Dental Crowns St. John's: What They Are and When You Need One
- Jul 12
- 10 min read
A tooth that looks fine on the outside can be structurally compromised on the inside, and that gap between appearance and reality is exactly where dental crowns do their most important work. If you have been told you need a crown and are not sure whether that recommendation is justified, you are not alone. Crown placement is one of the most common restorative procedures performed at Stavanger Dental in St. John's, and patients consistently arrive with the same questions: What exactly is a crown? Will it hurt? And do I actually need one, or is my dentist being overly cautious? This article answers all of that directly.
Table of Contents
Quick Takeaways
Key Insight
Explanation
A crown is not just cosmetic
Crowns restore structural integrity to a tooth that can no longer function safely with a filling alone.
Not every cracked tooth needs a crown immediately
Hairline cracks may be monitored, but cracks extending to the gum line typically require prompt crown placement to prevent fracture.
Root canal teeth almost always need a crown
After a root canal, the tooth becomes brittle. A crown protects it from splitting, which would likely mean extraction.
Material choice affects longevity and appearance
Porcelain crowns look natural but may wear opposing teeth faster. Zirconia offers a balance of strength and aesthetics most patients prefer.
Waiting too long costs more
A tooth that could have been saved with a crown often ends up needing an implant or bridge if the delay allows further fracture or decay.
The Canadian Dental Care Plan may cover part of the cost
Stavanger Dental accepts the Canadian Dental Care Plan, which can offset crown costs for eligible patients in St. John's.
Two appointments is the standard process
Most crown procedures involve a preparation visit and a fit-and-cement visit, typically two to three weeks apart.
What Is a Dental Crown?
A dental crown is a tooth-shaped cap that fits over a damaged, weakened, or aesthetically compromised tooth. It covers the entire visible portion of the tooth down to the gum line, restoring its shape, size, strength, and appearance. Think of it as a protective shell permanently cemented onto a prepared tooth surface.
Crowns are not removable like dentures. Once cemented, they function exactly like a natural tooth and are cleaned the same way. Patients sometimes confuse crowns with veneers, but veneers only cover the front surface of a tooth and are primarily cosmetic. A crown surrounds the entire tooth and is chosen when structural repair, not just appearance, is the goal.
In practice, the decision to place a crown comes down to one core question: has this tooth lost enough structure that a filling or bond cannot reliably protect it long term? If the answer is yes, a crown is the evidence-based next step, not an upsell.
When Do You Actually Need a Crown?
This is where a lot of patients get confused, and understandably so. The word "crown" gets used frequently, and it can feel like a significant intervention. But there are specific clinical situations where a crown is not just recommended but genuinely necessary to save the tooth.
After a Root Canal
A root canal removes the pulp tissue from inside the tooth, which means the tooth loses its internal blood supply and moisture source. Over time, that tooth becomes significantly more brittle than a healthy tooth. Without a crown, biting forces can split the tooth vertically, which is a catastrophic outcome that almost always requires extraction. The data is consistent here: root canal-treated posterior teeth (molars and premolars) that are not crowned fail at a substantially higher rate than those that are. Crowning after a root canal is not optional for back teeth.
Large Fillings and Decay
A common mistake is assuming that a tooth can always just get a bigger filling when old fillings fail or new decay develops nearby. The reality is that once a filling covers more than roughly half the tooth structure, the remaining walls of the tooth become thin and prone to fracture. A crown redistributes biting forces across the entire tooth rather than concentrating stress at those thin walls.
Cracked or Fractured Teeth
Cracked tooth syndrome is surprisingly common, especially in patients who grind their teeth at night. The pain is often sharp and fleeting, triggered by biting or releasing pressure. If a crack is identified before it reaches the gum line, a crown can bind the tooth together and prevent the crack from propagating. Once a crack extends below the gum line, the prognosis shifts dramatically and extraction becomes more likely.
Worn Teeth From Grinding
Bruxism, or chronic teeth grinding, wears down enamel over years until the teeth are visibly shorter and the surfaces are flat or chipped. When the damage is extensive, crowns are often the most effective way to restore vertical dimension and protect the remaining tooth structure. At Stavanger Dental, patients with significant wear are often assessed for a nightguard as part of the same treatment plan.
