Dental crowns are an opportunity to improve the beauty and function of teeth. This medical procedure allows people to change their teeth to a better shape, better color, and in some cases even more beautiful than natural teeth. Here, we will introduce metal crowns or all-ceramic and zirconia crowns. This article will help you get the most information about the types of dental crowns, the steps involved, their advantages and disadvantages, and the factors that affect the longevity of crowns.
Introduction to Dental Crowns
A dental crown is a type of dental prosthesis that is used to cover and protect a damaged tooth or make it more beautiful. These crowns are installed on the teeth and they act like a protective cap for the teeth. In addition to improving the appearance, they also improve the strength and function of the teeth.
Dental crowns are custom-made for each individual. This prosthesis is used to replace the natural tooth crown. Dental crowns are made by dentists in well-equipped laboratories using special materials and equipment. The main goal in making dental crowns is to create a prosthesis with the same appearance and function as the person's natural tooth crown. This dental crown is placed on the root of the tooth and covers the entire tooth.
When to Install a Dental Crown
In some cases, it is mistakenly assumed that after root canal treatment, a dental crown must be installed. These people may not pay attention to this point or may not have accurate information about other methods of tooth restoration. It should be noted that dental crowns are a relatively invasive restorative method in order to preserve the tooth tissue.
In the dental crown method, the dentist has to shave off part of the tooth tissue, even if it is healthy, in order to attach the crown to it. This shaving of tooth tissue causes the loss of part of the original tooth. In fact, nothing replaces the original tooth tissue and it is better to preserve what can be preserved from the remaining tooth tissue.
Fortunately, there are more conservative methods for restoring and reconstructing teeth. Methods such as tooth buildup, ceramic and composite laminates, and composite veneers are among these options. These procedures allow the dentist to restore and improve teeth without having to remove too much tooth tissue.
Before undertaking any restorative procedure, it is best to evaluate and consider more conservative options. These options may be more appropriate and less invasive, and they will help preserve the tooth and its tissues as much as possible. In cases where the tooth tissue is severely damaged and cannot be restored, dental crowns may be considered as a last resort.
The Best Time to Get a Dental Crown
Extensive Dental Fractures
In cases where a tooth or teeth have been damaged by a fracture and cannot be repaired by other methods, dental crowns can be used. The fact is that a large number of dental fractures can be repaired using restorative methods such as composite and dental build-up, without the need to cut too much of the tooth and destroy the remaining healthy tooth tissue.
Extensive and Deep Cavities
In some cases, severe and extensive decay damages the tooth tissue to such an extent that restoration is not practical. In this case, a dental crown can be an option for tooth reconstruction. Often, root canal treatment, dental posts, and even crown lengthening surgery are required in these possible cases, and in addition, a crown is placed on the tooth.
Dental Crowns Implants
In cases where dental implants have been placed and a period of time is necessary for the implant fixture to heal and strengthen, dental crowns are placed on the implant fixture.
Dental Bridges
When a person has lost one or more teeth and cannot use implants due to obstacles, and at the same time, nearby teeth also need to be restored due to decay or old damage, a dental bridge can be used as an option. These bridges are permanently attached to nearby teeth and fill the empty space without teeth.
A dental crown, as a dental prosthesis that is personalized for each individual, is prepared by shaving off a part of the existing tooth. These procedures allow the teeth to become closer to the shape and function of natural teeth.
The options for restoring your tooth and using crowns or other methods ultimately depend on the specific condition of your tooth and your dentist's recommendations.
Types of Crowns
Stainless Steel Crowns
Stainless steel crowns are often used as prefabricated crowns and are placed temporarily over permanent teeth. These crowns serve as a temporary solution to protect or fill the tooth, while permanent crowns are made of a different material.
Stainless steel crowns are especially common in children. They cover the entire tooth and help prevent further decay in baby teeth. As the baby tooth moves out of the gum (until the permanent tooth erupts), the tooth framework naturally comes out with it.
