Chewing Gum and Your Teeth: Side Effects, Benefits, and Xylito

Chewing gum has a complicated reputation in dental health. Some people avoid it because they associate gum with sugar and cavities. Others chew sugar-free gum after meals because they have heard it can protect their teeth.

So, is chewing gum good or bad for your teeth?

It depends largely on the type of gum and how you chew it. One side effect of chewing sugary gum is tooth decay. However, if you chew sugar-free gum, it can increase saliva flow and help neutralize acids in your mouth. Gum containing xylitol also offers additional benefits, although it should be viewed as a supplement to good oral hygiene, not a replacement for brushing and flossing.

7 Side Effects of Chewing Gum on Teeth

 

The biggest concern with regular gum chewing is what is in the gum and how frequently you chew it. Here are seven side effects that chewing too much gum can cause:

1. Increased Cavity Risk

When gum contains fermentable sugars, oral bacteria can use those sugars to produce acids. These acids attack enamel and contribute to demineralization, increasing the risk of cavities over time. The more frequently your teeth are exposed to sugar, the more opportunities bacteria have to produce these damaging acids.

This is why, as dentists, we always recommend sugar-free gum instead. Sugar-free varieties do not provide the same fermentable sugars that cavity-causing bacteria can metabolize.

2. Chewing Gum Jaw Pain

Your jaw muscles work every time you chew. That repetitive motion can contribute to muscle fatigue, soreness, or chewing gum jaw pain in some people.

For patients already experiencing symptoms associated with Temporomandibular Joint (TMJ) disorders, excessive gum chewing is especially uncomfortable.

3. Gum Can Be Hard on Certain Dental Restorations

If you have veneers, crowns, bridges, or other dental restorations, it is smart to be cautious with anything that requires prolonged or forceful chewing. Another side effect of gum chewing is that it increases the release of mercury vapor from your fillings into your system. This may then cause neurological problems, mental disorders, as well as chronic illnesses.

So, does chewing gum damage veneers? Not necessarily. However, sticky or excessively chewy foods can place unnecessary stress on dental work, particularly if a restoration is already compromised. That’s why at Dental Studio 101, our dentists always recommend what is appropriate based on the type, condition, and fit of your restoration.

4. High Risk of Developing Junk Food Binges

Chewing gum is frequently effective in overcoming food cravings and at reducing hunger. At least that’s what we all thought until the Journal of Eating Behaviors published a study disproving it.

According to the study, gum chewing only reduces our intake of healthy food like fruits because mint-flavored gums give them a bitter taste. In addition, the study showed that when we chew gum, we are more likely to be motivated to eat more junk food such as candies and chips.

5. You’ll Damage and Eventually Rot Your Teeth

When you chew gum, you are essentially risking your teeth to damage. Whatever kind of gum you chew, whether it is artificially flavored, sugar-sweetened or sugar-free, one thing is for sure: chewing contributes to tooth decay and dental erosion.

6. Risk of Developing GI Problems

Gum chewing causes you to swallow air, which contributes to bloating, cramping and abdominal pain. These are symptoms commonly present in people with Irritable Bowel Syndrome (IBS).

Additionally, it can compromise your digestive system by releasing enzymes and acids even if there’s no actual food to digest. This overproduction of stomach acids, therefore, leads to bloating.

7. You’re Chewing Sheep By-products

You read that right. Chewing gum contains sheep wool fat, widely known as lanolin, which helps keep the gum soft. Lanolin is a waxy substance secreted from the sheep’s harvested wool.

Though this does not pose a serious health threat, knowing where it comes from does not make it very appetizing now, does it?

Can Chewing Gum Prevent Cavities? 

It can, but often, not by itself.

Chewing stimulates saliva production. Saliva helps wash away food particles, dilute acids, buffer acidity, and supply minerals that support enamel. The American Dental Association also notes that chewing sugar-free gum for about 20 minutes after eating can help reduce plaque acids and strengthen teeth when used as part of a regular oral hygiene routine.

That makes sugar-free gum a useful addition to your routine, particularly when brushing is not immediately convenient.

Chewing Gum with Veneers, Crowns, and Orthodontics

If you have cosmetic or restorative dental work, ask your dentist before making gum a daily habit.

With veneers and crowns, avoiding excessive chewing and sticky foods can help reduce unnecessary stress on restorations. If you wear clear aligners, remove them before chewing gum. Chewing while wearing an aligner can affect the fit and trap sugars or other ingredients against your teeth.

Visit your dentist if you are experiencing:

• jaw pain
• clicking
• tooth sensitivity
• loose restoration
• discomfort when chewing

 

Frequently Asked Questions

Can chewing gum whiten your teeth?
No. Chewing gum does not whiten teeth or remove established stains. Some sugar-free gums may help freshen breath or reduce the buildup of food particles, but they cannot replace professional teeth whitening or other cosmetic treatments.

How long should you chew sugar-free gum?
Chewing sugar-free gum for about 20 minutes after a meal can help stimulate saliva flow and reduce acids in the mouth. There is generally no benefit to chewing continuously for hours, and excessive chewing may contribute to jaw fatigue or discomfort.

Is it better to chew gum before or after eating?
Chewing sugar-free gum after eating is generally more useful for dental health because it stimulates saliva when your mouth is exposed to food acids. It can be particularly helpful when you cannot brush your teeth immediately after a meal.

Can you chew gum with a dental crown?
It depends on the condition and type of crown. Sticky or very chewy gum may place unnecessary stress on a restoration. If you have a crown, ask your dentist what types of foods and habits are safest for your specific restoration.

Protect Your Smile and Oral Health at Dental Studio 101

 

Just like with anything in life, anything is good in moderation.

This guide to the side effects of chewing gum is not meant to scare you into stopping. Rather, we’re here to help you do it just enough to keep the benefits without the unwanted side effects.

At Dental Studio 101, our Scottsdale team combines preventive, restorative, TMJ, and cosmetic care to keep your smile healthy and beautiful. Whether you are concerned about jaw discomfort, protecting veneers, or improving your smile, we’re here to help.