A dental crown is a tooth-shaped "cap" that is placed over a tooth to cover the tooth and to restore its shape, size, strength as well as improving its appearance.
The crowns, when cemented into place, fully encase the entire visible portion of a tooth that lies at and above the gum line.
Dental crowns are fixed prosthetic restorations made to restore a damaged tooth to its original shape and size. They’re permanently cemented on teeth that have cracked, extensively decayed, or otherwise been damaged. Although they sometimes extend down onto the root surface, crowns essentially replace the outer aspect of the “crown” part of a natural tooth, so it makes sense that the restorations are called “crowns.”
Crowns are custom made to fit over each tooth. They can be made of a variety of different materials, including ceramics, porcelain-and-metal, gold, or resin.
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General information about Dental crowns
The following table describes general information about Dental crown including Dental crown cost in Iran, recovery time, and to name but a few.
$ 120 - 300
The same day
Back to Work
Duration of Operation
Minimum Stay in Iran
Before Dental Crown
Why would I need a dental crown?
A dental crown may be needed in the following situations:
. To protect a weak tooth (for instance, from decay) from breaking or to hold together parts of a cracked tooth.
. To restore an already broken tooth or a tooth that has been severely worn down.
. To cover and support a tooth with a large filling when there isn't a lot of tooth left.
. To hold a dental bridge in place
. To cover misshapen or severely discolored teeth
. To cover a dental implant
. To make a cosmetic modification
Who are the ideal candidates for a Dental Crown procedure?
Opting for a dental crowns procedure can sometimes require the person to change their food habits to a small extent if they are unfit for the procedure originally. Crowns require regular care and people who generally undergo procedure are:
. People with misshapen teeth that increases chances of tooth decay and is also causing intense pain.
. People with chipped and cracked teeth.
. People with a canal or pulp infection in their teeth.
. People who might have undergone severe oral trauma and need multiple crowns at the same time
. People who show intermediate to severe tooth erosion or loss of tooth enamel, which can be due to excessive consumption of acidic food like carbonated drinks.
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Who should avoid undergoing a Dental Crown procedure?
Individuals should avoid undergoing the procedure, if:
. They are chronic smokers; it can cause degeneration of the crown. In such cases, a metal crown would be the most appropriate.
. They do not possess oral hygiene; if oral hygiene isn’t practiced, the crown can easily get contaminated.
. They are prone to cavity formation and similar diseases; if cavity is formed behind the crown, the crown might ultimately have to be removed.
. They do not have strong gums and teeth; weak teeth or gums can cause unnecessary bleeding and swelling after the crown gets placed.
. They do not possess or are incapable of getting rid of unhealthy habits such as biting fingernails, clenching teeth and using teeth to open packaging.
What are the advantages and disadvantages of Dental Crowns?
. Permanent solution: The first benefit of a dental crowns that unlike dentures, dental crowns need not be removed regularly or cleansed separately. Regular brushing or floss can easily prevent infection around crowns.
. You can keep your original teeth: While applying a crown, only the weakened or damaged part of the tooth are removed. The crown is made to fit on top of the remnants of the actual tooth.
. Less invasive procedure: This treatment calls for a simple process that does not involve treating the nerves or gums. Thus, only the visible part of the tooth is operated upon, minimizing the possibility of complications and reducing recovery time for a dental crown.
. Aesthetic aspects: Dental crowns made up of porcelain match the size, color and shape of your original teeth but easily wear out. However, one can choose from a variety of other options like porcelain-fused-metal, zirconia, gold or silver crowns.
. Increased sensitivity: Unlike dentures or bridges, dental crowns do not fix nerve endings, which may lead to increased pain or reactivity to heat or cold. This sensitivity generally disappears in a few days. During this period, the patient may be given analgesics to ease the pain.
. Damage to underlying tooth: A crown which is not properly fixed or gets loose with time may lead to accumulation of bacteria under it leading to infection and damage to the tooth underneath. Proper cleaning of crown and use of antibiotics can nullify the infection.
. More tooth reduction: Some crowns need excessive trimming of the tooth structure to achieve a better fit. This leads to shedding of a large part of the natural tooth. Different material can be used for crown to avoid this.
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Risks and Complications
What problems could develop with a dental crown?
Dental crowns, just like other dental procedure, have their risks. Before you have a dentist insert a dental crown in your mouth, you should know what these risks are to make an informed treatment decision and prepare on how to prevent the risks. Below are some of the potential problems of dental crowns.
. Discomfort or sensitivity. Your newly crowned tooth may be sensitive immediately after the procedure as the anesthesia begins to wear off. If the tooth that has been crowned still has a nerve in it, you may experience some heat and cold sensitivity. Your dentist may recommend that you brush teeth with toothpaste designed for sensitive teeth. Pain or sensitivity that occurs when you bite down usually means that the crown is too high on the tooth. If this is the case, call your dentist. He or she can easily fix the problem.
