Table 2.

IFU according to infection prevention from different manufacturers of scanners [19–21].

	Specific Indications
Part of the scanner	TRIOS®	iTero®
System or Base Unit [20]	(i) Surface disinfection	(i) Surface disinfection.
Monitor [20]	(i) Do not spray directly with disinfectant.	(i) Do not spray directly with disinfectant.   (ii) Use disinfectant wipes for the Scanning Unit and Base Unit.
Handheld scanner [20]	(i) Do not submerge the handheld scanner in any liquids. (ii) Do not place the handheld scanner on heated or wet surfaces.   (iii) Surface disinfection.	Not indicated in open source [21].
Medical-grade peripherals (e.g., keyboards and mice) [20]	(i) Easy disinfection.	Not indicated in open source [21].
Scanner tips with fixed mirror or detachable mirror [19]		Not needed.
	Immediately after clinical use:    (i) Detach the mirror from detachable mirror and go on reconditioning separately for tip and mirror.   (ii) Go on reconditioning for tip with fixed mirror.
	(iii) Clean manually and perfectly using soapy water and a soft dish brush.   (iv) Rinse carefully the tip.   (v) Inspect the mirror of the tip after cleaning.   (vi) Dry the mirror carefully with a paper towel.   (vii) Check to make sure it is free of lint, stains, and other kinds of dirt.
	(a) Wrap the tip using a self-adhesive pouch or heat-sealed pouch.
	(b) Sterilization using a steam autoclave class B (EN13060) and cycles at 121/134°C with drying.
	(c) Storage in proper condition.
Disposable plastic sleeve [21]		(i) Dispose of scanner sleeves according to standard operating procedures or local regulations for the disposal of contaminated medical waste.
Type of disinfectant [19]	(i) For optical windows and scanner tips: denatured alcohol (ethyl alcohol or ethanol) – typically 60-70% Alc/Vol.   (ii) Mixture free of impurities that can stain the mirror.	(i) Many commercial products.   (ii) Follow the disinfectant manufacturers' instructions for appropriate contact time.   (iii) Remove residual liquid disinfectant with a lint-free, clean cloth.
Wipe [19, 20]	A soft lint-free nonabrasive cloth.	(i) Disinfectant wipes.
Prohibition on mirror tip of the use of [19]	(i) Ammonia-based or chloride based solutions or acetone on any surface.    (ii) Acetone or any oxidizing solutions to clean the tip mirror.
Disposal of scanner tip	Normally as other clinical waste.	Normally as other clinical waste.