If your dentist recently told you that you need a crown, you probably have questions. What is the temporary crown for? How is it different from the permanent one? And why do you need both?
Understanding the difference between temporary and permanent crowns helps you know what to expect at each stage of treatment, and how to take care of your teeth along the way. In this guide, we break down the materials, purpose, lifespan, and care instructions for both types of crowns so you can walk into your appointment with confidence.
If you are already noticing symptoms like persistent tooth pain, sensitivity, or a cracked tooth, our guide on signs you might need a dental crown can help you figure out whether it is time to see your Irvine dentist.
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What Is a Dental Crown?
A dental crown is a custom-made cap that fits over the entire visible portion of a tooth. It restores the tooth’s shape, size, strength, and appearance after damage from decay, fractures, or certain dental procedures.
Crowns are one of the most common restorative treatments in dentistry. They are used after root canals, to protect cracked teeth, to cover large fillings, and to improve the look of severely discolored or misshapen teeth.
The crown process typically involves two appointments. During the first visit, your dentist prepares the tooth and places a temporary crown. During the second visit, the temporary is removed and the permanent crown is bonded into place. Each type of crown serves a specific role in this process.
What Is a Temporary Crown?
A temporary crown is a short-term restoration that protects your prepared tooth while a dental lab fabricates your permanent crown. After your dentist reshapes the tooth and takes impressions, the temporary crown is placed to cover the exposed area and hold space for the final restoration.
Temporary crowns are made chairside in your dentist’s office using materials like acrylic resin, composite resin, or prefabricated stainless steel shells. According to Dentaly, these provisional restorations protect remaining tooth structure, prevent shifting of adjacent teeth, and maintain your ability to eat and speak during the waiting period.
Most patients wear a temporary crown for two to three weeks. That is roughly how long it takes for a dental lab to fabricate a custom permanent crown from the impressions your dentist sends.
Why Temporary Crowns Are Necessary
It is tempting to think of the temporary crown as an optional step, but it plays several important roles. Without it, the prepared tooth would be exposed to bacteria, temperature changes, and pressure from chewing. The exposed dentin underneath your enamel is far more sensitive than the outer layer of your tooth, so leaving it unprotected would likely cause significant discomfort.
Temporary crowns also prevent neighboring teeth from shifting into the space. Even small amounts of tooth movement can change your bite alignment and affect how the permanent crown fits when it arrives from the lab.
What Is a Permanent Crown?
A permanent crown is the long-term restoration that replaces your temporary. It is custom-designed based on detailed impressions or digital scans of your tooth, then fabricated in a dental lab to match the exact shape, size, and color of your natural teeth.
Permanent crowns are made from more durable materials than their temporary counterparts. The most common options include all-porcelain or ceramic, zirconia, porcelain-fused-to-metal (PFM), and gold or metal alloy. Each material has specific advantages depending on the tooth’s location, the amount of biting force it handles, and your aesthetic preferences.
The Cleveland Clinic notes that dental crowns typically last between five and 15 years, though many last significantly longer with proper care. Zirconia and gold crowns tend to be the most durable, with some lasting 20 years or more.
Key Differences Between Temporary and Permanent Crowns
While both types of crowns cover a prepared tooth, they differ in nearly every other way. Here is how they compare across the categories that matter most to patients.
Materials
Temporary crowns are made from acrylic, composite resin, or stainless steel. These materials are easy to shape and quick to set, which allows your dentist to fabricate them in a single appointment. However, they are not designed to withstand long-term wear.
Permanent crowns use stronger, longer-lasting materials. All-ceramic and porcelain crowns closely mimic the translucency and color of natural teeth, making them a popular choice for front teeth. Zirconia is known for its strength and is often used for back teeth that handle heavy chewing forces. Gold and metal alloy crowns are the most durable option overall, though they are less popular for visible teeth due to their metallic appearance. PFM crowns combine a metal base with a porcelain outer layer, offering a balance of strength and aesthetics.
Fit and Customization
One of the biggest differences is precision. Temporary crowns are generic or semi-custom. Your dentist shapes them quickly to approximate the contour of your tooth, but they are not designed to be a perfect match.
Permanent crowns are fully custom. A dental lab uses your impressions or digital scans to create a crown that matches the exact anatomy of your tooth, your bite alignment, and the shade of your surrounding teeth. This is why permanent crowns feel more natural and comfortable once they are placed.
Durability and Lifespan
Temporary crowns are designed to last a few weeks. They can hold up for longer in some cases, but the materials are not meant for extended use and are more prone to chipping, cracking, or loosening over time.
Permanent crowns are built for years of daily use. According to the Cleveland Clinic, most crowns last between five and 15 years, and some can last upwards of 30 years with proper care and maintenance. Material choice plays a role too. Gold and metal alloy crowns tend to outlast ceramic and porcelain options, though modern zirconia crowns have narrowed that gap significantly.
Adhesion
Temporary crowns are attached with temporary cement. This is intentional. Your dentist needs to be able to remove the temporary easily when it is time to bond the permanent crown. The trade-off is that temporary crowns can sometimes come loose, especially if you eat sticky or hard foods.
Permanent crowns are bonded with strong dental cement that creates a lasting seal. Once a permanent crown is properly cemented, it should stay firmly in place for years.
Appearance
Temporary crowns are functional, but they are not designed to look perfect. The color match may be approximate, and the surface finish will not have the same luster as a permanent restoration.
Permanent crowns, especially those made from porcelain or ceramic, are designed to blend seamlessly with your natural teeth. Your dentist and the dental lab work together to match the shade, shape, and translucency of the crown to your surrounding teeth.
Not sure which crown material is right for you? We can help you weigh your options.
