Oral Health and Ageing: Why Your Gums Matter for Your Body

You brush your teeth one morning and notice a little blood when you spit into the sink. There's no pain, so you rinse your mouth and carry on. A few years later, you see an older family member struggling to chew without their dentures. You assume it's simply what happens as people age. However, oral health and ageing don't work quite that way. Losing teeth isn't an unavoidable part of growing older. According to the World Health Organization (WHO), tooth loss is often the result of years of untreated tooth decay and gum disease. And your gums matter beyond your smile. Research has found links between long-term gum disease, diabetes and heart disease, although these connections don't necessarily mean one causes the other. Understanding these changes early can help you protect your teeth and gums throughout life.

How common are oral health problems worldwide?

Oral health problems affect billions of people, yet many cases can be prevented or treated with proper dental care. According to the World Health Organization's 2022 Global Oral Health Status Report, around 3.5 billion people, or 45% of the world's population, were living with oral diseases. Three out of four affected people lived in low- and middle-income countries, including India. The most common problems include tooth decay, severe gum disease, tooth loss and oral cancers. The report estimated that:

• 2.5 billion people had untreated tooth decay.

• 1 billion people were affected by severe gum disease, a major cause of tooth loss.

The WHO's updated 2025 oral health fact sheet estimates that nearly 3.7 billion people worldwide are affected by oral diseases. These numbers highlight why looking after your teeth and gums matters throughout life, rather than waiting until pain or tooth loss becomes a problem.

Why do gums and teeth change as you age?

Ageing does not rot teeth by itself. What changes is the time your teeth and gums have spent facing the same daily stresses: sugar, plaque, tobacco and missed dental visits. Damage adds up quietly.

Gum disease starts small

Gum disease (periodontal disease) affects the tissues that hold your teeth in place. WHO describes the early stage, called gingivitis, as bleeding or swollen gums, sometimes with pain and bad breath. In the severe stage, called periodontitis, the gum pulls away from the tooth and the bone that supports it. Teeth can become loose and sometimes fall out. WHO names poor oral hygiene and tobacco use as the main risk factors. The early stage rarely hurts, so bleeding when you brush is easy to ignore.

Decay keeps going in older mouths

Tooth decay (caries) happens when plaque on the tooth turns free sugars into acid that slowly destroys the tooth. Free sugars include added sugar in chai and sweets plus the sugar in honey, syrups and fruit juice. It is not only a children's problem. A 2022 review of studies worldwide in people aged 45 and over estimated that 45% had active tooth decay and 22% had lost all their teeth. The authors note that older adults now keep more of their natural teeth, which means more teeth that can still decay.

Total tooth loss climbs after 60

According to WHO, complete tooth loss affects almost 7% of adults aged 20 and older worldwide. For people aged 60 and above, the figure rises to an estimated 23%. WHO calls tooth loss "the end point of a lifelong history of oral disease". Losing teeth can also change what you eat. Roasted chana, raw salads, fruit and nuts are often the first foods to go. Older adults need exactly those foods. Our guide to foods to eat after 50 covers why that matters.

Is gum disease linked to diabetes?

Gum disease is linked to diabetes. The link runs both ways. In late 2017, the International Diabetes Federation and the European Federation of Periodontology published a joint consensus report on gum disease and diabetes. It found strong evidence that people with periodontitis have a higher risk of raised blood sugar and insulin resistance. Among people who already have diabetes, those with periodontitis had significantly higher HbA1c (a three-month average of blood sugar) than those with healthy gums. Periodontitis was also associated with a higher risk of developing type 2 diabetes.

The report also looked at what happens when a dentist cleans infected gums thoroughly. In people with diabetes, this professional gum care was safe and was associated with HbA1c falling by 0.27% to 0.48% after three months. Longer-term results were inconclusive, so this is a support for diabetes care, not a replacement for it. If you have diabetes, tell your dentist. If your dentist finds advanced gum disease, ask your doctor whether a blood sugar test makes sense. Habits that steady blood sugar, such as a short walk after meals, help the whole body, gums included.

What does gum health have to do with your heart?

In 2019 the European Federation of Periodontology and the World Heart Federation held a joint workshop on this question. Their consensus report, published in 2020, notes that severe periodontitis affects 11.2% of the world's population and is the sixth most common human disease. The experts concluded that there is a significant body of evidence for independent associations between severe periodontitis and cardiovascular disease, meaning heart disease and stroke.

An association means the two travel together more often than chance would explain. It does not prove that gum disease causes heart attacks. Smoking, diabetes and diet affect both, which is part of why the link is hard to untangle. Researchers suspect long term inflammation (the body's ongoing response to infection in the gums) is one connection, but this is still being studied. The same report advises dentists to take extra care with gum procedures in people taking blood thinners. If you take any heart medication, tell your dentist before a cleaning or extraction. Never stop a prescribed medicine on your own before a dental visit.

