Dentsply Sirona CEREC Zirconia meso, Инструкции по обработке

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8 Creating the restoration
8.6 Additional notes: procedure after sintering Dentsply Sirona
Processing instructions CEREC Zirconia meso
18
66 21 101 D3487
D3487.201.18.02.02 02.2018
8.6
Additional notes: procedure after sintering
In the case of yellow staining of CEREC Zirconia meso restorations
after the sintering process, the high-temperature furnace should be
cleansed by performing an empty run. The details in the manuals for the
respective furnaces are to be adhered to in this case.
This is not necessary for CEREC SpeedFire due to the different heating
concept.
Sintering beads that adhere are to be removed carefully.
After the sintering process, the restorations from CEREC Zirconia meso
blocks must be cooled down to room temperature before further
processing.
8.7
Rework
The surface condition of ceramic materials is decisive for their bending
strength. Reworking sintered restorations with milling tools, especially in
the connector region, must be avoided at all costs.
Corrections to the grounded restoration should be completed if possible
before sintering.
One of the following tools should be used if rework is required in
sintered state:
● Wet grinding turbines (approx. 2.5 bar - 3 bar),
● Rubber polisher (low speed),
● With primary telescopes, a milling device with water cooling and low
grinding pressure,
● Soft diamond rubber polisher (Dentsply Sirona recommends: EVE
DIASYNT PLUS / DIACERA).
Follow the manufacturer's instructions for the tools.
The sintered restorations should also be polished prior to applying the
enamel coating in order to prevent abrasion to the antagonist following
potential loss of shine.
CEREC Zirconia meso can be polished with all standard polishing
agents for zirconia ceramics (Dentsply Sirona recommends: EVE
DIASYNT PLUS / DIACERA). Subsequent heat treatment
(depressurization fire) is not necessary.
NOTICE
Observe usage information
Etching with hydrofluoric acid does not produce a retentive surface.
Silanization is not required
Please observe the information on use of the fastening materials of
the corresponding manufacturers.