Testing your and your child's saliva can identify your child's and your risk for tooth decay.
This is a quick and easy way to learn about your risk for tooth decay.
To prevent tooth decay, practice good oral hygiene by brushing twice a day with fluoride toothpaste and flossing daily. Limit sugary foods and drinks, opt for a balanced diet, and have regular dental checkups for professional cleanings and exams. For children, dental sealants and fluoride varnish can provide additional protection.
Oral hygiene
- Brush twice a day: Use fluoride toothpaste and brush for two minutes each time, both in the morning and before bed.
- Floss daily: Clean between teeth with dental floss or interdental brushes to remove plaque and food particles that brushing can miss.
- Use fluoride: Ensure your toothpaste contains fluoride. In areas with low fluoride in the tap water, talk to your dentist about using fluoride mouthwash or getting professional fluoride treatments.
Diet
- Limit sugar: Reduce the consumption of sugary foods and drinks, which can feed cavity-causing bacteria.
- Snack wisely: Instead of constant snacking, stick to scheduled meal and snack times. Choose "smile-friendly" snacks like cheese or apple slices and drink water, which rinses away food particles.
- Drink tap water: Tap water, especially if it contains fluoride, is beneficial for rinsing and strengthening teeth.
Professional care
- Visit the dentist regularly: Have professional checkups and cleanings at least once a year, or as recommended by your dentist.
- Consider sealants: Ask your dentist about dental sealants, which are protective coatings applied to the chewing surfaces of back teeth, especially in children.
- Use fluoride treatments: Professional fluoride varnish treatments can provide extra protection and remineralize enamel, particularly for those at higher risk
Saliva Test Kit, 12 per box
$44.99Price
Easy Steps for Testing Saliva for Tooth Decay Risk
- Don’t brush your teeth for at least 1 hour before the test.
- Eat a sweet treat (like candy or cake) that has sugar. Wait 30 minutes after eating before doing the test.
- After 30 minutes, take off the lid from your plastic cup and get the pH test strip ready. Put them on a table.
- Spit about half a teaspoon of saliva into your own plastic cup.
- If you or your child can’t spit enough, use a clean cotton swab to soak up saliva from your mouth and put it in the cup.
- Use one test strip for each person (For you and your child).
- Dip the end of your test strip about half an inch into your saliva for about 5 seconds.
- If you use a clean cotton swab to collect saliva, rub the saliva onto the end of the strip for 5 seconds.
- Shake off extra saliva from the strip. Then match the color on the strip to the pH color chart.
- Don’t let the strip dry before checking the color.
- Write down on a piece of paper:
- Your name
- The date
- Your pH level (like 4.0, 5.6, or 7.0)
Keep this paper to track your pH once a month for 4 months or as your dentist says.
- Put the lid back on the cup and throw away the cup and strip in the trash.
- If a child’s pH is 6.0 or lower, they are 4 times more likely to get cavities than kids with pH above 6.0.
- If a mom’s pH is 6.0 or lower, her child is 1.6 times more likely to get cavities than kids whose moms have pH above 6.0.