Metal or All-Metal Crowns
There are several types of metal crowns, including:
High-Gold or Platinum Alloys:
These types of alloys are used for crowns and are very durable. Gold and platinum are the main materials used to make crowns.
Base Metal Alloys such as Cobalt-Chromium and Nickel-Chromium Alloys:
These types of crowns are also made of durable materials and are the most durable against pressure and wear. These crowns are typically used for molars and back teeth (teeth inside the mouth). They almost never crack or break. However, the downside of these crowns is their metallic color and their high price. If the cost of placing a metal crown is manageable, this type of crown may be considered as a temporary option for crowns on molars that are out of sight.
Metal-ceramic (PFM) crowns
Metal-ceramic (PFM) crowns have a metal core covered with a layer of ceramic (porcelain). These crowns can match the color of adjacent teeth. They bond well to teeth and mimic the shape of natural teeth. However, one of the drawbacks of these crowns is that they are sensitive to wear and tear. Also, the ceramic may crack or break, and the metal underneath may show as a dark line, especially if the gums have receded.
All-Resin Crowns
These crowns are made of polymer resins and are usually less expensive. However, one of the drawbacks of these crowns is that they wear out over time and are more prone to breakage than other crowns.
All-ceramic crowns
All-ceramic crowns (all-porcelain) are made of metal-free ceramic and look more like natural teeth. These crowns are suitable for people who are allergic to metal. They are usually chosen as crowns for front teeth. They can also be used for back teeth.
Zirconia crowns
A zirconia crown is an all-ceramic crown reinforced with a zirconium frame. This crown is usually suitable for front teeth. The zirconium frame of these crowns has a strong and noticeable strength and has an aesthetic appearance.
Temporary crowns
Temporary crowns are usually made in the dentist's office and are made of acrylic-based materials or stainless steel. These types of crowns are used as a temporary restoration until the permanent crown is ready.
Instant Dental Crown
Instant dental crowns are a type of removable veneer or laminate that is used temporarily for all teeth in a jaw. These crowns do not stick to the teeth and are very thin. Usually, people who do not want to undergo specialized treatment or pay a high cost use instant dental crowns.
Choosing the best dental crown
According to various criteria such as appearance, strength, cost, and personal needs, the appropriate type of dental crown can be chosen. However, currently, in Iran, ceramic dental crowns and metal-ceramic dental crowns are considered the main and appropriate options in most cases. These types of crowns provide a combination of beauty, strength, and reasonable price.
It should be noted that the best type of dental crown depends on your needs and preferences. For more detailed advice and choosing the best type of dental crown for you, you can consult your dentist.
Steps to make a dental crown
Step 1: Initial preparation
Preparation of the teeth:
The teeth must be prepared after the initial treatments. This includes grinding the chewing surface and all around the teeth.
Mask of the teeth:
A mold of the desired tooth is made using special materials for transfer to the laboratory. A mold of the opposite jaw is also prepared.
Step 2: Trying on the crown substructure
Testing the substructure:
The frame or substructure of the crown is placed on the tooth and its match with the tooth is checked. At this stage, the color of the final crown is also determined.
Step 3: Adding the ceramic layer
Adding the ceramic layer: The ceramic layer is added to the substructure and the crown is completed. The size, shape, color, and contact areas with adjacent and opposing teeth are checked.
Step 4: Installing the crown
Installing the crown:
At this stage, the crown is placed in the furnace for the final operation. Finally, the crown is bonded to the teeth with temporary or permanent cement.
The steps of a dental crown are performed in this manner until the final crown is bonded to the teeth. The choice of the type of crown and the exact details of these steps depend on the needs and recommendations of the dentist.
Lifespan of a dental crown
Dental crowns usually have a variable lifespan and can vary depending on various factors.
Factors that can affect the lifespan of dental crowns include:
Type of crown:
The type of material used in the crown has a great impact on its durability. Some crowns, such as all-metal crowns, tend to last longer.
