Okay healthwise? Yes, it probably wouldn't cause much damage to your gums, but there is still no guarantee you wouldn't get gum, tongue, or throat cancer. It would be better than rubbing consistently, but still not healthy.
yes,it is
no it isn't it is bad for your hair you want to keep it neat and healthy at least once in four years is ok
you take it twice a week
It could stay good for about a week or a week in a half tops.
If you mean only two times a week, it depends on the class and the student. Some kids need more practice than just twice a week and others would still do OK in class with that.
dip them in milk twice a day it relly works
That depends, If you have really dry and damaged hair ( like mine.) that's ok. But you can't do that everyday though, once or twice a week can do no harm :)
Yes, the Saluki dog breed should be groomed twice a week.
The letter "e" because its twice in lifetime, once in year, twice in week, and never in a day
that is ok...
2 a week
It is used for both senses, but the proper meaning is twice a week.