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8. Characteristics
Osseo 100+ is an instrument for measuring the stability
(ISQ) of dental implants. The instrument measures the
resonance frequency of a MulTipeg and presents it as an
ISQ value. The ISQ value, 1-99, reflects the stability of the
implant – the higher the value, the more stable the implant.
The instrument measures the ISQ-value with a precision
of +/- 1 ISQ unit. When mounted onto an implant, the
MulTipeg resonance frequency can vary up to 2 ISQ units
depending on the tightening torque.
By connecting Osseo 100+ to a pairable instrument
(defined in section 19), the ISQ value and battery status
is transferred. For more information, see the pairable
instrument manual and "14. Usage" below.
Warning: Use of this equipment adjacent to or
stacked with other equipment should be avoided
because it could result in improper operation.
9. MulTipeg
The MulTipeg is made from titanium and has an integrated
grip for the MulTipeg driver on top. Inspect the MulTipeg
for damage before use. Damaged MulTipegs should not be
used due to the risk of erroneous measurements.
There are different MulTipegs available made to fit
different implant systems and types. Please refer to the
updated list from the supplier.
Measurements should only be performed using
the correct MulTipegs. Using the wrong MulTipeg
could cause erroneous measurements or damages
to the MulTipeg or implant.
The instrument emits short magnetic pulses with
pulse duration of 1 ms and strength of +/- 20 gauss,
10 mm from the instrument tip. Precautions might
be necessary when using the instrument close to
cardiac pacemakers or other equipment sensitive
to magnetic fields.
10. Technical function
For bringing the MulTipeg into vibration, short magnetic
pulses are sent from the instrument tip. The magnetic
pulses interact with the magnet inside the MulTipeg and
cause the MulTipeg to vibrate. A pickup in the instrument
picks up the alternating magnetic field from the vibrating
magnet, calculates the frequency and from that, the ISQ
value.
11. ISQ-value
The stability of the implant is presented as an "ISQ value".
The higher the value, the more stable the implant. The ISQ
is described in numerous clinical studies. A list of studies
can be ordered from the supplier.
12. Implant stability
An implant can have different stabilities in different
directions. Make sure to measure from different directions
around the top of the MulTipeg.
It is highly recommended to measure the ISQ value
at implant placement to have a baseline for future
measurements. When the ISQ is measured at a later stage,
a change in the ISQ value will reflect a change in the
implant stability. This way, the ISQ progression will support
the decision on when to load the implant.
Note: The stability value is an additional parameter for
deciding when to load the implant. The final treatment
decision is the responsibility of the clinician.
13. Batteries & charging
The instrument contains 2 NiMH battery cells that must
be charged before use. A full charge takes approximately
3 hours at 20°C or 68°F. Warmer room temperature will
increase the charging time. From fully charged, the
instrument can measure continuously for 60 minutes
before it needs to be recharged. The yellow LED is lit
when the battery needs recharging. The yellow LED
flashes when the battery reaches a critical level. When the
battery reaches a critical level, the instrument shuts off
automatically. When the batteries are charging, the blue
LED is lit.
When the batteries are fully charged, the light goes off.
The charger should not be plugged in while measuring due
to the risk of power line interference making it difficult to
measure.
14. Usage
14.1 Instrument on/off
To turn the instrument on, press the operating key. A short
beep should be heard and then all display segments are lit
up for a short while. Check that all display segments are lit.
If any error code (EX, where "X" is the error number)
is shown during start up, please refer to the section
"Troubleshooting".
To turn off, press the operating key. The instrument will
power down automatically after 30 seconds of inactivity.
14.2 Measurement Osseo 100+
A MulTipeg (fig 3) is mounted onto the implant by using the
MulTipeg driver (fig 2). Use hand-tightening with 6-8 Ncm
of tightening torque. Turn on the instrument and hold the
tip close to the top of the MulTipeg (fig 5). When a signal is
received, a beep is heard and then the ISQ-value is shown
on the display for a short while before the instrument
starts to measure again.
If electromagnetic noise is present, the instrument cannot
measure. The electromagnetic noise warning is audible
as well as visible on the display. Try to remove the source
of the noise. The source could be any electric equipment
close to the instrument. When an ISQ value is displayed,
it is simultaneously sent via Bluetooth to the paired
instrument if a Bluetooth connection has been made
(as specified in section 14.3.1).
Always use a thread, such as dental floss, to secure
the MulTipeg driver when working intra-orally.
14.3 ISQ Bluetooth transfer
Connection to other equipment can result in unidentified
risks to patients, operators or others. Identification,
analysis, evaluation and control of these risks are the
responsibilities of the user. Changes to this or the paired
device can introduce new risks that require additional
analysis.
14.3.1 Bluetooth pairing
To establish Bluetooth data transfer, the instrument has
to be paired with a pairable instrument. The pairing only
needs to be done once. See section 19 for a listing of
pairable instruments.
To pair, turn on the instrument and press and hold the key
for at least 3 seconds until the instrument enters pairing
mode, "PA" is shown on the display and the beeper sounds
while pairing. To abort pairing attempts, press the key
again. When pairing is completed, a beep is heard and
measurements starts. After 2 minutes of pairing attempts
without succesful pairing, the instrument will return to
measurement mode.
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