How to care for the teeth brush.

Am found in a shop sterilizer for brush, but price is big, does he help for my brush, maybe my teeths are improving.
As these are three items for a healthy teeths having,are paste, brush, tape, and other are electer brush, sterilizaer are very comfortable, but not importance, as here are ultraviolet and ozone killing micro organisms, but a few are manufacturing shaves, lenses and manicure items, as function is benefit, where are also filling bacterrias, but you can create for more easy, as for one time in three days to scald brush with hot water or antiseptic as perioxide ammonium, as good wash a key water and dry after an every using, and put in a glass as head to top, as not on a shelf as horizontally, but an importance you need change brush for one time in three months, but especially after viruses.