Sirona Sinius CS - ApexLocator

63 22 726 D3561
D3561.201.01.03.02 05.2012
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Sirona Dental Systems GmbH 4 Operation
Operating Instructions SINIUS / SINIUS CS 4.5 Dentist element
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Apex measurement via the instrument
The Apex is measured by means of an impedance measurement
between the root canal file and mucosal electrode. The Apex
measurement signal is as follows:
● Apex cable in the instrument hose
● Metal housing of the motor
● Metal housing of the ISO adapter, if applicable
● Endodontic handpiece
● Root canal file
● Mucosal electrode
● Apex adapter
One apex instrument hose exists for each of the motors in which the Apex
cable runs, i.e. BL (A) and BL ISO C (B). The connecting threads of these
motors (C) have gold-plated contact surfaces (in BL motors with serial
number 6,000 or higher). The gold-plating ensures the electrical
conductivity.
When using the BL motor, an APEX ISO adapter (D) must be used. This
also has a gold-plated contact.
The Sirona ENDO 6:1 handpiece is intended for use in endodontic
treatments with the ApexLocator. Pull the protective silicon sleeve (E)
over the handpiece to prevent measurement errors caused by contact
with the oral mucosa.
The motor end of the Apex instrument hoses is identified by a blue
connecting nut.
Standardization of the measuring system
Before starting the apex measurement, a functional check or
standardization of the measuring system can be performed by shorting
the electrodes. This cancels out any inaccuracies caused by skips in
impedance in the measurement setup.
➢ Short the electrical measurement system. Plug in the files and hold
them directly against the mucosal electrode.
 If a short signal is heard and the distance display appears with no
bars, the standardization was successful. If not, check the
electrical connections for signs of damage.
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