Operator's Manual

Taking the First Human X-Ray
0000679 | 18.12.2020 DC-Air™ Operator’s Manual 16 | 30
4 TAKING THE FIRST HUMAN X-RAY
4.1 Placing the Sensor into a Sensor Barrier
Place the sensor into a disposable sensor barrier before each use, before placing the sensor onto the holder
and into the patient’s mouth. See the list of accessories in “Appendix: E: Accessories” for more information on
recommended sensor barriers and sleeves.
Never use or place the DC-Air™ sensor in a patient’s mouth without the use of an approved sensor
barrier. Barriers recommended for use with DC-Air™ sensor are listed in “Appendix E: Accessories”.
Only use intact bags. Remove and dispose of the bag after each use.
4.2 Positioning in the Holder
Position the sensor in the sensor holder as per the instructions provided by the manufacturer of the holder.
4.3 Exposing the Sensor
DC-Air™ sensor captures X-rays using a direct conversion layer. Direct conversion produces images of the
highest sharpness. Additionally, CMOS behind the direct conversion layer has a High Dynamic Range (HDR)
feature which gives the user the easiness in the workflow to choose one exposure setting for an entire Full
Mouth Series of X-rays (FMX).
DC-Air™ sensor system can be used with any approved wall- or wheel-mounted intraoral X-ray generator, and
portable and handheld X-rays generator. The type of X-ray systems that integrate with the DC-Air™ sensor
system are wall-mounted or wheeled X-ray generators (both AC and DC) with a tube current between 2 and 15
mA inclusive, and with a tube voltage between 50 and 75 kV inclusive, with in-built controls to set exposure
parameters. Generators allow variable mA/kV to be selected, all will control the exposure time. Alternatively,
the DC-Air™ sensor system can be used in conjunction with a portable, handheld X-ray generator with a tube
current between 2 and 10 mA inclusive, and with a tube voltage between 50 and 75kV inclusive.
The optimal exposure time of the DC-Air™ sensor will depend on the mA available by the X-ray generator. In
a typical case of a wall- or wheel-mounted X-ray generator operating in the range of 6 – 8 mA with an 20cm
(8”) cone, the optimal exposure time is 0.2s for any position in an FMX or any other X-ray intraoral template.
This means that due the HDR feature of the DC-Air™, there is no need for the user to adjust the generator
settings regardless the position in the patient’s mouth, therefore improving workflow. Furthermore, for ultra-
high-definition images, the user may expose DC-Air™ sensor up to 0.5s.
The DC Air™ docking station with the receiving PC or laptop should be positioned not further than 3m (9ft.)
from the dental chair where the X-ray examination is performed, and if possible, sideways to the patient or in
front of the patient.