Dentsply Sirona Celtra Duo Instrucciones De Uso página 3

• Note: After the first firing, the restoration may not appear suffi-
ciently glazed. In this case, apply a thin layer of Dentsply Sirona
Universal glaze to the entire surface with a brush. After apply-
ing the glaze, perform a second stain/glaze firing as defined in
the firing recommendations (see table 3). Additional stain/glaze
firing cycles can be performed using the same parameters.
Table 3: Firing Charts
Celtra Duo Firing Recommendations for the Programat CS/CS2,
Programat EP 3000/5000, P 500
Standby Closing Heating
Tem- time rate
perature
B S t h
°C min °C/min
Celtra 500 3:30 60
Paint-On
Glaze
2nd & 500 3:30 60
Subse-
quent
Glaze
Firing –
if needed
Spray 500 2:00 60
Glaze
(Indenco)
Polish
500 1:00 60
and Fire
Correc-
500 3:30 60
tion
Porcelain
Celtra Duo Firing Recommendations for VITA ovens
Start Pre- Heating
Tempera- drying
ture
°C min °C/min
Celtra
500 4:00
Paint-On
Glaze
2nd & 500 4:00
Subse-
quent
Glaze
Firing –
if needed
Spray 500 3:00
Glaze
(Indenco)
Polish 500 2:00
and Fire
Correc- 500 4:00
tion
Porcelain
Note: Please visit Celtra-DentsplySirona.com for other furnace
firing programs
3.4.3 Processing Celtra Duo in the Dentsply Sirona
SpeedFire Oven
• Make sure to select the Celtra Duo material under Dentsply in
the CEREC Software prior to scanning as this will ensure the
correct firing program will be transferred.
• Place Celtra Duo directly on the round firing pad; if using a
square firing pad, it will need to be trimmed to fit on the upper
door insulation
• Select the Celtra Duo job press and start button on the display
screen
• Please not that due to the hardware, the correct firing tempera-
ture of the CEREC SpeedFire is below the temperature listed in
this document for conventional furnaces.
• If firing an anterior, place the restoration with the lingual facing
down and with premolars, place the restoration with the inter-
proximal facing down. If there are any imperfections left of the
glaze from the firing pad, it can be easily corrected by polishing
that area.
Firing Holding Vacuum Long-
tem- time term
perature Cooling
T H on/off
Vac 1 (°C)
°C min Vac 2 (°C) °C
820 1:00 off 750
770 1:00 off 750
820 1:00 off 750
820 1:00 off 750
V1=
820 1:00 750
500 °C
V2=
819 °C
End Holding Long-
rate tempera- time term
ture Cooling
°C min min
60 820 1:00 3:00
60 770 1:00 3:00
60 820 1:00 3:00
60 820 1:00 3:00
60 820 1:30 3:00
3.5 Cementing
3.5.1 Preparation of the Celtra restoration
• Clean the restoration with an ultrasonic or steam cleaner or
with alcohol.
• Apply 5 % – 9 % hydrofluoric acid etching gel (Available sepa-
rately, see manufacturer's complete Directions for Use) to the
interior of the restoration only. Etching time 30 seconds.
• CAUTION: Follow manufacturer's precautions. Do not allow tis-
sue or eyes to come into contact with the acid! Remove the hy-
drofluoric acid as per the manufacturer's instructions.
• Dry the restoration in an air stream.
Cooling
• It is recommended to silanate the etched surfaces immediately.
tem-
• At chairside, apply silane only to those surfaces required for ad-
perature
hesive cementing.
L tL
• Allow to soak for 60 seconds. If the silanize layer is no longer
liquid, add more silane. Blow-dry in a powerful air stream. (Rec-
ommended material: Calibra® Silane Coupling Agent, Available
°C
separately, see complete Directions for Use).
50
3.5.2 Cementation
• Depending on the indication, Celtra Duo restorations can be
self- adhesively or fully adhesively cemented. Compatible
time-proven adhesive cementing materials are available as part
50
of the Dentsply Sirona range of products. (Recommended ma-
terial: Calibra® Ceram for fully adhesive and Calibra® Universal
for self-adhesive Cements are available separately. See com-
plete Directions for Use).
50
Inlays
Onlays
50
Crowns
Veneers
50
R = recommended
HR = highly recommended
4. HYGIENE
Cross-contamination
Do not reuse single use products.
VAC
Dispose of in accordance with
local regulations.
CAUTION
5. LOT NUMBER AND EXPIRATION DATE
min
5.1 Do not use after expiration date. ISO standard uses:
"YYYY-MM" or "YYYY-MM-DD"
-
5.2 The following numbers should be quoted in all
correspondences:
• Reorder number
-
• Lot number
• Expiration date
-
-
1:30
Self-adhesive Fully adhesive
R
R
R
HR
HR
HR
HR
3