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Sensor Care

Schick / Fona Sensor Care

Intraoral Sensor Sheath Removal Guide

Schick and Fona intraoral sensors are designed and tested to withstand years of normal daily use and the most common reason for sensor failure is excessive force applied to the sensor body and/or cable. To prevent damage to your sensors while removing the sheath, please follow these guidelines.


  1. Do always be gentle with the cable while removing the sheath.

  2. Do follow the four steps in the images below.


  1. Don't pull on the cable when removing the sheath.

  2. Don't start by pulling the sheath off the aiming bar and adhesive.

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Keeping the sensor attached to the positioning tab and aiming bar, grasp the aiming bar where it joins the sensor.

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Continue pushing the sensor away from the closed, tight end of the sheath.

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Still grasping the bar underneath the sheath, with your thumb, start pushing the distal tip of the sensor out of the sheath.

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As the sensor is pushed into the wider area of the sheath, be careful to prevent the sensor from falling on the floor.

Cleaning and Disinfecting Sensors

Protective Measures

IMPORTANT!  Be sure to disconnect the x-ray sensor from the remote module (USB box the sensor plugs in to) and the USB cable before performing any cleaning procedures.

The x-ray sensor should be thoroughly cleaned after each use. The following cleaning and disinfection recommendations are intended to accomplish intermediate-level disinfection and will prepare the product to be safely used and reused during its life.

The remote module is not intended to be moved or to come in contact with a patient during clinical use. If the remote module becomes soiled or comes into contact with a patient, it should be cleaned following the same protocol as the x-ray sensor.

Sensor positioning accessories, such as aiming rings, arms, and holders, should be cleaned and disinfected following the manufacturer’s instructions. If you are using the Rinn holder system, refer to their product documentation or their website for more information.

Schick and Fona's disposable tabs and holders are single–use only, as are the hygiene barriers (sheaths) that are used with them.

Recommended Cleaning

For cleaning all Schick, Fona or Sirona sensors and cameras we recommended that you either use a non-alcoholic wipe or spray a surface disinfectant into the air, catch the mist on a very soft lint-free cloth or tissue to wipe the sensor with.

  1. For Schick 33, CDR Elite, Fona Stellaris and PlusWire sensors, the cable should remain attached to the sensor.

  2. For CDR Wireless sensors, the battery pack should be removed from the sensor and cleaned, following the same steps as the sensor. Exercise care when cleaning around the battery contacts to avoid damaging them.

Never store a sensor in a sheath when it is not being used - moisture trapped on the sensor seal can cause the sealant to perish and allow moisture to enter the sensor casing.

In a clinical use environment, the health care provider should wear protective disposable gloves and cover the CDR Sensor with a hygienic barrier. Before using the CDR Sensor the first time, and before every new patient, the following protocol is recommended:

  1. Remove and discard all protective hygienic barriers and / or sheaths from the Sensor prior to removing disposable gloves.

  2. Place the Sensor on a tray covered by a disposable liner, or in a receptacle that can be thoroughly disinfected.

  3. Remove and discard gloves.

  4. Wash hands and put on a new pair of disposable gloves.

  5. Disconnect the Sensor from the Remote Module.

  6. If the Sensor or cable are visibly soiled (e.g., with blood or saliva), each should be cleaned with a soapy cloth or paper towel, and then dried with a clean lint-free cloth or paper towel.

  7. Thoroughly wipe the Sensor and cable (if applicable) with the disinfecting product recommended above. Do not expose the contacts of the sensor/remote module connection to liquid.

  8. Repeat step 7. When the Sensor has been wiped two times, continue with the following steps.

  9. Remove potential chemical build-up from the Sensor by wiping it with a sterile lap sponge saturated with de-ionized water.

  10. Use a sterile dry lap sponge to dry the Sensor or cable, as needed.

  11. Place the Sensor in a clean environment, ready for next use.

  12. Reconnect the Sensor.

  13. Remove and discard gloves.

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