Anchor Teeth for a Bridge
When a tooth is missing and a fixed bridge is the chosen replacement, the teeth on either side of the gap (called abutment teeth) are prepared and crowned to anchor the bridge in place. The crowns hold the artificial tooth suspended between them. This is one scenario where a tooth that might otherwise not need a crown does receive one as part of a broader restorative plan.
Pro tip: If your dentist recommends a crown, ask them to show you the X-ray and explain specifically what they see. A confident dentist will walk you through the clinical evidence. If they cannot, get a second opinion.
The Tooth Crown Procedure Step by Step
The tooth crown procedure at a well-run dental office like Stavanger Dental is straightforward and predictable. Most patients are surprised by how manageable it is once they understand each stage.
Appointment One: Preparation and Impressions
The dentist numbs the area with local anesthetic, then reshapes the tooth by removing a thin layer of enamel from all sides to create room for the crown. The amount removed depends on the crown material chosen, typically between 1.5 and 2 millimetres. An impression of the prepared tooth is taken, either digitally or with impression material, and sent to a dental laboratory. A temporary crown is placed to protect the tooth between appointments.
The temporary crown is made of acrylic and is not as strong as the final restoration. Patients are advised to avoid sticky or hard foods on that side and to be gentle when flossing around it.
Appointment Two: Fitting and Cementing
When the permanent crown returns from the lab, usually two to three weeks later, the temporary is removed, the tooth is cleaned, and the new crown is checked for fit, bite, and colour match. Adjustments are made until everything is right. The crown is then permanently cemented and the bite confirmed. Most patients leave the second appointment with a fully restored, functional tooth.
Patients who are anxious about dental procedures should know that Stavanger Dental offers sedation options that make both appointments far more comfortable. Sedation does not change the clinical process, it simply changes the patient experience of it.
"Crowns are one of the most well-documented restorative interventions in dentistry, with survival rates exceeding 90 percent at five years when properly placed and maintained." - Canadian Dental Association clinical guidance on fixed prosthodontics
Pro tip: At your fitting appointment, do not leave the chair until your bite feels completely natural. Biting slightly high on a crown causes stress on the tooth and jaw joint, and it is much easier to adjust before you leave than to come back and troubleshoot sensitivity later.
Types of Dental Crowns Compared
Not all crowns are made the same, and the right material depends on where the tooth is in your mouth, your bite strength, your aesthetic priorities, and your budget. Here is a direct comparison of the three most commonly used crown types in restorative dentistry in St. John's.
Crown Type
Best For
Key Tradeoff
Porcelain-Fused-to-Metal (PFM)
Back teeth where moderate aesthetics and strength are both needed
A dark line may appear at the gum line over time as the gum recedes, revealing the metal base
Full Zirconia
Patients with heavy bite forces or grinding habits, back teeth especially
Monolithic zirconia is very strong but can look slightly opaque compared to natural teeth in high-visibility areas
Full Porcelain (All-Ceramic)
Front teeth where appearance is the priority
More translucent and natural-looking, but less fracture-resistant under heavy biting forces than zirconia
In practice, zirconia has largely replaced PFM as the go-to for most posterior crowns at modern dental offices. The material is stronger, has no metal to show at the gum line, and patients tolerate it well. For front teeth, layered zirconia or lithium disilicate (e-max) remains the aesthetic standard.
The choice is made collaboratively between you and your dentist. If you are a bruxer with documented wear, your dentist will likely steer you toward full zirconia even on visible teeth, because a beautiful crown that fractures in two years serves no one.
How Crowns Fit Into Restorative Dentistry in St. John's
Crowns rarely exist in isolation. In restorative dentistry St. John's practices like Stavanger Dental, a crown recommendation typically sits inside a broader treatment plan that considers the health of surrounding teeth, gum condition, bite alignment, and the patient's long-term goals.
