Cementation Protocol for PropedoZR Crowns
Pre-Cementation Preparation
- Ensure tooth is properly prepped : smooth margins, rounded line angles, proper occlusal clearance
- Rinse and dry the tooth—maintain moisture control with cotton rolls or rubber dam
- Try-in the crown to verify passive fit and full seating
-
Clean crown internally with : Rinse thoroughly with water and clean using an ultrasonic cleaner or soft brush with isopropyl alcohol to remove saliva, blood, and debris that may interfere with bonding.
Apply a zirconia-specific cleaning agent (e.g., Ivoclean or ZirClean) for 20 seconds, rinse, and air-dry to ensure optimal surface decontamination before cementation.
Resin-Modified Glass Ionomer Cement (RMGIC)
Examples : FujiCEM, RelyX Luting Plus
- Mix according to manufacturer instructions
- Apply cement to internal surface of crown
- Seat crown with firm finger pressure
- Maintain pressure for 2–3 minutes until initial set
- Remove excess cement with floss and explorer before it hardens
- Check occlusion and polish margins if needed
Bioactive Luting Cement (e.g., Activa BioACTIVE)
- Offers fluoride release, biocompatibility, and marginal seal
- Shake cartridge well before use
- Apply directly into the crown or onto tooth
- Seat crown immediately—avoid delay
- Light cure for 20 seconds or allow to self-cure
- Clean excess and verify fit
Self-Adhesive Resin Cement (e.g., RelyX Unicem, Maxcem Elite)
- Suitable for high retention and strength
- Apply cement directly into the crown
- Seat crown quickly before working time ends
- Allow self-curing or dual-cure with light activation
- Remove excess cement during gel phase for easy cleanup
Post-Cementation Protocol
- Check for marginal adaptation and occlusal interference
- Give hygiene instructions to parent (flossing and brushing around crown margins)
- Schedule follow-up in 6 months
Pre-Cementation Preparation
- Ensure tooth is properly prepped: smooth margins, rounded line angles, proper occlusal clearance
- Rinse and dry the tooth—maintain moisture control with cotton rolls or rubber dam
- Try-in the crown to verify passive fit and full seating
- Clean crown internally with:
- Alcohol or
- Ultrasonic cleaner (especially for zirconia)
- Do not etch or bond the inner surface unless recommended by cement manufacturer
Resin-Modified Glass Ionomer Cement (RMGIC)
Examples : FujiCEM, RelyX Luting Plus
- Mix according to manufacturer instructions
- Apply cement to internal surface of crown
- Seat crown with firm finger pressure
- Maintain pressure for 2–3 minutes until initial set
- Remove excess cement with floss and explorer before it hardens
- Check occlusion and polish margins if needed
Bioactive Luting Cement (e.g., Activa BioACTIVE)
- Offers fluoride release, biocompatibility, and marginal seal
- Shake cartridge well before use
- Apply directly into the crown or onto tooth
- Seat crown immediately—avoid delay
- Light cure for 20 seconds or allow to self-cure
- Clean excess and verify fit
Self-Adhesive Resin Cement (e.g., RelyX Unicem, Maxcem Elite)
- Suitable for high retention and strength
- Apply cement directly into the crown
- Seat crown quickly before working time ends
- Allow self-curing or dual-cure with light activation
- Remove excess cement during gel phase for easy cleanup
Post-Cementation Protocol
- Check for marginal adaptation and occlusal interference
- Give hygiene instructions to parent (flossing and brushing around crown margins)
- Schedule follow-up in 6 months
