Can Same-Day CEREC Crowns Replace Failing Silver Fillings in Melbourne?
Case Note ID: Dec-2024-SDC
Location: Dental House Group (serving Melbourne’s north and west)
Primary Treatments: Same-Day Porcelain Crown, CEREC Crown Fabrication
Supporting Technology: CEREC CAD/CAM System, Digital Impression, Chair-Side Milling
Presenting Clinical Problem
A patient presented with failing amalgam restoration requiring crown replacement. The existing silver filling showed distortion and structural compromise with concern regarding potential tooth fracture. The patient requested single-appointment treatment to avoid multiple visits.
Treatment Plan & Clinical Process
Phase 1: Assessment and Digital Planning
- Complete dental examination and evaluation of failing restoration
- Assessment of remaining tooth structure and crown suitability
- Digital impression using intraoral scanner capturing tooth preparation area
- Computer-aided design of crown restoration using CEREC software
- Shade selection for ceramic crown matching adjacent natural teeth
Phase 2: Tooth Preparation and Crown Milling
- Removal of failing amalgam restoration and compromised tooth structure
- Tooth preparation for full coverage crown following standard protocols
- Verification of digital impression accuracy and preparation margins
- Chair-side milling of porcelain crown from ceramic block
- Quality verification of milled crown before try-in
Phase 3: Crown Try-In and Cementation
- Try-in of milled crown verifying fit, contact and occlusion
- Adjustments to crown contours or occlusion if needed
- Internal crown surface preparation for bonding
- Systematic cementation procedure securing crown to tooth
- Final occlusal adjustment and polishing of restoration margins
Clinical Outcome
Treatment was completed in single appointment. Failing silver amalgam restoration was removed, and same-day CEREC porcelain crown was fabricated and cemented. The crown provided full coverage protection for weakened tooth structure.
Individual results vary. CEREC crowns use different ceramic material than laboratory crowns which may affect strength or aesthetics. Crowns typically last 10-15 years before replacement may be needed. No guarantees can be made about outcomes.
Frequently Asked Questions for Melbourne Patients
How do same-day crowns differ from traditional crowns?
Same-day CEREC crowns are designed and milled in the dental office during single appointment using digital scanning and computer-aided manufacturing. Traditional crowns require impressions, temporary crown placement, laboratory fabrication period and second appointment for final placement. Both provide durable tooth restoration but same-day approach eliminates waiting period and temporary phase.
Are same-day crowns as strong as laboratory crowns?
CEREC crowns use high-quality ceramic materials providing good strength and durability for most situations. Laboratory crowns may use different ceramic types or layering techniques that can provide advantages for certain cases. Both restoration types are appropriate depending on individual circumstances. Assessment determines best approach for each tooth.
Why do silver fillings fail?
Amalgam fillings can fail due to corrosion over time, fracture from chewing forces, marginal breakdown creating gaps between filling and tooth, or expansion and contraction causing tooth cracks. Large amalgam fillings weaken remaining tooth structure increasing fracture risk. Failed fillings typically require crown coverage rather than filling replacement for adequate tooth protection.
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