What are Dental Crowns?
A full dental crown covers the entire tooth and will restore a broken, heavily filled or cracked tooth to its original size, shape and tooth color.
The materials that are used to create dental crowns are substantially stronger than fillings and therefore less likely to break.
Benefits of Dental Crowns
- Replaces missing teeth
- Offers support to misshapen teeth or badly broken teeth
- for tooth may have been weakened by having a very large filling
Depending on esthetic demands, strength requirements, material durability, and restorative space available, your dentist will recommend the type of dental crown to be used.
Different types of crowns
Porcelain fused to Metal: This is what the majority of crowns are made from. A precious metal base is made and porcelain is then applied in layers over it. Provide for a strong, durable, and esthetic treatment option.
Porcalain crowns: Porcelain crowns match the color of teeth perfectly and that is one of the chief reasons for its popularity. Porcelain crowns are most often used for front teeth.
Zirconium crowns: The material Zirconium Oxide is ceramics, that has special mechanical capacity according to other ceramics. Crowns made of zirconium oxide can hardly be distinguished from natural teeth.
How is a tooth prepared for a crown?
Fitting a crown requires at least two visits to our office. Initially, we will remove decay, shape the tooth and will make a molded impression of the prepared tooth to send to the dental laboratory.
Does it hurt to have a tooth prepared for a crown?
No. A local anesthetic is used and the preparation should feel no different to that of a filling. If the tooth does not have a nerve and a post crown is being prepared, then local anesthetic may not be needed.
How to take care of your crowns?
Dental crowns require the same level of care and attention as your natural teeth.
- Brush your teeth after each meal and before bedtime, especially at the gum line.
- Floss at least once or twice a day.
- Rinse with fluoride rinse before bedtime.
- Visit your dentist for annual check-up.
The life of a crown will depend on how well it is looked after. The crown itself cannot decay, but decay can start where the edge of the crown joins the tooth. It is very important to keep this area as clean as your other teeth, or decay may occur which could endanger the crown.
Perfect aesthetics, superior strength.
Zirconium abutments were designed specifically for creating optimum aesthetics.
Zirconia is extremely strong and tooth-coloured.
Indications: Fixed restorations, single crowns and bridgework. Especially recommended in the front of the mouth where the teeth are prominent. In case of gum recession, the zirconium abutment will not become visible when a little gap appears between the gum and the crown.
Standard titanium abutment
A standard titanium abutment is used when a porcelain fused to metal crown is placed onto the implant.
This combination is very strong and more often used on the back teeth.
Types of Dental Crowns
Dental crowns are made of metal, ceramic, or porcelain fused to metal. The type of crown utilized during your dental crown procedure will depend on your unique needs and goals, as well as the recommendation of your dentist.
Porcelain-fused-to-metal dental crowns
Porcelain-fused-to-metal dental crowns are somewhat of a hybrid between metal crowns and porcelain crowns. First the dental technician makes a shell of metal that fits over the tooth. A veneering of porcelain is then fused over this metal (in a high heat oven), giving the crown a white tooth-like appearance.
Porcelain-fused-to-metal dental crowns can be a good choice for either front or back teeth. These crowns are strong enough to withstand heavy biting pressures and at the same time can have an excellent cosmetic appearance.
Full-porcelain dental crowns
Some dental crowns are fabricated in a manner where their full thickness is porcelain (dental ceramic). These crowns can possess a translucency that makes them the most cosmetically pleasing of all of the different types of dental crowns.
Although they can be very life like in appearance, the overall strength of all-porcelain dental crowns is less than other types of crowns. While they can be a good choice for front teeth, due to the hefty chewing and biting forces that humans can generate, all-porcelain dental crowns may not be the best choice for back teeth. Your dentist's judgement will be required on this point.
Superior aesthetic and functional results with metal-free material.
Zirconium is rapidly becoming the material of choice for dental crowns. Zirconium dioxide has been used in dentistry for the past 10 - 15 years.
Due to the strength of Zirconium, we can now make crowns and bridgework without needed to add metal and so these new crowns are virtually impossible to distinguish from 'real teeth' - except of course we can control their size, shape and color and thereby provide a perfect, yet natural looking smile.
Its strength and durability have been proved. Additionally it is fully biocompatible so there are now risks of allergic reactions.
It is a lustrous, gray-white, strong transition metal that resembles titanium.
It's a translucency is very similar to a natural tooth. Light is reflected from a Zirconium crown in much the same way.
This means that Zirconium will produce the best aesthetic effect, which is important if your new crowns are to be at the front. It is particularly the case when the crowns will be seen beside natural teeth.