This is a natural response of the gums that can occur before and/or after receiving a crown, as the gums can become overly sensitive or irritated due to bacteria and/or trauma.
Regular and consistent brushing and flossing can prevent gingivitis around the crown from turning into a more serious condition known as periodontitis.
Periodontitis is one of the leading causes of crown failure, as bacteria under the gum can attack the underlying bone and cause tooth mobility. Therefore, it is important to visit the dentist every three to six months, to check for any gum problems. A scaling and root planing also known as a "deep cleaning" can reverse the problem of gingivitis and periodontitis around a crown. More advanced gum disease, which spreads into bone disease, has to be addressed with the prophylactic use of antibiotics such as Amoxicillin before a deep cleaning can be performed.
If one finds that the crown fits poorly or is overly bulky, then a dentist can adjust or change the crown in future dental visits. Small adjustments can sand down a crown that is overly large and wearing down the opposing teeth. The dentist may decide to polish the crown and paint it with a surface glaze after making any adjustments to the Zirconia using an electric drill.
The Zirconia can also be "stained" at the gum line to mimic the natural appearance of all of the other teeth. A variety of shades and color options are available, and the dentist will take time to show a catalog of different customized aesthetic designs and options.
If unsure or not ready, it is still advisable to make an appointment with the dentist for a crown consultation. The routine procedure during the appointment includes a clinical exam including radiographic x-ray examination and gum probing. Once the amount of remaining tooth structure is evaluated and determined, the dentist will let the patient know of their restorative options.
Sometimes a filling will suffice as the restoration of choice for a decayed or broken tooth. However, in times where there is not enough remaining tooth structure, a crown could be the only way to save the tooth. A dentist will have to evaluate the tooth after removing all diseased and broken tooth structure before coming up with a viable treatment plan.
It is always advisable to get another opinion from a dentist if unsure about your need for a dental crown. The restorative dentist may refer you to a gum specialist (called a periodontist) or an oral maxillofacial surgeon if it is an advanced case that needs more than one opinion. This depends on theDental crowns can be fabricated in a variety of materials and colors. A dental crown is Dental crowns can be fabricated in a variety of materialsessentially a cap made to protect the remaining structure of a damaged or decayed tooth. Newer and newer dental crown materials are being introduced to the market, with some very promising results.
Zirconium is a metal that is strong and biocompatible, like Titanium. Zirconium is less likely to break because it is stronger than a porcelain crown. One disadvantage of Zirconia crowns is that it can wear down the opposing natural tooth due to its increased strength. For patients and dentists, this is something to take into consideration when selecting the right material for a custom dental crown design.
Zirconia crowns are also more aesthetic than a porcelain-fused-to-metal crown because porcelain-fused-to-metal is opaque and does not allow light through.
The crystalline oxide of zirconium metal has a crystal structure that contains oxygen. Zirconium dioxide (ZrO2) therefore exhibits a crystalline transparency, allowing for a more "natural" tooth look. Due to decreased opacity and increased strength, it is therefore a more desirable choice as compared to the porcelain-fused-to-metal crown material which is now being largely out-phased.
In order to prevent further decay or wear and tear, a dentist may propose a dental crown. A dental crown is a custom-designed prosthetic that covers a fractured or worn-down tooth, in order to restore the original tooth's form, aesthetics and function. Therefore, dental crowns are a practical solution that serve both medical as well as cosmetic purposes. When selecting a Zirconia crown, the dentist may ask to examine the color of the neighboring tooth in order to "shade-match" the remaining teeth as closely as possible. Due to its resistance and ability to "blend in" it has become a prescribed material of choice as a fixed restoration.
Statistics show that the prescription rate of Zirconia crowns has increased in a logarithmic manner, while the prescription rate of Porcelain-fused-to-metal crowns has shown a decrease over time.
Zirconia materials such as posts and implants were introduced to dentistry in the 1990's, whereas milled Zirconia crowns entered the commercial market in 2010. Therefore, the dental world has had many years to test it's strength and biocompatibility as a restorative choice. Time and time again, Zirconia has proven its metal-like strength, consistent resistance and natural aesthetics.
The reason a crown needs to maintain metal-like strength and consistent resistance to other forces is because many patients unknowingly grind their teeth nocturnally. Therefore, Zirconia is the go-to choice for patients with a history of bruxism. History shows that Zirconia crowns can last more than 20 years with proper home care and regular dental visits.
More recent dental crown materials have entered the market, such as Emax crowns which offer the most aesthetic appeal. Emax crowns can be safely designed as an aesthetic option in the front part of the mouth. However, Emax crowns do not offer the same durability and long term strength as Zirconia. In the back teeth, where the chewing forces are greater, it is therefore implicated to choose Zirconia instead of the Emax crown.
