Parents often ask this.  Following is a chart with approximate ages.  Be aware that these are only averages, and that your child's tooth development may vary somewhat.

When Baby Teeth Appear

When Permanent Teeth Appear

When Should My Child First Visit the Dentist?

What Will Happen at the First Visit?

How Can I Prepare My Child?

How Can I Help My Child Keep a Healthy Smile for a Lifetime?

Are There Other Concerns?

Baby Teeth Will Be Lost.  Why Should They Be Fixed?

At What Age Will My Child's Teeth Appear?