A dental crown is an artificial cap placed over a damaged, weak, or root-canaled tooth to protect its structure and improve its strength and appearance. Dental crowns are made in various types such as zirconia, all-ceramic, Emax, and PFM, and are ready for final placement after undergoing steps including examination, tooth preparation, impression-taking or digital scanning, and crown fabrication.
The lifespan of a dental crown is typically between 10 and 15 years, but factors such as the crown material, oral hygiene, gum health, chewing habits, and patient care can all affect its durability.
Not all root-canaled teeth absolutely require a crown, but most teeth that have lost significant structure are usually protected with a crown to prevent fracture and increase strength.
Yes, the tooth under the crown can still develop decay if oral hygiene is not maintained. Brushing, flossing, and regular dental checkups help prevent this issue.
Yes, a dental crown can be replaced if it is damaged, reaches the end of its useful life, or if problems develop in the tooth beneath it. After examining the tooth, the dentist will decide whether to replace or repair the crown.
In the first few days after crown placement, it is best to avoid very hard, sticky, or chewy foods such as ice, hard candy, and tough nuts to prevent damage to the crown.
High-quality crowns like zirconia and ceramic typically do not discolor, but plaque buildup on the crown surface or color changes in the surrounding teeth may cause a noticeable difference in appearance.
Dental crown placement is typically done in two or more sessions. The first session involves examination, preparation, and impression-taking, and after the crown is fabricated, the final placement is done in the next session.
A dental crown is used when the tooth structure is too weak or damaged for standard restorations like fillings to provide sufficient strength and function. In such cases, the crown acts as a protective cover over the tooth, increasing strength, preventing fracture, and improving the tooth’s appearance. Crowns are also recommended in other necessary situations, including:
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Dental crowns are classified into different types based on their material and composition. Choosing the best type of dental crown depends on factors such as the tooth’s location, extent of damage, aesthetic requirements, needed durability, and the patient’s budget. The most common types of dental crowns include zirconia crowns, all-ceramic (Emax) crowns, PFM crowns, metal crowns, and composite crowns, each of which is described separately below:
Zirconia crowns are one of the most popular types of dental crowns, made from a highly durable and biocompatible material. In addition to high strength, this type of crown has a natural, tooth-like appearance and is suitable for both front and back teeth.
All-ceramic crowns are mostly used for front teeth due to their translucency and high similarity to natural teeth. Emax crowns are a type of all-ceramic crown that offer exceptional aesthetics and are considered an excellent option for smile design enhancement.
A PFM crown is a combination of an inner metal layer and an outer ceramic coating. This type of crown offers good durability and has been a common choice for restoring damaged teeth for years, but it is less aesthetic compared to all-ceramic and zirconia crowns.
A metal crown is made from metal alloys and has very high resistance to chewing pressure. Due to its unnatural appearance, it is typically used for posterior (back) teeth that are less visible.
A composite crown is made from resin materials similar to dental composite and generally has a lower cost. However, its durability and lifespan are less than those of ceramic and zirconia crowns.
In the table below, we have compared the different types of crowns so that you can make a fully informed choice.
| Crown Type | Aesthetics | Approximate Lifespan | Application |
|---|---|---|---|
| Zirconia | Very natural | 10–15+ years | Front and back teeth, root-canal-treated teeth |
| Emax | Excellent | 10–15 years | Front teeth, smile aesthetics |
| PFM | Moderate to good | 10–15 years | Back teeth |
| Metal | Low | 15+ years | High chewing pressure |
| Composite | Good | 5–7 years | Temporary and low-pressure use |
In response to this question, it should be said that the best dental crown is not the same for everyone. For front teeth, Emax and all-ceramic crowns are usually chosen due to their high aesthetics, while for back teeth that withstand greater chewing pressure, zirconia or PFM can be more suitable options. The final choice should be made after examining the tooth condition, gum health, and consulting with the dentist.
At King Dental Clinic, the dental crown process begins with a thorough examination of the tooth condition and designing a suitable treatment plan. In the initial consultation, the dentist checks root health, the extent of tooth damage, gum condition, and the patient’s need for a crown to choose the best treatment method.
After the initial assessments and if necessary, X-rays are taken to accurately evaluate the internal condition of the tooth and its structural strength. At this stage, the appropriate crown type, such as zirconia, Emax, or other options, is selected based on the tooth’s condition and the patient’s aesthetic expectations.
