Check the listing for details. Dental Sensor Positioning System Sensor Dental Film Fixation X-Ray DentistryTool. Color: SENSOR 2.0, Condition: New. Listed at 59.27 USD. Each intraoral bite block is equipped with a dedicated positioning bar, which is convenient to install and connect with the external aiming ring. -The holder on the bite block is compact and easy to hold the sensor.he rubber gaskets help hold the sensor frmy without damaging it.