Table 3.

Some advices for better scanning.

Target	Actions
To avoid lint, stains, and dirt on the optical components:	Select disinfectants that do not produce faded stains and are nontoxic [4, 22].
	Do not allow any solution to dry.
	Sterilization in wrapped pouches to protect the optical parts and to guarantee the use of sterile tip.
	Put outside the pouch a type 5 chemical integrators (UNI EN ISO 11140), to avoid the possible interference of their released products.
	Attention before and during steam sterilization: in particular, it is important:
	Check water quality, the cleanliness of the steam autoclave camera and trays, autoclave loading, and perfect drying of the wrapped pouches.
To protect optical component from damage:	Put the pouch far from other devices.
	Use absorbent TNT gauze for protection.
	It is not known if it is better: (a) to put the mirror tip towards the paper or the plastic side of the barriers, (b) up or down in the autoclave camera.
To prevent fast deterioration of the plastic parts of the unit:	Use single-use wipes soaked with disinfectant, which also act quickly against antibiotic-resistant strains and have good compatibility with optical and plastic parts [4, 22].