How to sterilize the DiOS 4.0 scanner?

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1. Scanner Tip

The DiOS 4.0 (i500) scanner tip is the part of the scanner that is inserted into a patient’s mouth during scanning. The tip can be reused for a limited number of times but must be cleaned and sterilized between patients to avoid cross-contamination.


– Clean the tip using soapy water and a brush and inspect the mirror found in the tip. If the mirror appears stained, smudged or has a milky haze, repeat the cleaning process using a soft dish brush and soapy water. Carefully dry the mirror with a paper towel.


– Put the tip in a paper sterilization pouch and seal it. Make sure the pouch is airtight by using either a self-adhesive pouch or a heat-sealed pouch.


– Sterilize the wrapped tip in an autoclave with the following conditions:

  • At 121℃(249.8°F) for 30 minutes, and dry for 15 minutes

– Use an autoclave program that dries the wrapped tip before opening the autoclave.

  • Using any other method besides autoclaving does not guarantee the sterilization of the tips.

⚠️ Caution


  • The mirror in the tip is a delicate optical component and should be handled with care. The mirror needs to be clean and free from damage to ensure scan quality. Be careful not to scratch or smudge it before scanning.
  • Do not use disinfectants other than Ethanol or Ethyl alcohol to clean the mirror in the scanner tip or the surface of the scanner body. Chemical cracks may appear if improper disinfectants are used for cleaning.
  • Never autoclave a tip which has not been wrapped as this will leave stains on the mirror which cannot be removed. Check the autoclave manual for more information.
  • New tips must be cleaned and sterilized/autoclaved before using.
  • Each scanner tip can be re-sterilized up to 20 times, after which it should be disposed of properly as described in the section on Disposal.
  • Medit will not be responsible for any damage arising from improper handling.
2. Mirror

If the mirror in your scanner tip is contaminated, it may result in a bad scanning experience or poor scan quality. To clean the mirror, follow the recommended steps below.


– Remove the scanner tip.


– Apply alcohol to a clean cloth or cotton-tipped swab and wipe the tip mirror until it is clean. Make sure to use only alcohol that is free of impurities such as ethanol or propanol (ethyl-/propyl alcohol) to avoid staining the mirror.


– Wipe the mirror dry with a dry, lint-free cloth to avoid leaving dust and fiber on the mirror.


– Make sure the mirror is free from dust or fibers. Repeat the above process as necessary.


⚠️ Caution

  • Do not use disinfectants other than Ethanol or Ethyl alcohol to clean the mirror in the scanner tip or the surface of the scanner body. Chemical cracks may appear if improper disinfectants are used for cleaning.
3. Handpiece

After treatment, clean and disinfect all other surfaces of the handpiece except for the front of the scanner (optical window) as well as the end (air vent hole). Make sure the device is switched off before cleaning and disinfecting. Use the device only after it is completely dry.


– Recommended disinfection solution:

  • Denatured alcohol (e.g. ethyl alcohol or ethanol) – typically 60-70% Alco/Vol.

– The general cleaning and disinfecting procedure are as follows:

  • Switch off the device using the power button.
  • Unplug all cables from the power hub.
  • Attach the handpiece cover to the front of the scanner.
  • Apply the disinfection solution to a soft lint-free, non-abrasive cloth.
  • Wipe the scanner surface with a cloth which has been dampened with disinfectant.
  • Remove liquid with a clean, lint-free, dry, non-abrasive cloth.

⚠️ Caution

  • Do not clean the handpiece when the device is turned on as the fluid may seep into the scanner and cause a malfunction.
  • Do not use disinfectants other than Ethanol or Ethyl alcohol to clean the mirror in the scanner tip or the surface of the scanner body. Chemical cracks may appear if improper disinfectants are used for cleaning.
  • Only use the device after it is completely dry.
4. Other Components

– Apply the disinfection solution to a soft, lint-free, non-abrasive cloth.


– Wipe the component surface with a cloth which has been dampened with disinfectant.


– Remove liquid with a clean, lint-free, dry, non-abrasive cloth.


⚠️ Caution

  • Do not use disinfectants other than Ethanol or Ethyl alcohol to clean the other scanner components. Chemical cracks may appear if improper disinfectants are used for cleaning.
5. Disposal

– The scanner tip needs to be sterilized before disposal. Sterilize the tip as described above.


– Dispose of the scanner tip as you would other clinical waste.


– The other components are designed to conform with the following Directives.

  • RoHS, Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment. (2011/65/EU)
  • WEEE, Waste Electrical and Electronic Equipment Directive. (2012/19/EU)

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