DIFFERENT SINTERING PROGRAMMES
PROCESSING KATANA ™ Zirconia
ADAPTED TO YOUR NEEDS
WHAT DO YOU NEED TO KNOW?
Select the right disc type and size considering the height of the restoration
The unique powder composition and specific in-house blank production procedure makes it possible to streamline the sintering of KATANA ™ Zirconia Multi-Layered discs. As a result, users may choose between the general seven-hour sintering programme and a faster 90-minute or even 54-minute protocol for single-tooth restorations and two to three-unit bridges. The ultra-fast sintering programme of 54 minutes works with KATANA ™ Zirconia UTML, STML, HTML PLUS and YML and becomes the go-to option for all rush cases. The optical and mechanical properties of the restorations are comparable to those achieved following a seven-hour sintering cycle.
Use surgical gloves when handling pre-sintered discs to avoid contamination
Follow the recommended processing protocols before sintering: - coloring and characterization with compatible products only (e.g. Esthetic Colorant for KATANA ™ Zirconia) - sprue removal and adjustments like surface texturing with fine-grid diamond instruments for oxide ceramics used at low speed (7,000 to 10,000 rpm) - removal of powder residues with a gentle stream of air or a brush, no steam cleaning, no ultrasonic bath. Drying is recommended
Remove the dust from the sintering chamber and heating elements with a soft brush before each use
20 O C
20 O C
20 O C
20 O C
20 O C
20 O C
Strictly adhere to the sintering protocols recommended by the material manufacturer Do not place different zirconia on the same tray. Use a cover for the tray
800 O C
800 O C
800 O C
800 O C
Start
Start
Start
Start
Start
Start
1600 O C
1600 O C
1560 O C
1560 O C
+120 O C/min 11.9 min
+120 O C/min 11.9 min
-120 O C/min 6.7 min
-120 O C/min 6.7 min
If you use alumina sintering beads: Replace them whenever they show signs of discoloration (at least once per month)or use beatless tray
-50 O C/min 15.2 min
-50 O C/min 15.2 min
+50 O C/min 27.6 min
+50 O C/min 27.6 min
-10 O C/min 153 min
-10 O C/min 153 min
+10 O C/min 153 min
+10 O C/min 153 min
HOLD 16 min
HOLD 16 min
Calibrate your furnace and check the temperature every two weeks following instructions of the manufacturer. Adjust the temperature if needed 1450 O C 1450 O C
7H
7H
90 min *
90 min *
54 min *
54 min *
HOLD 20 min
HOLD 20 min
+10 O C/min 6 min
+10 O C/min 6 min
Run a decontamination program with decontaminating powder or white zirconia residues (y-TZP) at least once per month
+10 O C/min 15 min
+10 O C/min 15 min
1560 O C
1560 O C
1400 O C
1400 O C
+4 O C/min 25 min
+4 O C/min 25 min
HOLD 120 min
HOLD 120 min
Sandblast before hand-polishing or glazing with aluminum oxide 50 micron, 20 or 25 psi, repeat the procedure on bonding surfaces afterwards
1550 O C
1550 O C
1550 O C
1550 O C
1500 O C
1500 O C
1600 O C
1600 O C
Use PANAVIA ™ cements for cementation
20 O C
20 O C
800 O C
800 O C
Start
Start
1600 O C
1560 O C
+120 O C/min 11.9 min
-120 O C/min 6.7 min
-50 O C/min 15.2 min
The sintering recommendation is only a guideline; some adjustments may be required depending on each individual furnace. If the furnace cannot be set according to the 54- or 90-minute sintering schedule, speed sintering cannot be used. HOLD 16 min +50 O C/min 27.6 min +10 O C/min 6 min 90 min *
+10 O C/min 153 min
1450 O C
54 min *
HOLD 20 min
Recommended by CDT Jean Chiha
+10 O C/min 15 min
1560 O C
1400 O C
+4 O C/min 25 min
Official Kuraray Noritake Dental Inc. instructor
1550 O C
1500 O C
* The restorations may be removed at 800°C or less depending on the circumstances. ** For the sintering schedule of KATANA ™ Zirconia HT, please refer to the Handy Chart in product packaging.
1600 O C
kuraraynoritake.eu
12
13
Powered by FlippingBook