How to brush your teeth

I have just heard on the radio that brushing teeth twice a day reduces the risk of heart attack greatly. This makes it worthwhile placing tooth care on my 'game' task list- this and the agony of toothache.
It seems that gum inflammation leads directly to the narrowing of arteries. As with most things- there is a right way and a wrong way to do it. It is supposed to take two minutes and this feels like a long time.
I hope that my teeth will become whiter over time- although the damage may have been done.