For example, a patient who needs a crown on a molar because of a cracked cusp might also benefit from a nightguard if bruxism is the underlying cause. Treating the crown without addressing the bruxism is like replacing a tire without aligning the wheels. At Stavanger Dental, treatment planning accounts for the cause, not just the symptom.
Crowns also play a role in implant restoration. When a dental implant is placed to replace a missing tooth, the visible part of the restoration that screws or cements onto the implant post is technically a crown. The crown in that context is custom-made to match surrounding teeth and restore full chewing function.
Patients who have been told they need multiple crowns should ask for a phased treatment plan. Prioritizing the teeth with the most urgent structural risk makes clinical and financial sense. A good restorative dentist will help you understand which tooth to address first and why.
How Long Do Dental Crowns Last?
The honest answer: most well-placed crowns last 10 to 15 years, and many last significantly longer. The Canadian Dental Association notes that crown longevity depends heavily on the quality of the cement seal, the patient's oral hygiene, and whether the underlying bite is properly managed.
The most common reason crowns fail prematurely is decay developing at the margin, the junction between the crown edge and the tooth. This happens when the gum recedes slightly, exposing the root surface, and oral hygiene at that margin is inadequate. Crowns do not decay, but the natural tooth underneath them can.
Patients with crowned teeth should maintain regular cleaning appointments, use fluoride toothpaste, and floss daily including around the crown margin. If you grind your teeth, wearing a custom nightguard dramatically extends the life of your crowns. The nightguard absorbs the forces that would otherwise fatigue the crown material and the cement bond underneath it.
Stavanger Dental provides restorative dentistry services including crown placement, with follow-up care built into the treatment relationship. Patients are not sent home with a crown and forgotten. Monitoring the margin and bite at regular hygiene visits is part of how long-term success is achieved.
Frequently Asked Questions
How much does a dental crown cost in St. John's?
Crown costs in St. John's vary depending on the material and complexity, but porcelain or zirconia crowns typically range from approximately $1,200 to $1,800 per tooth based on current provincial fee guides. Patients covered under the Canadian Dental Care Plan may have a portion of this covered depending on their eligibility and the tooth being treated. Stavanger Dental accepts the Canadian Dental Care Plan and can provide a detailed cost breakdown before treatment begins.
Does getting a crown hurt?
The preparation appointment is done under local anesthetic, so the procedure itself should be painless. Some sensitivity is normal after the anesthetic wears off, particularly to temperature and pressure on the prepared tooth while the temporary crown is in place. Once the permanent crown is cemented and the bite is properly adjusted, most patients report no ongoing discomfort.
Can I get a crown on a tooth that has had a root canal?
Yes, and in most cases you should. A root canal-treated tooth is structurally more vulnerable than a vital tooth, and a crown is the standard of care for protecting it, particularly for back teeth that bear chewing forces. Skipping the crown after a root canal significantly increases the risk of the tooth fracturing to the point where it cannot be saved.
Is there an alternative to a crown for a cracked tooth?
For minor cracks in the enamel only, a bonded restoration or onlay may be sufficient. However, for cracks that extend into dentin or that cause pain with biting and releasing, a crown is the most reliable treatment. Onlays cover the biting surface and one or more cusps but do not wrap entirely around the tooth the way a crown does. Your dentist will assess the crack's depth and direction to recommend the most appropriate option.
How do I know if a crown recommendation is legitimate?
Ask to see the X-ray and have the tooth photographed before preparation begins. A legitimate crown recommendation will be supported by visible evidence of cracking, extensive decay, large failing fillings, or post-root canal status. If your dentist cannot point to a specific clinical reason on film or with direct examination, a second opinion is entirely reasonable and any ethical practice will support that decision.
What happens if I delay getting a crown I need?
The most common outcome of delaying a necessary crown is that the tooth fractures. Depending on where the fracture line runs, this can result in a tooth that is no longer restorable, meaning extraction becomes necessary. The replacement options, including implants and bridges, cost significantly more than the original crown would have. Delay rarely saves money and frequently costs more in both treatment complexity and tooth loss.
Have you had a crown placed at Stavanger Dental or elsewhere? We would like to hear what your experience was like and whether this article answered the questions you had going in.
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