Periodontal disease has been called a silent disease. In most cases, people don't experience pain or notice the symptoms until the disease is fairly advanced. And yet, armed with a little knowledge, you should be aware of even the early stages of gingivitis. The major warning signs are red, swollen gums and gums that bleed when you brush your teeth. As the disease progresses, you may notice bad breath that won't go away, a bad taste in your mouth, and sensitive teeth. Eventually, your teeth may loosen, causing your bite - how your lower teeth fit together - to change. Even dentures may no longer fit properly.

If you answer "yes" to any of the following questions, the American Academy of Periodontology urges you to make an appointment with your dentist right away. Your dentist can screen you for periodontal disease and refer you to a periodontist if necessary:

• Do your gums bleed when you brush your teeth and/or eat hard or rough foods?
• Are your gums red, swollen, or tender? Do you have sores in your mouth?
• Are your gums receding? Have they pulled back from your teeth?
• Do your teeth appear longer?
• Are spaces developing between your teeth?
• Do you have bad breath that you can't get rid of?
• Does pus ever appear between your teeth and gums?
• Are any of your teeth loose?
• Has there been a change in the way your teeth fit together when you bite?
• If you have partial dentures, has their fit changed?