003097 12.18
COLTENE/WHALEDENT AG
Feldwiesenstrasse 20
9450 Altstätten / Switzerland
T +41 71 757 5300
F +41 71 757 5301
[email protected]
DIATECH Z-Rex Diamond Instruments for Dental Practices
1. Definition
DIATECH Z-Rex are diamond burs for high
performance ceramics as for example zirconia
and aluminum oxide.
2. Indications
•
Endo access
•
Crown adjustment
•
Crown cutting
3. Contraindications
• Metal
• Amalgam
4. Safety Information
4.1.
•
Jamming of the instrument can cause
breakage. See 5.
•
Corrosion or strongly acidic and alkaline
disinfectants may adversely affect the
instruments. See 7.1 & 7.2
•
Dry heat sterilization over 140 °C / 284 °F
damages the bur. See 7.4
•
Tooth structure, pulp and adjacent fillings may
be harmed by heat development during
preparation. See 5. & 6.
•
If not cleaned and sterilized properly, there is a
risk of infection. See 7.
•
Only supplied to dentists and dental
laboratories or upon their instruction.
4.2.
•
Avoid simple cold disinfectant solutions. These
solutions do not sterilize and may contain
corrosive agents that degrade the performance
and strength of the instrument.
•
Only use a cleaning agent/disinfectant suitable
for dental rotary instruments.
•
Use a cleaning agent/disinfectant containing a
corrosion inhibitor.
•
The cleaning agent/disinfectant manufacturer’s
instructions must be obeyed.
•
Use sterilizing devices according to the
manufacturers recommended procedure. It is
the responsibility of the user to ensure that
sterilization is effective.
•
It is recommended to use a dental dam during
a procedure.
•
Only use flawless diamond instruments.
•
Only use with sufficient amounts of water
cooling (minimum 50ml/min).
5. Preparations before use
It is recommended to sterilize diamond
instruments prior to the first use (see 7.
Sterilization)
Instruments must be visually checked:
Instruments which are blunt, damaged, bent or
no longer concentric, must be removed
immediately and disposed of carefully.
An optimal cutting performance and cutting
life will be achieved by choosing the correct
speed and pressure (depending on the
substrate).
6. Recommendations for Use and Safe
Operation
The diamond instruments have to be selected
(shape, size, type) according to the type of
preparation. The ergonomic principles must be
taken into account during the working
procedures. The high-speed turbine or contra-
angle handpiece as well as rotary instruments
must be in perfect working condition. The
instruments must be fully inserted and gripped
in the high-speed turbine or contra-angle
handpiece with utmost care and checked for
imbalance and concentricity.
Before touching the preparation site with the
instrument, make sure that the bur is rotating
at the optimum speed (see packaging) and
that the cooling system is working properly.
Once the preparation has been completed,
remove the rotary instrument from the site and
allow it to come to a standstill.
The recommended force applied (reference
value 1.5 N) is based upon the diameter of the
instrument, the type of handpiece and the
substrate to be worked on. Use recommended
speeds according to the table under
“Recommended speeds”. Use lower speed and
pressure for finer grit size or for finishing, and a
higher speed and pressure for coarse grit sizes
and for bulk reduction. Only use with water
cooling (minimum 50ml/min).
Recommended speeds
Head diameter in
1/10 mm
Speed range
(RPM)
012
160 000 – 300 000
014
135 000 – 275 000
016
120 000 – 240 000
018
105 000 – 210 000
023
85 000 – 165 000
7. Cleaning after use
7.1. Manual Cleaning:
Presoak in enzymatic
cleaner (e.g. BioSonic UC32) to loosen debris
(5 min.). Brush away re-maining debris. Rinse
(2 min.), dry with absorbent lint free towel.
7.2. Ultrasonic Cleaning:
Burs may be
ultrasonically cleaned after inserting them in
bur holders (or blocks) to prevent damage. A
cycle of 10 minutes is recommended, using an
enzymatic cleaner (e.g. BioSonic UC40),
followed by a cold water rinse (2 min.). Be sure
to follow manufacturers’ in-structions.
7.3. Inspection after Cleaning:
Visually inspect
bur, with magnification if needed, to ensure
that all debris has been removed; if not repeat
cleaning process. WARNING: Burs cannot be
sterilized properly unless they are thoroughly
cleaned; free of debris.
7.4. Sterilization
Autoclaving:
Burs may be sterilized by using a
dynamic air removal sterilization cycle. Sterilize
in a pouch (e.g. SPSmedical Self-Seal Pouches)
at full cycle with a dwell at 132 °C / 270 °F
minimum for 3 minutes. Use the sterilization
device according to the manufacturer’s IFU.
8. Storage
Dental burs should be stored in a moisture free
environment. Whenever possible, the
instruments should be stored in their original
packaging to enable them to be identified and
traced.
Marking:
The
number is shown on the package.
Date of issue:
12-2018
Instructions for use
EN
