Ep. 658 - Full Coverage Crowns on Primary Teeth: Pros, Cons, and Best Practices

Should you choose stainless steel, zirconia, or resin-based crowns for your pediatric patients with extensive decay? When is full coverage the right choice over direct restorative techniques?

Dr. Carla Cohn brings over 30 years of clinical experience as a general dentist devoted exclusively to pediatric dentistry. She graduated from the University of Manitoba in 1991, completed a post-graduate internship in Paediatric Dentistry, and serves as a part-time clinical instructor at the University of Manitoba. Dr. Cohn is a partner at a private surgical clinic, lectures internationally on prevention and pediatric dentistry, and is a member of multiple professional organizations including the American Academy of Paediatric Dentistry and Canadian Dental Association.

This episode explores the evolution of full coverage restorations for primary teeth, examining traditional stainless steel crowns alongside newer aesthetic options like zirconia and resin-based alternatives. Dr. Cohn discusses the clinical decision-making process for determining when full coverage is appropriate, preparation techniques for different crown materials, and the critical role these restorations play in space maintenance. The conversation addresses why general dentists often feel uncomfortable with pediatric full coverage procedures and provides practical guidance for successful implementation.

Episode Highlights:

• Stainless steel crowns require minimal tooth preparation (less than 1mm occlusal reduction plus interproximal slices) and can be modified through crimping for optimal fit, while zirconia crowns demand approximately 20% tooth reduction including 1.5mm occlusal clearance and subgingival preparation for enhanced retention.
• Chair time varies significantly between materials, with stainless steel crown placement taking 60-90 seconds compared to 5-7 minutes for zirconia crowns, though zirconia provides superior strength and prevents bruxing damage that can create holes in stainless steel restorations.
• Resin-modified glass ionomer cements perform reliably for both stainless steel and zirconia crowns despite subgingival bleeding during placement, with products like Fuji and RelyX demonstrating consistent retention rates across different crown materials.
• Full coverage restorations provide superior longevity compared to intracoronal restorations in high caries risk patients, reducing the likelihood of repeat treatment when conservative approaches lead to additional decay on previously untreated surfaces within 6-12 months.
• Pulpotomy procedures can be successfully performed under all crown types using calcium silicate materials like TheraCal PT or Biodentine, with zirconia crowns requiring specialized burs to penetrate the 0.8mm occlusal thickness when endodontic access is needed.

Perfect for: General dentists treating pediatric patients, dental residents learning restorative techniques, and practitioners seeking to expand their full coverage crown options beyond traditional stainless steel.

Learn practical techniques that will transform your confidence in pediatric restorative dentistry and improve long-term outcomes for your young patients.