When a tooth is damaged by decay, fracture, or wear, a crown can restore its strength, shape, and function. At Dr. Karen Davis Dentistry in Sarnia, Ontario, we use CEREC (Chairside Economical Restoration of Esthetic Ceramics) technology to design, fabricate, and place a custom ceramic crown in a single appointment — without the need for temporary crowns, messy impression trays, or a return visit.
What Is a CEREC Crown?
A CEREC crown is a tooth-coloured ceramic restoration that is digitally designed and milled chairside during your appointment. Unlike traditional crowns that require a dental laboratory and multiple visits over two to three weeks, a CEREC crown is completed in one sitting.
The crown is milled from a solid block of dental-grade ceramic and bonded directly to the prepared tooth. Because it is designed from a precise 3D digital scan of your mouth, the fit is accurate and the result blends naturally with your surrounding teeth.
CEREC crowns are metal-free, biocompatible, and custom-shaded to match the colour of your natural tooth structure.
How CEREC Same-Day Crowns Work
The CEREC process at Dr. Karen Davis Dentistry follows four steps, all completed in a single visit:
1. Tooth Preparation The damaged or decayed portion of the tooth is removed, and the remaining structure is shaped to receive the crown. Local anaesthesia is used to keep you comfortable throughout.
2. Digital Scanning Rather than using traditional putty impression trays, we use a digital intraoral scanner to capture a detailed 3D image of the prepared tooth and the surrounding teeth. The scan is fast, comfortable, and highly accurate.
3. Digital Design and Chairside Milling Using CEREC's CAD/CAM (computer-aided design and manufacturing) software, the crown is designed on-screen to match the shape, contour, and bite of your natural tooth. Once the design is finalized, the data is sent to an in-office milling unit, which carves the crown from a solid ceramic block in approximately 10 to 20 minutes.
4. Bonding and Final Adjustment The milled crown is tried in, checked for fit and bite alignment, and then permanently bonded to the tooth. Colour, shape, and function are verified before the crown is cemented. You leave the appointment with a finished restoration.
The total appointment time for a CEREC crown is typically 60 to 90 minutes from start to finish.
CEREC Crowns vs. Traditional Crowns
Many patients in Sarnia want to understand the differences between CEREC same-day crowns and conventional lab-fabricated crowns. Both options can produce functional, long-lasting restorations. The choice depends on clinical factors and patient preference.
Number of Appointments Traditional crowns require two visits: one for preparation and impressions, and a second visit two to three weeks later for placement. A temporary crown is worn between appointments. CEREC crowns are completed in a single visit with no temporary crown required.
Impression Method Traditional crowns use physical impression trays with putty material. CEREC uses a digital intraoral scanner, which many patients find faster and more comfortable.
Materials Traditional crowns may be made from porcelain, porcelain-fused-to-metal, gold alloy, or zirconia, depending on location and clinical need. CEREC crowns are milled from ceramic blocks, including lithium disilicate (e.max) and other high-strength dental ceramics.
Fit and Accuracy Both methods, when executed properly, produce crowns with precise fit. CEREC's digital workflow reduces the variables associated with physical impressions and manual laboratory fabrication.
Longevity Published research on CEREC restorations reports survival rates comparable to conventional ceramic crowns. A 2017 review published in the Journal of Dental Research found that CEREC restorations demonstrated a survival rate above 95% at nine years. Longevity depends on factors including oral hygiene, bite forces, and whether the patient grinds their teeth.
What Are CEREC Crowns Made Of?
CEREC crowns are milled from blocks of dental ceramic. The specific material is selected based on the location of the tooth and the functional demands placed on the restoration.
Common materials used in CEREC milling include:
Lithium Disilicate (e.max) A glass-ceramic material known for its combination of strength and translucency. It is commonly used for front teeth and premolars where both function and appearance are important.
Zirconia-Reinforced Lithium Silicate A newer generation ceramic that offers increased strength while maintaining natural translucency. It may be used in areas subject to higher bite forces.
Feldspathic Ceramic (VITA Blocks) A ceramic with high translucency that closely mimics the light-reflecting properties of natural tooth enamel. It is often used for visible front teeth.
All CEREC ceramic materials are metal-free and biocompatible, meaning they are well-tolerated by oral tissues.
Who Is a Candidate for a CEREC Crown?
CEREC crowns may be recommended for patients who have:
- A tooth with moderate to large decay that cannot be restored with a filling alone
- A cracked, chipped, or fractured tooth
- A tooth with a large existing filling that has failed or requires replacement
- A tooth that has undergone root canal treatment and needs protection
- Cosmetic concerns with the shape, colour, or alignment of a tooth
CEREC crowns may not be suitable in every situation. Teeth with extensive damage below the gum line, insufficient remaining tooth structure, or certain bite conditions may require a different restorative approach. Dr. Karen Davis evaluates each patient individually to determine whether a CEREC crown is the appropriate treatment option.