Dental care and hygiene:
Regular maintenance and care of teeth covered with dental crowns can help extend their lifespan. Brushing your teeth, eating sweets, and visiting the dentist regularly can all play an important role.
Pressure and use of teeth:
The function of the teeth and the amount of pressure they are subjected to also affect them. For example, teeth that are subjected to much more pressure (such as molars) may wear out more quickly.
Aesthetic factors:
If dental crowns are used as a crown for the front teeth, aesthetic factors such as changing the color or shape of the crown can have an effect.
Number and position of teeth:
The number of teeth covered is an effect. If the crowns are installed on the back teeth and in different positions, they are more likely to last longer.
In general, all-metal dental crowns are the most durable, while all-ceramic crowns are also effective and more beautiful. Choosing the type of crown and observing dental care can help prolong the life of the crowns.
Fracture of a dental crown
Fracture of a dental crown is a common cause for concern for people, and its causes can be traced back to two main factors. The first factor is related to the steps of manufacturing and installing the crown in the laboratory. If the specialized tips in the crown manufacturing process are not carefully followed, you will likely encounter problems such as chipping or damage to the crown in the future.
The second factor that can lead to dental crown breakage is the patient's lack of proper dental health care. People should follow the necessary care and dental recommendations to prevent these problems from occurring. Consuming hard foods and not following the dental crown care tips may lead to its breakage.
If the crown does break, the best thing to do is to visit the treating dentist to check the condition of the crown. In cases where the fracture is minor, the crown may be repaired. For minor repairs, the same material as the crown is usually used. However, if the damage is so extensive that repair is not possible, the crown must be completely replaced.
Important lessons to keep in mind are that ignoring a cracked crown and postponing a visit to the dentist may lead to problems such as plaque buildup, gum disease, tooth decay, damage to neighboring teeth, and other dental problems.
Repairing multiple teeth that are close together is usually done using dental crowns instead of building up. In these cases, impressions (molds) are taken of the neighboring teeth that need crowns and crowns are made separately. These crowns are then attached to the teeth in need by the dentist in another appointment.
Conclusion
Dental crowns are a reliable and effective solution in the field of dentistry that allows people to repair and improve their teeth, as well as increase the beauty and strength of the teeth. This method, depending on the type of crown and proper care, can help keep the teeth fresh and healthy for a long time.
But in addition to that, it is important for people to pay attention to regular care of their teeth and the necessary information in this field to prevent problems such as breaking the dental crown. Ultimately, by consulting a dentist and following the correct steps during the crowning process, people can achieve a beautiful smile.
Frequently Asked Questions
1.What are dental crowns?
A dental crown is a dental prosthesis that is placed on the teeth. This prosthesis is used to repair damaged teeth, correct the shape or color of the teeth,and enhance the beauty of the smile.
2.What materials are used to make dental crowns?
Different materials are used to make dental crowns. These include ceramics, various metals, or combinations of ceramic and metal materials. The type of material used is determined by the needs and preferences of the individual and the treating dentist.
3.What are dental crowns useful for?
Dental crowns are useful for a variety of purposes. These include repairing damaged or broken teeth, correcting the shape and size of teeth, covering discolored teeth, correcting gaps between teeth, and improving the aesthetics of a smile.
4.How long does it take to install dental crowns?
The time it takes to install dental crowns depends on several factors, including the number of teeth, the type of crown, and the preparation steps. Typically, several dental appointments are required, and it usually takes a few weeks for the crowns to be prepared and installed.
5.Are dental crowns painful?
The process of installing dental crowns is often painless. If a tooth needs to be extracted, there may be some pain for a short time after the extraction, but this pain usually subsides naturally after a short time.
6.How to care for dental crowns?
To care for dental crowns, you need to maintain regular dental hygiene. This includes brushing your teeth twice a day, flossing, and visiting your dentist regularly for checkups.
7.What can damage dental crowns?
Factors such as excessive pressure, chewing hard objects, lack of regular care, and improper brushing can damage dental crowns.
