Dental crowns are a common and versatile dental restoration used to restore the shape, strength, and appearance of damaged or decayed teeth. They cover the entire visible portion of the tooth above the gum line, effectively becoming the tooth's new outer surface. But what exactly are dental crowns made of? In this blog, we'll explore the various materials used in dental crowns, their benefits, and which option might be best for your needs.
What Are Dental Crowns?
Dental crowns are custom-made caps placed over a tooth to restore its shape, size, strength, and appearance. They are used for a variety of reasons, including:
- Protecting a weak tooth from breaking or holding together parts of a cracked tooth.
- Restoring an already broken tooth or a tooth that has been severely worn down.
- Covering and supporting a tooth with a large filling when there isn't much tooth left.
- Holding a dental bridge in place.
- Covering misshapen or severely discolored teeth.
- Covering a dental implant.
Crowns can be made from several different materials, each offering unique benefits and characteristics.
Materials Used in Dental Crowns
Dental crowns are crafted from a variety of materials, each offering distinct advantages to suit different dental needs. The choice of material depends on factors such as the location of the tooth, aesthetic preferences, and budget. Here are the primary materials used in dental crowns:
- Porcelain Porcelain crowns are known for their natural appearance and are often used for front teeth. They can be color-matched to the surrounding teeth, making them a popular choice for visible areas. Porcelain is also resistant to staining, which helps maintain the appearance of the crown over time. However, porcelain crowns may not be as strong as other materials, and there is a risk of chipping, especially if used on back teeth that experience more biting force.
- Porcelain-Fused-to-Metal (PFM) PFM crowns combine the natural look of porcelain with the strength of a metal substructure. The metal provides durability and a secure fit, while the porcelain overlay gives the crown a more natural appearance. PFM crowns are versatile and can be used on both front and back teeth. However, the metal base can sometimes cause a dark line to appear at the gum line, especially if the gums recede over time.
- Metal Metal crowns, often made from alloys that contain gold, palladium, nickel, or chromium, are extremely durable and can withstand biting and chewing forces well. They are an excellent choice for back teeth, where the crown's appearance is less of a concern. Metal crowns are less likely to chip or break compared to other materials, but their metallic color makes them less aesthetically pleasing for visible teeth.
- Zirconia Zirconia crowns are made from a strong ceramic material that offers excellent durability and a natural appearance. They are often used for patients who want the strength of metal without the metallic appearance. Zirconia crowns can be translucent, which allows them to blend in well with natural teeth. They are also less likely to cause allergic reactions compared to metal crowns.
- Resin Resin crowns are made from a composite material and are generally more affordable than other types of crowns. They can be color-matched to the natural teeth, providing a decent aesthetic appearance. However, resin crowns are less durable and more prone to wear and tear, making them a less popular choice for long-term restorations.
Choosing the Right Material for Your Dental Crown
The choice of material for your dental crown depends on several factors, including the location of the tooth, your aesthetic preferences, and your budget. Here's a quick guide to help you decide:
- Front Teeth: Porcelain or zirconia crowns are often preferred for front teeth due to their natural appearance and color-matching capabilities.
- Back Teeth: Metal or PFM crowns are usually recommended for molars and premolars, as they provide the strength needed to withstand chewing forces.
- Aesthetic Considerations: If aesthetics are a priority, porcelain or zirconia crowns are excellent choices due to their ability to mimic the natural look of teeth.
- Budget: Resin crowns are a more affordable option but may require more frequent replacement due to wear and tear.
The Versatility of Dental Crowns
If you're considering a dental crown or want to learn more about your options, schedule a consultation with our dental experts today. We'll guide you through the process and help you choose the best material for your unique situation.
Contact us now to book your appointment and take the first step towards restoring your beautiful smile!