. Chipped crown. Crowns made of all porcelain or porcelain fused to metal can sometimes chip. If the chip is small, a composite resin can be used to repair the chip with the crown remaining in your mouth. This is usually just a temporary fix. If the chipping is extensive, the crown may need to be replaced.
. Loose crown. Sometimes the cement washes out from under the crown. Not only does this allow the crown to become loose, it allows bacteria to leak in and cause decay to the tooth that remains. If a crown feels loose, contact your dentist's office.
. Crown falls off. Sometimes crowns fall off. Reasons include decaying of the underlying tooth and loosening of the cementing material used to place the crown. If your crown comes off, clean the crown and the front of the tooth. You can replace the crown temporarily using dental adhesive or temporary tooth cement that is sold in stores for this purpose. Contact your dentist's office immediately. He or she will give you specific instructions on how to care for the tooth and crown for the day or so until you can be seen for an evaluation. Your dentist may be able to re-cement the crown in place; if not, a new crown will need to be made.
. Allergic reaction. Because the metals used to make crowns are usually a mixture of metals, an allergic reaction to the metals or porcelain used in crowns can occur, but this is extremely rare.
. Dark line on crowned tooth next to the gum line. A dark line next to the gum line of your crowned tooth is normal, particularly if you have a porcelain-fused-to-metal crown. This dark line is simply the metal of the crown showing through. While not a problem in itself, the dark line is cosmetically unacceptable and your dentist may have to replace the crown with an all porcelain or ceramic one.
. Gum Irritation or Recession. Your dental crown may irritate your gums or even increase your risk of gum recession. Gum irritation arises because the crown material terminates just above the gums, which means the crown may rub on your gums.
Gum irritation increases the risk of gum disease, particularly if you do not maintain good oral hygiene. Due to this, your gums may recede away from your tooth and expose the tooth roots.
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How does a dental crown help?
Crowns restore the shape, strength, functionality, and appearance of a damaged tooth. After you have one placed, you’ll be able to use your tooth to chew again without risking damage to what’s underneath it. Crowns protect the vulnerable part of the tooth by physically holding it together and shielding it from damage.
Crowns are also important to restoring and maintaining the structural integrity of your mouth and bite. When a tooth decays or breaks, it leaves a gap. That gap can create further problems when it interferes with your bite or when other teeth migrate into it. By filling that gap, crowns restore your mouth’s proper structure. Last but not least, crowns also restore the appearance of your mouth, as they are mostly indistinguishable from natural teeth.
What to do before a Dental Crown procedure?
. The patient must submit their complete medical history, including prescription and over-the-counter drugs, vitamins and supplements etc. to the operating surgeon for a complete analysis of the patient’s dental condition.
. Patients should not consume food or any drinks about 6 to 8 hours before surgery.
. Before surgery, the doctor will get impressions of your teeth on moulds so that a perfect crown can be fixed.
During Dental Crown
How do dental crowns work?
Crowns fit on teeth much the same way sewing thimbles fit on fingertips – they fit over the top of a tooth and protect what’s underneath it. They’re cemented in place and, once affixed, act as a new top for the tooth while holding it together and keeping it from breaking apart.
Crowns are constructed of very resilient and durable materials. They’re designed to endure the traumas of chewing just as effectively as the rest of your teeth. Think of a crown as a cover for the top (visible) portion of your tooth. After the dentist cements the crown to your damaged tooth, it essentially becomes a part of that tooth.
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How are dental crowns installed?
What steps are involved in preparing a tooth for a crown?
First, your dentist will apply anesthetic to numb the tooth getting the crown and the surrounding gum tissue. Then, they’ll use a dental drill and an abrasive bur to remove the outer surface of the tooth on the top and all sides, creating enough room for the crown to be placed. If there’s not enough of the tooth left to support the crown, they may first add a crown buildup to create a sound foundation on which the crown would sit. The dentist will then make an impression of the tooth using dental impression paste, putty, or a digital scanner. They send this impression to a dental laboratory to actually make the crown.
It’s not good for the tooth to leave it uncovered over that time, so your dentist will install a temporary crown during your initial visit. When the permanent crown arrives back, you’ll have a second appointment with the dentist to install it. The temporary crown will be removed and the new crown will be adjusted to properly fit your tooth and bite. Dentists then use a special cement to affix the crown to the tooth. When the cement cures, the crown is firmly attached to the tooth.
Typically, you will get the crown within 2 sessions. Every session takes about 1-2 hours. For the whole procedure, you’ll need to stay in the country for about 3 days.
What types of crowns are available?
Permanent crowns can be made from stainless steel, all metal (such as gold or another alloy), porcelain-fused-to-metal, all resin, or all ceramic.