How to Care for Your Temporary Crown
Your temporary crown needs extra attention because it is less secure and less durable than a permanent one. The goal is to keep it in place and keep the underlying tooth clean until your next appointment.
When it comes to eating, avoid sticky foods like caramel, taffy, and chewing gum. These can grab onto the crown and pull it off. Hard and crunchy foods like nuts, popcorn, and raw carrots also pose a risk because they can crack the temporary material. Try to chew on the opposite side of your mouth when possible, and cut food into smaller pieces to reduce pressure.
For oral hygiene, brush gently around the temporary crown with a soft-bristled toothbrush. When flossing, slide the floss out from the side rather than pulling it straight up, which could catch the edge of the crown and dislodge it. A warm saltwater rinse can help soothe irritated gums during the adjustment period.
Avoid very hot or very cold foods and beverages in the first few days, as your tooth may be more sensitive to temperature while it is covered by a temporary restoration.
What to Do If Your Temporary Crown Falls Off
It happens more often than you might think. If your temporary crown comes loose or falls off, do not panic. Retrieve the crown if you can, rinse it gently with warm water, and call your dentist’s office to schedule a reattachment.
If you cannot get in to see your dentist right away, you can use temporary dental cement from a pharmacy to hold the crown in place until your appointment. Do not use super glue or household adhesives, as these can damage both the crown and your tooth.
While you are waiting, be extra careful with that tooth. Avoid chewing on that side, and brush gently to keep the area clean. The longer your prepared tooth goes without a crown, the greater the risk of sensitivity, bacterial exposure, and tooth movement.
What Happens After a Root Canal? Why Crowns Matter
If you are getting a crown after a root canal, the timeline matters. A root canal removes the infected tissue inside your tooth, but it also removes the blood supply that keeps the tooth strong. Without a crown, a root canal-treated tooth is significantly more brittle and more likely to fracture under normal chewing pressure.
Our article on what happens after a root canal explains the full recovery process, including why timely crown placement within two to four weeks is so important for long-term success.
Same-Day Crowns: An Alternative to the Two-Visit Process
If the idea of wearing a temporary crown for weeks does not appeal to you, same-day crowns may be an option. Using CAD/CAM technology (often called CEREC), your dentist can design and mill a permanent crown in a single appointment. A digital scanner captures a 3D image of your tooth, software designs the crown, and a milling machine carves it from a block of ceramic or zirconia right in the office.
Same-day crowns eliminate the need for a temporary crown entirely. The entire process typically takes one to two hours. According to Healthline, CEREC crowns are made from high-quality ceramic and can last just as long as traditional lab-fabricated crowns when properly placed and maintained.
Same-day crowns are not the right choice for every situation. Complex cases involving multiple teeth or teeth that need significant preparation may still benefit from the traditional lab process. Your dentist can help you determine which approach is best for your specific needs.
How to Make Your Permanent Crown Last
Once your permanent crown is in place, taking care of it is straightforward. A crowned tooth does not require special products or routines, but it does need consistent care to protect the underlying tooth from decay and gum disease.
Brush twice a day with a fluoride toothpaste and a soft-bristled brush. Floss daily, paying special attention to the area where the crown meets the gumline. This is where plaque tends to accumulate and where decay is most likely to start.
Avoid using your teeth as tools. Do not chew on ice, pen caps, or other hard objects. If you grind your teeth at night, talk to your dentist about a custom night guard to protect both your crown and your natural teeth.
Keep up with regular dental checkups and professional cleanings. Your dentist can spot early signs of wear, loosening, or decay around the crown before they become bigger problems.
If you are considering a dental crown in Irvine, our team at Dr. Stan Chien’s office can walk you through every step of the process and help you choose the right material for your needs.
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Frequently Asked Questions About Temporary and Permanent Crowns
Can I eat normally with a temporary crown?
Not quite. You should avoid sticky, hard, and extremely hot or cold foods while wearing a temporary crown. Stick to softer foods, chew on the opposite side of your mouth, and cut your food into smaller pieces. Once your permanent crown is placed, you can return to your normal diet after a short adjustment period.
How long does a temporary crown last?
Temporary crowns are designed to last two to three weeks, which is typically how long it takes for a dental lab to fabricate your permanent crown. In some cases, a temporary crown can last several months, but it is not intended for long-term use and should be replaced with a permanent restoration as soon as possible.
What happens if I delay getting my permanent crown?
Delaying your permanent crown puts your prepared tooth at risk. The temporary crown is not strong enough for long-term protection, and the longer you wait, the more likely you are to experience sensitivity, decay, or shifting of adjacent teeth. In some cases, the tooth may need additional preparation or a new impression if too much time has passed.
Does getting a crown hurt?
The crown procedure itself is not painful. Your dentist uses local anesthesia to numb the area during tooth preparation. You may experience mild sensitivity or discomfort for a few days after each appointment, but over-the-counter pain relievers are usually enough to manage it.
How long do permanent crowns last?
Most permanent crowns last between five and 15 years with proper care. Material matters. Gold and metal alloy crowns can last 20 years or more, while porcelain and ceramic crowns typically fall in the 10 to 15 year range. Good oral hygiene, regular dental visits, and avoiding habits like teeth grinding can extend the life of any crown.
Are same-day crowns as good as traditional crowns?
Same-day crowns made with CAD/CAM technology are a viable alternative to traditional lab-fabricated crowns for many patients. They are milled from high-quality ceramic or zirconia and offer comparable durability and aesthetics. However, traditional crowns may be a better fit for complex cases or situations that require the expertise of a specialized dental lab technician. Your dentist can recommend the best approach based on your specific needs.
This article is intended for informational purposes only and does not constitute medical advice. Every patient’s situation is unique. Please consult with your dentist for a personalized treatment plan.