Caring for a CEREC Crown
A CEREC crown does not require special maintenance beyond consistent oral hygiene practices.
Daily Care Brush twice daily with a fluoride toothpaste and floss around the crowned tooth to remove plaque and food debris from the margins where the crown meets the natural tooth.
Habits to Be Mindful Of Avoid chewing ice, hard candy, or non-food objects. Patients who grind or clench their teeth (bruxism) may benefit from wearing a night guard to protect the crown and surrounding teeth.
Regular Dental Visits Routine dental examinations and professional cleanings allow your dentist to monitor the condition of your crown, check the margins for any changes, and ensure the surrounding gum tissue remains healthy.
With consistent care, a CEREC crown can function well for many years. The actual lifespan of any dental restoration varies depending on individual oral health, bite forces, and habits.
What to Expect During Recovery
Because CEREC crowns are placed in a single visit and do not require a temporary crown, the recovery process is straightforward.
Immediately After It is normal to experience mild sensitivity in the treated tooth for a few days following the procedure, particularly to temperature. This typically resolves on its own.
Bite Adjustment If the crown feels high or uneven when biting, contact our office. A simple bite adjustment can be made quickly to ensure comfortable function.
Eating and Activity Most patients can eat and drink normally once the local anaesthesia has worn off. There are no activity restrictions following a CEREC crown placement.
Frequently Asked Questions About CEREC Same-Day Crowns
How long does a CEREC crown appointment take? A CEREC crown appointment at Dr. Karen Davis Dentistry in Sarnia typically takes 60 to 90 minutes from preparation to final bonding. The entire process — scanning, designing, milling, and placement — is completed in that single visit.
Are CEREC crowns as durable as traditional crowns? CEREC crowns are milled from the same class of dental ceramics used in laboratory-fabricated crowns. Published clinical studies show comparable long-term survival rates between CEREC restorations and conventional ceramic crowns.
Do CEREC crowns look natural? CEREC crowns are custom-shaded to match the colour of your natural teeth. The ceramic materials used have translucency and light-reflecting properties similar to natural tooth enamel, allowing the crown to blend with surrounding teeth.
Is the digital scan uncomfortable? The digital intraoral scanner captures images using a small wand that is moved over the teeth. There is no impression tray, no putty, and no gagging. Most patients find the digital scan faster and more comfortable than traditional impressions.
Does dental insurance cover CEREC crowns? Most dental insurance plans that cover crowns will cover CEREC crowns, as they are classified as ceramic crown restorations. Coverage amounts vary by plan. Our office can provide a predetermination to your insurance provider before treatment so you understand your coverage.
Can a CEREC crown be placed on any tooth? CEREC crowns can be placed on most teeth, including front teeth, premolars, and molars. However, not every clinical situation is suitable for a same-day crown. Dr. Karen Davis will assess your tooth and discuss whether CEREC is the appropriate option during your consultation.
What happens if my CEREC crown chips or breaks? Ceramic crowns can chip or fracture under certain circumstances, such as biting on hard objects or trauma. If damage occurs, contact our office. Depending on the severity, the crown may be repaired or a new crown may need to be fabricated.
Is a CEREC crown the same as a veneer? A crown covers the entire tooth and is used to restore damaged or weakened teeth. A veneer covers only the front surface of a tooth and is primarily used for cosmetic improvement. Dr. Karen Davis Dentistry offers both CEREC crowns and dental veneers in Sarnia, and can help determine which option is appropriate for your needs.
CEREC Technology at Dr. Karen Davis Dentistry in Sarnia
Dr. Karen Davis Dentistry uses CEREC CAD/CAM technology to provide same-day ceramic crowns for patients in Sarnia and the surrounding Lambton County communities. The CEREC system includes a digital intraoral scanner, design software, and an in-office milling unit — allowing the entire crown process to be completed without a dental laboratory.
This approach eliminates the need for temporary crowns, reduces the number of appointments, and allows patients to leave with a permanent restoration the same day.
If you have a damaged or weakened tooth and would like to learn whether a same-day CEREC crown is an appropriate option, contact Dr. Karen Davis Dentistry in Sarnia, Ontario to schedule a consultation.
Dr. Karen Davis Dentistry — Sarnia Service Pages
12 Gold-Standard Rewrites (RCDSO Compliant)
All pages follow the CEREC template structure:
1. H1 with service + Sarnia
2. General Dentist disclosure in sitewide footer
3. Definitive opening with practice + city
4. Service definition with LLM-citable first sentence
5. Process / How it works
6. Comparison section (where applicable)
7. Materials / technology named factually
8. Candidacy (inclusions AND exclusions)
9. Aftercare / recovery
10. FAQ (5–8 pairs with definitive first-sentence answers)
11. Local closing with Sarnia entity anchoring