Are Dental Crowns Made of Plastic

Dental crowns are a common dental restoration used to restore damaged teeth. They are designed to cover a damaged tooth, providing strength, protection, and an aesthetically pleasing appearance. Dental crowns can be made from a variety of materials, including metal, porcelain, and yes, even plastic. In this article, we will explore the use of plastic in dental crowns and discuss its advantages, disadvantages, cost, and more.

1. What is a Dental Crown?

A dental crown, also known as a tooth cap, is a prosthetic device that is placed over a damaged tooth. It covers the entire visible portion of the tooth, providing strength and protection. Dental crowns are custom-made to match the color, shape, and size of the natural tooth, ensuring a natural-looking smile.

There are several reasons why someone may need a dental crown. It can be used to protect a weakened tooth, restore a broken tooth, cover a tooth with a large filling, support a dental bridge, or enhance the appearance of a misshapen or discolored tooth.

2. Materials Used in Dental Crowns

Dental crowns can be made from various materials, each with its own set of advantages and disadvantages. The most commonly used materials in dental crowns include:

a. Metal Crowns

Metal crowns, such as gold or silver alloy crowns, are known for their durability and strength. They can withstand heavy biting forces and are less likely to chip or break. However, their metallic appearance makes them less desirable for front teeth.

b. Porcelain-Fused-to-Metal (PFM) Crowns

PFM crowns combine the strength of metal with the aesthetic appeal of porcelain. These crowns have a metal base that is covered with a layer of tooth-colored porcelain. While they provide a natural look, the metal layer may be visible at the gum line in some cases.

c. All-Ceramic Crowns

All-ceramic or all-porcelain crowns are popular for their excellent aesthetics. They can closely mimic the color, translucency, and texture of natural teeth, making them suitable for front teeth restorations. However, they may not be as strong as metal or PFM crowns and are more prone to chipping or cracking.

d. Plastic Crowns

Plastic, or resin, crowns are made from a type of dental composite material. They are the most affordable option and are mainly used as temporary crowns during the fabrication of permanent crowns. Plastic crowns are less durable and may not provide the same aesthetics as other materials.

3. Advantages of Plastic Dental Crowns

Despite their temporary nature and lower durability, plastic dental crowns have several advantages:

a. Cost-effective

Plastic crowns are the most cost-effective option for dental restorations. They are significantly cheaper than other crown materials, making them a suitable choice for individuals on a budget.

b. Quick and Non-Invasive

Plastic crowns can be fabricated and placed relatively quickly compared to other types of crowns. The process usually involves minimal tooth preparation, and the crown can be bonded in place in a single dental visit.

c. Temporary Solution

Plastic crowns serve as temporary solutions, providing protection and aesthetics until a permanent crown is ready for placement. They can be easily reshaped or adjusted to ensure a proper fit.

d. Minimal Tooth Wear

Plastic crowns require minimal tooth preparation, meaning less natural tooth structure needs to be removed compared to other crown materials. This preserves more of the natural tooth.

4. Disadvantages of Plastic Dental Crowns

While plastic dental crowns have their advantages, they also come with some drawbacks:

a. Lower Durability

Plastic crowns are less durable than other materials and may not withstand heavy biting forces over an extended period. They are more prone to chipping, cracking, or wearing down, especially in individuals who grind or clench their teeth.

b. Aesthetics

Plastic crowns may not provide the same level of aesthetics as other materials. They may look artificial and less natural due to their composition and inability to mimic the translucency of natural teeth.

c. Longevity

Due to their lower durability, plastic crowns may need to be replaced more frequently than other crowns. The lifespan of a plastic crown can vary depending on factors such as oral hygiene practices, biting habits, and overall dental care.

d. Usage Limitations

Since plastic crowns are primarily a temporary solution, they are not recommended for long-term use. They are not suitable for posterior teeth (molars and premolars) that endure significant chewing forces.

5. Cost of Plastic Dental Crowns

The cost of dental crowns, including plastic crowns, can vary depending on various factors, such as the location, dental provider, and the number of crowns needed. On average, a plastic crown can cost between $300 to $600 per tooth. However, it is essential to consult with a dentist to obtain an accurate cost estimate.

6. Frequently Asked Questions

Q: Are plastic dental crowns safe?

A: Yes, plastic dental crowns are considered safe. However, they are typically used as temporary solutions and not recommended for long-term use.

Q: Can I eat normally with a plastic dental crown?

A: While plastic crowns are designed to withstand normal chewing forces, it is advisable to avoid biting on hard or sticky foods, as they can damage the crown.

Q: How long do plastic dental crowns last?

A: Plastic dental crowns are not as durable as other crown materials. On average, they can last between 5 to 7 years with proper care and maintenance.