1 Gingivitis is a serious cause not only of tooth loss, and bad breath, but of infection of the heart valves. 2  Don't stop brushing if your gums bleed, but do switch to a softer toothbrush. 3  There are toothbrushes with timers that tell you how long to brush.
http://www.wikihow.com/Brush-Your-Teeth
How to brush your teeth. Make sure you brush all the surfaces of all your teeth, which should take about two minutes. Remember to brush the inside surfaces, outside surfaces and the chewing surfaces of your teeth.
http://www.nhs.uk/Livewell/dentalhealth/Pages/Teethcleaningguide.aspx
Regular flossing may also reduce gum disease and bad breath by removing plaque that forms along the gum line. It's best to floss before brushing your teeth. 1  Take 12-18 inches (30-45cm) of floss or dental tape and grasp it so you have a couple of inches of floss taut between your hands. 2  Slip the floss or dental tape between the teeth and into the area between your teeth and gums as far as it will go.
http://www.nhs.uk/Livewell/dentalhealth/Pages/Teethcleaningguide.aspx
Most dentists recommend that you brush at least twice a day -- once in the morning and once before bed. If you can fit in a third time somewhere in the middle, even better! Try brushing at a 45° angle as this helps remove plaque and food/drink particles on your teeth better than if you did it normally.
http://www.wikihow.com/Brush-Your-Teeth
Brush your teeth for about two minutes last thing at night before you go to bed and on one other occasion everyday. Your dentist or hygienist may give you further advice based on your own dental health and needs.
http://www.nhs.uk/Livewell/dentalhealth/Pages/Teethcleaningguide.aspx
Gently brush your tongue. After you've cleaned your teeth, use the bristles of your toothbrush to gently clean your tongue. (Don't press too hard, or you'll damage the tissue.) This helps keep bad breath away and gets rid of bacteria on your tongue.
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When you brush, you remove plaque—a thin film of bacteria that sticks to your teeth and will cause cavities, gum disease, and if you ignore it long enough, will cause your teeth to fall out! Bad breath due to a smelly mouth may keep people away from you especially your elder siblings..
http://www.wikihow.com/Brush-Your-Teeth
1 Take 12-18 inches (30-45cm) of floss or dental tape and grasp it so you have a couple of inches of floss taut between your hands. 2  Slip the floss or dental tape between the teeth and into the area between your teeth and gums as far as it will go.
http://www.nhs.uk/Livewell/dentalhealth/Pages/Teethcleaningguide.aspx
There are several types of dental fillings and each takes a different amount of time to set. Being aware of the setting time will give you a general time frame for which you should be especially careful not to inflict any damage on the filling. 1  Gold, amalgam, and composite fillings take about 24-48 hours to set.
http://www.wikihow.com/Care-for-a-Tooth-Filling
3. Spend at least three minutes brushing. Brushing just a few teeth at a time, work your way around your mouth in a cycle (start outside lower left round to outside lower right then outside upper right to upper left, change to inside uppers before inside upper right ,inside lower right, finally inside lower left).
http://www.wikihow.com/Brush-Your-Teeth
how long do you brush your teeth for
You brush your teeth for about two minutes. It takes about two minutes to brush your teeth.