. Stainless steel crowns are prefabricated crowns that are used on permanent teeth primarily as a temporary measure. The crown protects the tooth or filling while a permanent crown is made from another material. For children, a stainless steel crown is commonly used to fit over a primary tooth that's been prepared to fit it. The crown covers the entire tooth and protects it from further decay. When the primary tooth comes out to make room for the permanent tooth, the crown comes out naturally with it. In general, stainless steel crowns are used for children's teeth because they don't require multiple dental visits to put in place and so are more cost- effective than custom-made crowns and prophylactic dental care needed to protect a tooth without a crown.
. Metals used in crowns include alloys that have a high content of gold or platinum, or base-metal alloys (for example, cobalt- chromium and nickel-chromium alloys). Metal crowns withstand biting and chewing forces well and probably last the longest in terms of wear down. Also, metal crowns rarely chip or break. The metallic color is the main drawback. Metal crowns are a good choice for out-of-sight molars.
. Porcelain-fused-to-metal dental crowns can be color matched to your adjacent teeth (unlike the metallic crowns). However, more wearing to the opposing teeth occurs with this crown type compared with metal or resin crowns. The crown's porcelain portion can also chip or break off. Next to all-ceramic crowns, porcelain-fused-to-metal crowns look most like normal teeth. However, sometimes the metal underlying the crown's porcelain can show through as a dark line, especially at the gum line and even more so if your gums recede. These crowns can be a good choice for front or back teeth as well as long bridges where the metal is needed for strength.
. All-resin dental crowns are less expensive than other crown types. However, they wear down over time and are more prone to fractures than porcelain-fused-to-metal crowns.
. All-ceramic or all-porcelain dental crowns provide better natural color match than any other crown type and may be more suitable for people with metal allergies. All-ceramic crowns can be used for front and back teeth.
. Temporary versus permanent. Temporary crowns can be made in your dentist's office, whereas most permanent crowns are made in a dental laboratory. Typically, temporary crowns are made of an acrylic-based material or stainless steel and can be used as a temporary restoration until a permanent crown is constructed by a lab.
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After Dental Crown
After-care instructions for temporary dental crowns
Because temporary dental crowns are just that -- a temporary fix until a permanent crown is ready -- most dentists suggest that a few precautions. These include:
. Avoid sticky, chewy foods (for example, chewing gum, caramel), which have the potential of grabbing and pulling off the crown.
. Minimize use of the side of your mouth with the temporary crown. Shift the bulk of your chewing to the other side of the mouth.
. Avoid chewing hard food (such as raw vegetables), which could dislodge or break the crown.
. Brush as usual, but floss with care. When flossing, remove floss from the side of the tooth.
. Avoid chewing for at least an hour.
. Use a desensitizing toothpaste if teeth are sensitive to heat, cold, or pressure, but contact our office if sensitivity increases or persists beyond a few days.
. Contact us if the crown comes off, and save it so that it can be recemented.
. It is important that the temporary crown stay in place to ensure the proper fit of the permanent crown.
What is the post-operative care for a Dental Crown procedure?
. There might be some pain after the permanent crown is placed which will come as a surprise to people who had a temporary one. This is because, the permanent crown comes directly in contact with the nerve. The doctor will prescribe appropriate medication for this. The patient must not take more medicine than prescribed.
. Smoking should be stopped for a few days as Nicotine in the blood inhibits healing and prolongs recovery time.
. Alcohol should be avoided while on medication as the medicines might react with alcohol and present a toxic result.
. On the first day after surgery, after care measures are important. A cold compress should be applied to the appropriate side of the face to minimize swelling.
What is the diet for a Dental Crown procedure?
. Hot liquids like Coffee and Tea must be avoided for at least 3 days after surgery as they can trigger sensitivity. Patients can have cold soup which does not have crunchy vegetables like carrots.
. Hard foods and chewing gums should be avoided until the crown sets properly. Foods that are easy to chew such as pasta, bananas and applesauce are advised.
How long do dental crowns usually last?
On average, dental crowns last between five and 15 years. The life space of a crown can depend on the amount of “wear and tear” the crown is exposed to, how well you follow oral hygiene practices and personal mouth-related habits. These mouth-related habits can include things like:
. Grinding or clenching your teeth.
. Chewing ice.
. Biting your fingernails.
. Using your teeth to open packaging.
Does a crowned tooth require any special care?
A crowned tooth doesn’t need any special care. However, the underlying tooth still needs to be protected from decay or gum disease. Because of this, you should continue to follow good oral hygiene practices. These practices include brushing your teeth twice a day and flossing once a day — especially around the crown area where the gum meets your tooth. Also, avoid biting on hard surfaces with porcelain crowns (for example, chewing ice or popcorn hulls) to prevent cracking the porcelain.
Dental Crown Cost
How much do crowns cost in Iran?
Cost of crowns vary depending on what part of the country you live in and on the type of crown selected (for example, porcelain crowns are typically more expensive than gold crowns, which are typically more expensive than porcelain-fused-to-metal crowns). Generally, the cost of per crown in Iran is between $ 120-300.