Tobacco, gutka and the Indian mouth

Tobacco does serious harm to the mouth. Many Indians use it. According to WHO India, nearly 267 million adults in India, 29% of those aged 15 and over, used tobacco in the Global Adult Tobacco Survey of 2016 to 2017. The most common form is smokeless tobacco: khaini, gutka, betel quid with tobacco and zarda. Some people who chew gutka or khaini believe it is milder than smoking. The research on Indian users says otherwise. A systematic review of Indian studies found that smokeless tobacco use was linked with more than five times the odds of oral cancer (odds ratio 5.55). In studies that also adjusted for smoking, alcohol and other factors, the odds were still about four times higher. Women who used it had an even higher odds ratio of 12.0. The authors estimated that about 60% of mouth cancer cases in India could be attributed to smokeless tobacco, roughly 49,000 cases a year.

WHO also lists areca nut (supari) as a leading cause of oral cancer alongside tobacco and alcohol. It names tobacco as one of the two main risk factors for gum disease. That warning covers chewed tobacco as much as cigarettes and bidis. If you smoke or chew tobacco, stopping is a key step for your mouth. Your doctor, a dentist or a tobacco cessation centre can help you plan a quit. Watch for warning signs too. The NHS advises seeing a GP or dentist if you have a mouth ulcer that has lasted more than 3 weeks, a lump in your mouth, on your lip, on your neck or in your throat, a red or white patch in your mouth, pain in your mouth that is not going away, difficulty swallowing or speaking, or a hoarse voice that does not go away (NHS, Mouth cancer symptoms). Tell your dentist too if you find it hard to open your mouth fully.

Everyday habits to keep your teeth and gums healthy

Looking after your oral health doesn't require a complicated routine. A few consistent habits can help prevent tooth decay, gum disease and tooth loss as you age. Here are seven things worth doing:

1. Brush twice a day. Use fluoride toothpaste containing 1,000 to 1,500 ppm fluoride, as recommended by the WHO. You can check the fluoride concentration on the toothpaste packaging.

2. Clean between your teeth daily. Use dental floss or interdental brushes to remove plaque and food particles from areas your toothbrush cannot reach.

3. Limit sugary foods and drinks. Frequent sweet chai, biscuits, sweets and packaged juices increase the risk of tooth decay. Try reducing how often you consume them, particularly between meals.

4. Choose water more often. Make plain water your main drink instead of sugary beverages. It also helps rinse away food particles after meals.

5. Avoid tobacco and areca nut. Smoking, gutka, khaini, bidi and chewing supari can harm your gums and increase the risk of oral cancer.

6. Limit alcohol consumption. Alcohol is another risk factor for oral health problems, particularly when combined with tobacco use.

7. Visit your dentist regularly. Get dental check-ups and professional cleaning as often as your dentist recommends. Don't wait for toothache or bleeding gums before booking an appointment.

If you wear dentures, clean them every day and remove them before sleeping unless your dentist advises otherwise. These small steps can help protect your natural teeth and keep your gums healthier for longer.

Also read: Why Do You Crave Sugar All the Time? Common Causes and What Helps

When should you see a dentist?

The NHS advises seeing a dentist if (NHS, Gum disease):

• Your gums bleed when you brush your teeth or eat hard foods

• Your gums are painful and swollen

• You have bad breath

It advises asking for an urgent dentist appointment if you have gum disease and other symptoms such as very sore and swollen gums, teeth becoming loose or falling out, ulcers or red patches in your mouth, or a lump in your mouth or on your lip. For an ulcer, lump or patch that lasts, the mouth cancer signs in the tobacco section apply too. See your dentist as well if your gums seem to be pulling back from your teeth or your bite changes. Tell your dentist about any medication you take, particularly blood thinners and diabetes medicines. If you have diabetes or heart disease, ask your doctor how often your gums should be checked.

Check your own Health Age

Health Age is a free Aora tool is a wellness estimate built from lifestyle answers such as sleep, activity, smoking, alcohol and diet. It shows an estimated age next to your real age and the habits that move it most. It is not a diagnosis and does not look at your teeth or gums, so your dentist remains the right person for that.

That pink streak in the basin is worth a second look. A dentist visit this month costs far less than the teeth it can help you keep.

Sources

• WHO highlights oral health neglect affecting nearly half of the world's population (World Health Organization, 2022)

• Oral health fact sheet (World Health Organization, 2025)

• Global prevalence of edentulism and dental caries in middle-aged and elderly persons: a systematic review and meta-analysis (Journal of Dentistry, 2022)

• Scientific evidence on the links between periodontal diseases and diabetes: consensus report of the IDF and EFP joint workshop (Journal of Clinical Periodontology, 2018)

• Periodontitis and cardiovascular diseases: consensus report (Journal of Clinical Periodontology, 2020)

• Smokeless tobacco-associated cancers: a systematic review and meta-analysis of Indian studies (International Journal of Cancer, 2016)

• Tobacco in India (World Health Organization India)

Medical Disclaimer: This article is for general information and is not a substitute for advice from your doctor. Speak to a qualified healthcare professional before starting any supplement, especially if you are pregnant, breastfeeding or taking medication.