Case by Dr. Shoji Kato of Takanawa Dental Office, Japan
1. After preparing the abutments
An anterior bridge made of crown and bridge resin has become dislodged. The abutments are vital teeth.
2. Prosthesis
A PFZ bridge with a frame fabricated using KATANA™ Zirconia HT12.
3. Application of Try-in Paste
Evaluate the shade of the cement before cementation.
4. Try-in
After checking the cement’s shade, rinse the prosthesis and tooth surface with water to remove Try-in Paste.
5. Pretreatment of the prosthesis (A)
Sandblast the prosthesis (at 0.3 to 0.4 MPa), clean with an ultrasonic cleaner for 2 minutes, then dry.
6. Pretreatment of the prosthesis (B)
Apply CLEARFIL™ CERAMIC PRIMER PLUS and blow dry with air.
7. Pretreatment of the abutments (C)
Apply Tooth Primer, allow it to react for 20 seconds, then blow dry with air.
8. Application of Paste
Use Universal.
9. Placement of the prosthesis
After placement, remove excess cement using a piece of gauze, a small brush, etc.
10. Light-curing
Light-cure the entire surface of the prosthesis, including the margins.
11. Final polymerization
Make sure the prosthesis is left in place, unmoved, for 3 minutes.