In the next step, the tooth is prepared for the crown. In this process, a specific amount of the tooth surface is trimmed to create enough space for the crown to fit precisely onto the tooth.
After tooth preparation, impression-taking or digital scanning is done to record the dimensions, shape, and required color for fabricating the crown. The information is sent to the laboratory, and a custom crown is made to match the patient’s oral and dental structure.
Until the dental crown is ready in Saadat Abad, after referral to the laboratory, a temporary crown is placed on the tooth, if necessary, to protect the tooth and allow the patient to maintain normal chewing and speaking functions.
After the final crown is ready, Dr. Meeraj Parhizkari checks the fit, color, shape, and placement of the crown. Once final approval is given, the crown is permanently cemented onto the tooth using special materials, and necessary adjustments are made to ensure comfort while chewing.
At the end of the treatment, the patient is given instructions on how to care for the crown, maintain oral hygiene, and extend its lifespan. Regular check-ups can also help preserve the health of the crown and surrounding teeth.
| Feature | Dental Crown | Dental Veneer | Composite Bonding |
|---|---|---|---|
| Primary purpose | Strengthening and protecting weak, damaged, or root-canaled teeth | Improving smile aesthetics and changing the shape, color, and appearance of teeth | Enhancing tooth appearance and correcting minor cosmetic issues |
| Tooth reduction | Requires more reduction to create suitable space for the crown | Requires very little reduction, or in some cases none | Usually done without reduction or with minimal reduction |
| Strength and durability | Very high, suitable for weak teeth | High, but mostly used for aesthetic purposes | Lower than crowns and ceramic veneers |
| Material | Zirconia, ceramic, Emax, PFM, or metal | Usually pressed ceramic such as Emax and porcelain | Composite resin materials |
| Appearance and aesthetics | Natural and beautiful, especially in zirconia and all-ceramic types | Very natural and translucent, close to natural teeth | Good aesthetics, but usually less translucent than veneers |
| Approximate lifespan | About 10–15 years or more with proper care | About 10–15 years with proper maintenance | About 5–7 years with proper care |
| Suitable for | Broken, decayed, weak, or root-canaled teeth | Healthy teeth with cosmetic issues such as discoloration or improper shape | Correcting stains, small chips, gaps between teeth, and minor discoloration |
| Treatment cost | Medium to high, depending on the crown type | Usually higher than composite | More economical than veneers and crowns |
| Repairability | Can be repaired or replaced in some cases | Usually requires replacement if damaged | Generally easier to repair |
| Effect on tooth structure | Covers a larger portion of the tooth structure | Primarily placed on the front surface of the tooth | A thin layer added to the tooth surface. |
The cost of a dental crown depends on various factors and is not the same for everyone. The most important factors determining the price of a dental crown include the following:
One of the common issues after crown placement is increased sensitivity to cold and hot temperatures. This sensitivity is usually normal in the first few days or weeks, but if it persists or becomes severe, it requires a dental examination.
In some cases, the patient may feel pain or pressure when chewing after crown placement. This issue can be caused by the crown being too high, improper bite adjustment, or a problem with the tooth underneath the crown.
If oral hygiene is not properly maintained, plaque can accumulate around the crown and cause decay in the remaining tooth structure. Regular brushing and flossing play an important role in preventing this issue.
Sometimes, due to weak crown cement, trauma, excessive pressure, or decay underneath, the crown may become loose or detach from the tooth. In such cases, you should see a dentist for examination and recementation.
Some crowns may crack or fracture due to excessive pressure, teeth grinding (bruxism), or chewing hard substances. Using high-quality crowns and a nightguard in patients with bruxism can reduce the likelihood of this issue.
If the crown is not properly designed or placed, or if oral hygiene around it is not maintained, it may cause gum redness, inflammation, or sensitivity.
In some cases, mismatched color or shape of the crown with natural teeth can cause aesthetic dissatisfaction. Choosing the right crown material and precise design can prevent this issue.
Dental crowns have a specific lifespan and over time may need replacement due to wear, damage, or changes in the underlying tooth condition. Proper care can extend the crown’s lifespan.
If you experience any of these signs, you can contact King Dental for consultation and an immediate visit at +989002012050 and +982126619216.
