Cerec Optispray; Direction Of Application; Marking The Cervical Step - Sirona Cerec AC Operating Instructions Manual

7 Operation
7.3 Preparations
36
Operating Instructions for the Acquisition Unit Sirona Dental CAD/CAM System
7.3.2

CEREC Optispray

1. Clean and dry the surface to be coated.
CEREC Optispray
2. Place the spray head with cannula/nozzle onto the spray can.
3. Check that the cannula/nozzle is seated correctly before each use by
pulling it gently.
4. Shake the container before use.
5. Cover the respective area with the spray in a targeted manner. The
cannula/nozzle can be rotated as required to enable optimal coating
from all directions. The spray nozzle should be held approx. 10-15
mm away from the object.
6. Take an optical impression with the Bluecam as usual.
7. After taking the 3D optical impression, clean the surface with an air/
water spray.
8. Replace the cannula/nozzle after each use.
7.3.3

Direction of application

Direction of application
right
It is essential that the material is applied perfectly, especially in the edge
and marginal areas. It is therefore advisable to aim the cannula directly at
all edge and marginal areas. Spraying directly onto the base may result
in an excessively thick layer, which in turn can result in fitting inaccuracy.
7.3.4

Marking the cervical step

The cervical and lateral edges are coated from the proximal direction.
Marking the cervical step
If the cervical step is located at the same height as the edge of the
gingiva, the spray may cover the borderline between these two
structures.
This boundary can be marked again by running a fine probe along the
step or laterally pulling a rubber cofferdam.
Before you start spraying, you can loosely insert dental floss and then
carefully remove it again.
NOTICE
Avoid applying too much or not enough coating. We recommend
blowing the object clean with compressed air after spraying.
Sirona Dental Systems GmbH
wrong
63 33 582 D3492
D3492.201.01.09.23 09.2011