Educational Materials on Zirconium Crowns for Pediatric Use
1. Overview: What is Zirconium in Pediatric Dentistry?
Zirconia (ZrO₂) is a biocompatible ceramic material used in full-coverage crowns.
Introduced as an aesthetic alternative to stainless steel crowns (SSCs) for anterior and posterior teeth.
2. Clinical Indications
Extensive caries (multi-surface or pulpal involvement)
Developmental anomalies (amelogenesis/dentinogenesis imperfecta)
Trauma with crown fractures
High aesthetic demand (especially anterior teeth)
Parental preference for metal-free restorations
Articles & Research Findings
1. Walia et al. (2014) – Zirconia crowns showed superior aesthetic and gingival response compared to SSCs. Journal of Pediatric Dentistry
2. Ashima Goyal et al. (2018) – Pediatric zirconia crowns significantly improved parental satisfaction over metal crowns.
3. M. Roberts (2021) – “Ten-Year Review of Pediatric Zirconia Use” showed long-term retention with proper cementation.
(Note: You can access these via PubMed, ResearchGate, or AAPD archives)
Crown Placement Guide
Step-by-Step
1. Diagnosis & Treatment Planning
- Radiographs (bitewing/periapical)
- Evaluate pulpal status
- Confirm crown length and space availability
2. Tooth Preparation
- Incisal/occlusal reduction: 1.5–2.0 mm
- Circumferential shoulder: 1–1.5 mm with feather edge margins
- No undercuts; smooth all transitions (Zirconia crowns are passive fit)
- Avoid sharp internal angles to reduce crown fracture risk
3. Crown Selection & Try-In
- Dry fit multiple sizes
- Select snug-fitting crown (trim not allowed in most brands)
4. Cementation Protocol
Cementation Guide for Zirconia Pediatric Crowns
| Cement Type | Brands | Instructions | Pros | Cons |
|---|---|---|---|---|
| Bioactive Cement | ACTIVA BioACTIVE, Ceramir | Moist prep; Apply cement to crown; Seat firmly | Releases fluoride, excellent seal | Technique-sensitive |
| Resin-Modified Glass Ionomer (RMGI) | Fuji Plus, RelyX Luting Plus | Slightly moist prep; Fill crown; Seat for 5 min | Easy to use, fluoride release | Moderate bond strength |
| Resin Cement (Self-Adhesive) | RelyX Unicem, G-CEM LinkAce | Dry prep; Coat crown internal; Seat with pressure | High bond strength, durable | No fluoride, expensive |
| Conventional GIC | GC Gold Label, Fuji I | Moist prep; Conventional seating | Affordable, easy | Lower retention with zirconia |
Best Practice Recommendation:
- Use RMGI for everyday clinical ease (e.g., RelyX Luting Plus)
- Consider BioACTIVE or Resin Cement for high-risk caries cases or longer retention
