Complete Guide to Dental Crowns: Types, Cost and What to Expect

What Is a Dental Crown?

A dental crown is a tooth-shaped cap that is permanently cemented over an existing tooth or dental implant. It completely covers the visible portion of the tooth above the gum line, effectively becoming the tooth's new outer surface.

Crowns serve both functional and aesthetic purposes. They protect weakened teeth from further damage, restore the shape and size of broken teeth, and improve the appearance of severely discoloured or misshapen teeth.

When Do You Need a Dental Crown?

Your dentist may recommend a crown in the following situations:

• After a root canal treatment: A tooth that has undergone root canal therapy is more brittle and needs a crown for protection.
• Large cavity or filling: When a tooth has extensive decay or an old filling that covers more than half the tooth, a crown provides better support than another filling.
• Cracked or fractured tooth: A crown holds the tooth together and prevents the crack from worsening.
• Worn-down teeth: Teeth worn from grinding (bruxism) or acid erosion can be rebuilt with crowns.
• After a dental implant: A crown is the visible part of an implant that looks and functions like a natural tooth.
• Cosmetic improvement: Severely discoloured or misshapen teeth that cannot be improved with whitening or veneers.
• Dental bridge support: Crowns are placed on teeth adjacent to a gap to anchor a dental bridge.

Types of Dental Crowns

Several materials are used for dental crowns, each with its own advantages. The best choice depends on the tooth's location, your bite, and your aesthetic preferences.

1. All-Porcelain (Ceramic) Crowns

All-porcelain crowns offer the most natural appearance, making them an excellent choice for front teeth. They are metal-free, which is ideal for patients with metal allergies. However, they are slightly less durable than some alternatives and may not be the best option for back teeth that endure heavy chewing forces.

2. Zirconia Crowns

Zirconia is one of the strongest crown materials available. These crowns are highly durable, resist chipping, and provide a good aesthetic result. They are increasingly popular for both front and back teeth because they combine strength with a natural appearance. Many clinics, including Trust Dental, favour zirconia for its versatility.

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

PFM crowns have a metal core covered with a porcelain outer layer. They offer a good balance of strength and aesthetics, although the metal base can sometimes create a dark line near the gum over time. They are a reliable, time-tested option for both front and back teeth.

4. Full Metal Crowns (Gold or Base Metal Alloys)

Metal crowns are the strongest and most durable option. They require the least amount of tooth removal and rarely chip or break. The obvious drawback is their metallic colour, so they are typically reserved for back teeth that are not visible when you smile.

Crown Material Comparison

• Best aesthetics: All-porcelain or layered zirconia
• Best durability: Full metal or monolithic zirconia
• Best all-rounder: Zirconia — strong, natural-looking, and metal-free
• Most affordable: PFM or base metal crowns

The Dental Crown Procedure: Step by Step

Getting a dental crown typically requires two visits to the clinic, spaced about 1–2 weeks apart.

Visit 1: Preparation

1. Assessment and X-rays: Your dentist examines the tooth and takes X-rays to check the root and surrounding bone. If there is significant decay or infection, a root canal may be needed first.
2. Tooth reshaping: The tooth is filed down on all sides to create space for the crown. The amount removed depends on the crown material — metal crowns need the least reduction, while porcelain crowns need slightly more.
3. Impression taking: A digital scan or physical mould of the prepared tooth is taken. This is sent to a dental laboratory where your crown is custom-made.
4. Temporary crown: A temporary crown is placed to protect the prepared tooth while you wait for the permanent crown.

Visit 2: Fitting

1. Temporary crown removal: The temporary crown is carefully removed.
2. Crown try-in: The permanent crown is placed on the tooth to check the fit, bite, and colour. Adjustments are made as needed.
3. Cementation: Once you and your dentist are satisfied, the crown is permanently cemented in place.

The entire process is done under local anaesthesia, so you should not feel any pain. Some patients experience mild sensitivity for a few days after each visit, which is normal.

How Much Do Dental Crowns Cost in Singapore?

Dental crown costs in Singapore vary based on the material, the complexity of the case, and whether any additional treatments (such as root canal or core build-up) are needed.

General cost ranges for a single dental crown:

• PFM crowns: $600–$1,000
• Zirconia crowns: $800–$1,500
• All-porcelain crowns: $800–$1,500
• Full metal crowns: $700–$1,200

All prices above are before GST (9%). Additional costs may apply if you need a root canal, post and core, or other preparatory work. Your dentist will provide a detailed cost breakdown during your consultation.

While dental crowns are generally not claimable under Medisave, crowns placed on dental implants may be part of an overall implant treatment that qualifies. Ask your dentist about your specific situation.

How Long Do Dental Crowns Last?

With proper care, a well-made dental crown can last 10 to 15 years or longer. Some crowns remain in excellent condition for over 20 years. The lifespan depends on:

• Crown material: Metal and zirconia crowns tend to last the longest.
• Oral hygiene: Good brushing and flossing habits prevent decay at the crown margin.
• Bite habits: Grinding your teeth (bruxism) can shorten a crown's lifespan. A night guard can help.
• Diet: Avoid biting hard objects like ice, nutshells, or pen caps.

Caring for Your Dental Crown

A crowned tooth still needs the same care as a natural tooth. The crown itself cannot decay, but the tooth underneath and along the gum line is still vulnerable.

• Brush twice daily with fluoride toothpaste
• Floss around the crown every day — use floss threaders or interdental brushes if needed
• Avoid chewing hard foods (ice, hard sweets, bones) directly on the crown
• Wear a night guard if you grind your teeth
• Visit your dentist every 6 months for check-ups and professional cleaning

Crowns vs Veneers: What Is the Difference?

Both crowns and veneers improve the appearance of teeth, but they serve different purposes:

• Veneers are thin shells bonded to the front surface of a tooth. They are best for cosmetic changes — colour, shape, and minor alignment. They require less tooth removal.
• Crowns cover the entire tooth and provide structural support. They are the better choice when a tooth is significantly damaged, weakened, or has had root canal treatment.

If your tooth is structurally sound and you mainly want to improve its appearance, a veneer may be sufficient. If the tooth needs reinforcement, a crown is the safer long-term option. Your dentist will advise you based on your specific situation.

Dental Crowns at Trust Dental Surgery

At Trust Dental Surgery, we use high-quality crown materials and work with trusted dental laboratories to ensure a precise, comfortable fit. Whether you need a crown after a root canal, to restore a broken tooth, or as part of a dental implant, our team will guide you through every step.

Book a consultation to discuss your crown options. We will assess your tooth, explain the available materials, and provide a transparent cost estimate before any treatment begins.