Further Information - Straumann CARES Gebrauchsanweisung

Caution: Use the devices immediately after ster-
ilization. Do not store sterilized devices.
Note: To prevent tension cracks in temporary cop-
ings made from PMMA for Solid and Cementable
abutments, do not use the following: alcohol, UV
radiation, radiation steriliza-tion (gamma steriliza-
tion), immersion in liquid for more than one hour
or temperatures over 60 °C/140 °F.
11. Procedure
Use and Handling of the Straumann® CARES®
Abutments CoCr for the dental technician
Caution: The implant connection and the screw
channel of the Straumann® CARES® Abutment
CoCr must not be sandblasted with AI₂O₃, ground
or polished. Sandblasting with AI₂O₃, grinding or
polishing of the implant connection may cause the
product to fail. An Implant analog or polishing aid
should be used to protect the implant connection
during the finishing process.
Restoration design with CAD software
Use Straumann-approved software (such as
ѹ
Straumann® CARES® Visual) to design the cus-
tomized abutment.
Alternatively, fabricate, scan and process a wax-
ѹ
up using Straumann-approved software (e.g.
Straumann® CARES® Visual).
Please note: Always ensure that the angulation
of the abutment in relation to the implant axis
does not exceed 30 degrees for the RB, WB, RC, RN
∅4.1 and WN prosthetic platforms. The NC and
RN ∅3.3 prosthetic platforms are not indicated
for restorations requiring angulation correction.
Note: For all scan systems ensure that the scan
accurately reflects the patient anatomy and that
scan artifacts are removed.
Processing
Directly veneered screw-retained restorations
1. Insert the Straumann® CARES® CoCr Abutment
into the analog connection.
2. Whenever used with implant analogs, all com-
ponents should be torqued hand-tight.
3. Secure the mounted abutment to the an-
alog with the appropriate screw using the
Straumann® SCS Screwdriver.
Fabricate a directly veneerable CARES® Abut-
ment CoCr to obtain a screw-retained resto-
ration.
In this processing technique, various layering
ѹ
materials are fired on the delivered framework.
All commercially available veneering ceramics
ѹ
that are intended for layering cobalt-chromium
alloys and that are suitable for a CTE value of
14.3 x 10 K can be used. The processing instruc-
-6 -1
tions for the veneering material manufacturers
shall be followed.
Before layering, the abutment shall be cleaned
ѹ
with a steam jet. An oxide firing or control fir-
ing is not required for veneering ceramic due to
the exclusion of casting faults, inclusions and
blowholes.
For successful results with the CARES® Abut-
ѹ
ment CoCr the following guideline shall be
observed:
The thickness of the veneering ceramic shall
–
be even and not exceed 2 mm.
When using opaquer containing titanium dioxide,
it should be noted that the titanium dioxide and
chromium from the alloy may form a yellowish
green pigment and thus result in discolorations
at the margin.
Please note: Repeated firings and longer resting
time in ceramics ovens may increase the CTE value
of the ceramic. The result is tensile stresses in the
ceramic, which can lead to fissures. All firings –
except opaquer firings – should be exposed to
slow cooling.
4. During firing, the CoCr abutment forms an ox-
ide layer. Remove the oxide layer at the implant
connection as follows: Indirect sandblasting
with glass beads (50µm) with 2 bars pressure
after the final firing step. In any other area of
the abutment the oxide layer may be removed
5. Clean the restoration before sending it to the
dentist.
6. Include these instructions for use when sending
the restoration to the dentist.
Use and handling of the Straumann® CARES®
CoCr Abutments for the clinician
Caution: The implant connection and the screw
channel of the Straumann® CARES® Abutment
CoCr must not be sandblasted with AI₂O₃, ground
or polished. Sandblasting with AI₂O₃, grinding or
polishing of the implant connection or the screw
channel may cause the product to fail. In case of
direct-veneering the oxide layer at the implant
connection should be removed as follows: Indirect
sandblasting with glass beads (50µm) with 2 bars
pressure after the final firing step.
Note: Straumann abutments are inserted into the
implant without applying cement. Straumann®
CARES® Abutments CoCr are inserted and tight-
ened using the Straumann® SCS Screwdriver.
Placing the restoration
1. Remove the restoration from the master cast
or the analog.
2. Clean, disinfect and sterilize the device as de-
scribed in sections 9 and 10 of these instruc-
tions for use.
3. Remove the healing cap or temporary resto-
ration.
4. Thoroughly clean and dry the interior of the
implant and abutment.
5. Make sure that the retentive elements of the
abutment-implant connection are properly
aligned for all abutments.
6. Secure the mounted Straumann® CARES® Abut-
ment CoCr to the implant with the appropriate
screw using the Straumann® SCS Screwdriver,
Ratchet and Torque Control Device. Apply a
tightening torque of 35 Ncm (see also table
below).
Warning: Always ensure that surfaces of
threads and screw heads are clean and that a
new screw is used for the restoration. Insert
the screw aligned with the implant axis (do
not insert tilted). Ensure correct handling of
the Torque Control Device. Torques greater
than 35 Ncm may result in failure of the screw,
abutment and/or implant. Torque values less
than the recommended values may result in
loosening of the abutment, which may lead to
screw, abutment and/or implant failure.
7. Use the respective torque according to the ta-
ble below:
Device type Tightening
torque
Abutments 35 Ncm
(permanent)
Temporary 15 – 35 Ncm
abutments
Components on Hand-tight
implant analogs
Please note: Once the Straumann abutment has
been secured to the implant using the indicated
torque, it should not be removed.
For directly veneered screw-retained restorations:
a) Cover the screw head with an appropriate ma-
terial (e.g. wax or gutta-percha).
b) Seal the screw channel with an appropriate
material (e.g. composite filling material). This
allows for later removal of the abutment in case
a crown replacement becomes necessary.

12. Further information

For additional information about the use of
Straumann products, please contact your
local Straumann representative or visit
www.straumann.com.
13. Please note
Practitioners must have knowledge of dental im-
plantology and instruction in the handling of the
Straumann product described herein ("Straumann
Product") for using the Straumann Product safely
and properly in accordance with these instruc-
tions for use.
Special
considerations
n/a
Tighten only to
35 Ncm if the
implant is fully
osseointegrated
n/a
3