People think that if they
 brush twice as hard, they will do twice as much good, In fact, 
overzealous brushing can cause significant damage to the periodontal 
tissues and bones that support the teeth. If you used the same amount of
 force and brush the side of your arm, you could take your skin off. 
One way to avoid damaging
 your teeth and gums is to purchase a "soft" toothbrush featuring 
rounded bristles which are less abrasive to teeth. You should hold the 
brush between the thumb and forefinger, not with the fist. When 
brushing, do not `scrub' the teeth with a horizontal, back-and-forth 
motion.
Instead, start at the gum
 line and angle the brush at a 45-degree angle. Brush both the teeth and
 the gums at the same time. Push hard enough to get the bristles under 
the gumline but not so hard that the bristles flare out. It's also a 
wise move to limit the amount of toothpaste because it is abrasive. 
The irony is that 
dentists want people to brush longer, not harder. Children and adults 
tend to spend less than one minute at a time brushing their teeth, even 
though removing plaque from the mouth requires at least two to five 
minutes of brushing at least twice a day. Remember: brush longer, not 
harder. 
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