Is Gum Good for Your Teeth?

Chewing gum is often associated with fresh breath or a quick way to clean your mouth after eating. But is it genuinely good for your teeth? The answer depends on the type of gum you choose and how you use it. When used correctly, certain types of gum can support good oral hygiene and even complement your dental care routine.

Understanding How Chewing Gum Works

When you chew gum, your mouth produces more saliva. This increase in saliva flow is one of the key reasons why chewing gum can be beneficial for your teeth. Saliva helps wash away food particles, neutralises acids produced by bacteria, and supports the natural process of remineralisation, where minerals are redeposited into tooth enamel.

However, not all chewing gums are the same. The benefits only apply to sugar-free gum, not regular varieties that contain sugar. Sugary gum feeds oral bacteria, which can lead to acid production and enamel erosion.

Why Sugar-Free Gum Can Be Helpful

Sugar-free gum contains sweeteners such as xylitol, sorbitol, or mannitol instead of sugar. These do not feed harmful bacteria, and in some cases, they even reduce bacterial growth in the mouth.

Here’s what happens when you chew sugar-free gum:

1. Neutralises acids: Increased saliva production helps to balance mouth acidity after meals.
2. Supports remineralisation: Saliva contains calcium and phosphate, which repair early enamel damage.
3. Improves breath freshness: The act of chewing and increased saliva flow help remove odour-causing particles.
4. Encourages better oral habits: Reaching for sugar-free gum instead of sugary snacks can reduce cavity risk.

According to research published by the European Food Safety Authority (EFSA), chewing sugar-free gum can reduce tooth demineralisation and help maintain enamel strength.

What the Research Says

Research from dental health organisations, including the British Dental Association (BDA), supports the use of sugar-free gum as a safe and helpful practice after meals.

Sources:

• European Food Safety Authority: EFSA Scientific Opinion on sugar-free chewing gum and reduction of tooth demineralisation
• Oral Health Foundation: Chewing sugar-free gum could save the NHS £82 million a year

These studies highlight that chewing sugar-free gum after eating can help reduce plaque acid levels and protect against early tooth decay.

How and When to Chew Gum Safely

To get the most benefit, dental professionals recommend chewing sugar-free gum for about 20 minutes after meals or snacks. This helps to stimulate saliva when it’s needed most — right after eating, when acids are at their highest.

However, it’s important to remember that chewing gum is not a substitute for brushing and flossing. It’s an additional measure, not a replacement. Brushing twice a day with fluoride toothpaste and maintaining regular dental check-ups remain essential for long-term oral health.

Who Should Avoid Chewing Gum

While most people can enjoy sugar-free gum safely, it may not be suitable for everyone. For instance:

• People with jaw pain (TMJ issues) may find that prolonged chewing worsens discomfort.
• Those with orthodontic appliances such as fixed braces might find that gum gets stuck in brackets.
• Individuals with dental restorations (like crowns or bridges) should check with their dentist first.

Your dentist can provide personal advice based on your specific dental condition and lifestyle.

Does Chewing Gum Replace Brushing?

No, chewing gum cannot clean plaque or replace your toothbrush. It simply helps neutralise acids and increase saliva production between brushing sessions. For effective oral hygiene, combine sugar-free gum with proper brushing, flossing, and professional dental cleanings.

Common Myths About Chewing Gum

Myth 1: All gum is good for your teeth

Only sugar-free gum has proven benefits. Chewing gum with sugar increases the risk of tooth decay.

Myth 2: Gum can fix bad breath permanently

Chewing gum may mask odours temporarily, but persistent bad breath could be a sign of gum disease or another dental issue.

Myth 3: Gum replaces mouthwash

While it stimulates saliva, gum cannot disinfect the mouth or remove bacteria in the same way that mouthwash can.

FAQs About Chewing Gum and Oral Health

1. Can I chew gum if I have fillings or veneers?

Yes, in most cases. Sugar-free gum is soft and non-abrasive, so it shouldn’t damage dental work. However, check with your dentist if you have delicate or temporary restorations.

2. How often should I chew gum each day?

Chewing sugar-free gum two or three times a day after meals is enough to gain the benefits. Over-chewing can strain jaw muscles.

3. What’s the best flavour to choose?

Mint is the most popular and effective at freshening breath, though flavour choice doesn’t affect dental benefits.

4. Can children chew sugar-free gum?

Yes, if they’re old enough to understand not to swallow it. Some sugar-free gums are specifically formulated for children.

5. Does xylitol gum really prevent cavities?

Studies show xylitol can reduce cavity-causing bacteria in the mouth, making it a helpful addition to sugar-free gum.

A Balanced Approach to Oral Care

Chewing sugar-free gum is a simple and effective way to complement daily oral hygiene, especially when brushing isn’t possible immediately after eating. The act of chewing helps your mouth recover from acid attacks and maintains a fresher, cleaner feeling throughout the day.

For personalised advice on protecting your smile, visit our dental clinic in Bayswater and discuss your options for preventive care and treatments.