More advanced methods of crown fabrication exist on the dental market, including the fusion and sintering of Full Emax crown to Zirconium. This offers the aesthetic appeal of the Emax crown on the surface, whilst maintaining the durability and strength of Zirconium underneath the surface. This makes it transparent, whilst consistently offering long lasting results.
The Zirconium is first sintered at a high temperature, increasing its overall hardness. Then, the Emax layer is fused to the surface of the crown for a naturally beautiful result.
An additional benefit of the crown is that it can come in a variety of shades and colors, including differing shades nearest the gum line. By adding differing shades to the crown, the dentist can design a custom crown that has an uncanny resemblance to the next tooth. In most circumstances, unless one has a trained eye, they cannot tell the difference between a Zirconia crown, Emax crown or the natural tooth. Both Zirconia and Emax crowns look like natural enamel due to its creamy white color and optimal transparency.
Zirconia crowns have a non-porous material, making them more resistant to breaking, chipping or fracturing. This is what makes Zirconia extremely strong and long-lasting, as it is able to withstand the forces that other ceramic crowns simply cannot endure. Zirconia also offers more benefits than the traditional all metal crown, as there is less impact on the gums and it has a shiny, ivory appearance as opposed to full metal crowns or gold crowns which may not look as "classy".
Historically, Porcelain crowns showed a bulkiness that Zirconia does not. A Zirconia crown need not be bulky, as the material has a natural flexural strength even if the crown is only a few millimeters thick.
If you would like a crown for many years that does not change color or shape, then Zirconia crowns may be the right choice for you. Please speak with a dentist about all the available materials before making a selection. The choice of dental crown material is a huge decision that can mean the difference between being in comfort or being in discomfort.
With regular maintenance and upkeep, a dental crown can last many years. However, the opposite is also true. If you do not brush and floss after receiving a dental crown, then secondary decay and problems along the gum line may possibly occur.
Bleeding and inflammation of the gums, can signal a mild but fully reversible condition known as gingivitis. This is a natural response of the gums that can occur before and/or after receiving a crown, as the gums can become overly sensitive or irritated due to bacteria and/or trauma.
Regular and consistent brushing and flossing can prevent gingivitis around the crown from turning into a more serious condition known as periodontitis.
Periodontitis is one of the leading causes of crown failure, as bacteria under the gum can attack the underlying bone and cause tooth mobility. Therefore, it is important to visit the dentist every three to six months, to check for any gum problems. A scaling and root planing also known as a "deep cleaning" can reverse the problem of gingivitis and periodontitis around a crown. More advanced gum disease, which spreads into bone disease, has to be addressed with the prophylactic use of antibiotics such as Amoxicillin before a deep cleaning can be performed.
If one finds that the crown fits poorly or is overly bulky, then a dentist can adjust or change the crown in future dental visits. Small adjustments can sand down a crown that is overly large and wearing down the opposing teeth. The dentist may decide to polish the crown and paint it with a surface glaze after making any adjustments to the Zirconia using an electric drill.
The Zirconia can also be "stained" at the gum line to mimic the natural appearance of all of the other teeth. A variety of shades and color options are available, and the dentist will take time to show a catalog of different customized aesthetic designs and options.
If unsure or not ready, it is still advisable to make an appointment with the dentist for a crown consultation. The routine procedure during the appointment includes a clinical exam including radiographic x-ray examination and gum probing. Once the amount of remaining tooth structure is evaluated and determined, the dentist will let the patient know of their restorative options.
Sometimes a filling will suffice as the restoration of choice for a decayed or broken tooth. However, in times where there is not enough remaining tooth structure, a crown could be the only way to save the tooth. A dentist will have to evaluate the tooth after removing all diseased and broken tooth structure before coming up with a viable treatment plan.
It is always advisable to get another opinion from a dentist if unsure about your need for a dental crown. The restorative dentist may refer you to a gum specialist (called a periodontist) or an oral maxillofacial surgeon if it is an advanced case that needs more than one opinion. This depends on the severity of the case and is not always required.
In most straight forward cases, receiving a permanent dental crown takes approximately two or three dental visits. On the day of crown preparation, one may receive a temporary crown to go home with, until the dental lab has finished fabricating the permanent crown.
severity of the case and is not always required.
In most straight forward cases, receiving a permanent dental crown takes approximately two or three dental visits. On the day of crown preparation, one may receive a temporary crown to go home with, until the dental lab has finished fabricating the permanent crown.
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