Is Chewing Gum Good for My Teeth?

Sugar-free gum can support oral health by increasing saliva after meals, but it works best alongside good brushing, flossing, a healthy diet, and regular dental checkups.

Benefits of sugar-free gum

1. Helps reduce cavities - When a child chews sugar-free gum for about 20 minutes after meals, saliva production increases. Our saliva neutralizes acids, washes away food debris, provides calcium and phosphate to help remineralize enamel. Studies have found a reduction in cavity risk when sugar-free gum is used as an addition to brushing with fluoride toothpaste (not as a replacement).

2. Xylitol may reduce cavity-causing bacteria - Gums containing xylitol have been shown to reduce levels of Streptococcus mutans, one of the primary bacteria associated with tooth decay.

3. Helps with dry mouth - Children taking medications that cause dry mouth (such as some ADHD medications) may benefit because increased saliva protects teeth from decay.

4. Freshens breath - Mostly by increasing saliva and removing food particles—not by "killing germs."

Downsides and Risks

1. Choking hazard - This is the biggest concern in pediatrics. The American Academy of Pediatrics recommends not giving gum to children under 5 years old or until they can reliably chew and spit it out.

2. Jaw pain (TMJ) - Children who chew gum constantly or already have TMJ symptoms may develop: Jaw soreness, muscle fatigue or headaches. This is generally associated with excessive chewing rather than occasional use.

3. Stomach upset - Sugar alcohols (especially sorbitol and xylitol) can cause: gas, bloating or diarrhea. This usually occurs only with larger amounts.

4. Sugar-containing gum increases cavity risk - Regular gum sweetened with sugar feeds cavity-causing bacteria, especially if chewed frequently. That's why the ADA only awards its Seal of Acceptance to sugar-free gums.

5. Swallowing gum - Most swallowed gum passes through the digestive tract normally. However, repeated swallowing of large amounts of gum has caused intestinal blockages in rare pediatric cases.

What do the dental organizations recommend? The American Dental Association supports sugar-free gum as part of a healthy oral care routine because it:

• Increases saliva

• Reduces plaque acids

• Helps strengthen enamel

• May reduce cavities

But it should never replace:

• Brushing twice daily with fluoride toothpaste

• Daily flossing

• Regular dental visits

So our practical advise for most healthy children:

• Wait until they can safely chew and spit out gum (generally age 4+).

• Choose sugar-free gum, preferably one containing xylitol and the ADA seal of approval.

• Chew for about 10–20 minutes after meals if desired.

• Limit it to a few times per day.

• Avoid if your child has jaw pain, frequently swallows gum, or is too young to chew safely.

• Don’t chew gum if you have appliances like braces, expanders or retainers since it can stick to them and pull them off or break them.