To add on, don't take your electric as tooth polisher.
Hehe...I used it so often when i 1st got it that i develop sensitive teeth, you will realise when you starts feeling sour.
well, stop my frequent brushing and everything goes fine after a few weeks :lovegrin:
Hehe...I used it so often when i 1st got it that i develop sensitive teeth, you will realise when you starts feeling sour.
well, stop my frequent brushing and everything goes fine after a few weeks :lovegrin: