How Can I Teach My Child To Brush Her Teeth?

My suggestion is to get one of those musical tooth brushes. My children have them and that's how I get them to brush their teeth.

Isn't that pathic a 13 and a 11 year old brushing their teeth to the  High School Musical Theme.

The way that i thought my children was i got them a tooth brush and i got mines and every morning i will go and brush my teeth with them, and they use to do what i did and they learned....:-)

I showed my kids pictures of mouldy teeth. She ALWAYS copied what I showed her after that!

Usually a child can be taught to brush his teeth as early as two years of age and no later than three. Parental supervision, of course, is important. And it is a good idea for the parents to brush their teeth at the same time and thus set the proper example. This also encourages the child to keep tooth brushing a part of his daily routine.
After the child has had an opportunity to do his share, the parent may want to go over the teeth again to be sure a thorough job has been done. Areas of special concern at that age are the tops or biting surfaces of all the back or molar teeth.
The cheek and tongue sides of those teeth, near the gumline, are frequently areas that decay because they are not brushed properly. Food particles are allowed to build up, causing a white ring around the teeth in this area. Even after the food material is removed, the acid from the food and bacteria may leave a white ring in the enamel as evidence of decay activity. Proper tooth brushing can do much to prevent this from happening.