Oral Health and Diabetes

30 November 2023

Diabetes is a disease that affects the whole body, including the mouth but how is it linked to oral health and what can a diabetic do to reduce the risk of complications.

If you are living with diabetes, you need to pay particular attention to your oral health and dental care, as well as keeping your blood glucose levels within the target range.

Diabetes and gum disease.

Diabetes and gum disease have a bidirectional relationship. That means they influence each other. Having diabetes increases the risk of developing gum disease and having uncontrolled gum disease increases the chances of developing type II diabetes. That’s because people living with diabetes have increased glucose levels in their saliva which feeds the bacteria living in the mouth. Equally, the bacteria present in the mouth of a pt with gum disease can escape into the blood stream resulting in worsened blood sugar control.

The worse the gum disease, the more likely the person is to suffer damage to other organs in their body.

It is important to look after your oral health and control your blood glucose levels to prevent gum disease. Treating gum disease helps to improve blood glucose levels in people living with diabetes, and people with blood glucose levels that are kept within the target range respond better to gum disease treatment.

Diabetes and tooth decay

High glucose levels in the saliva of people with unmanaged diabetes helps bacteria to thrive. This leads to an increased risk of developing tooth decay. Also, people with diabetes tend to eat smaller, more frequent meals throughout the day. Each time you eat the ph balance in the mouth is altered creating a better opportunity for bacteria to feed and acidic attacks on the teeth to occur.

Diabetes and Dry Mouth

Unmanaged diabetes can decrease saliva flow resulting in a dry mouth. Saliva is a very important bodily function and is particularly important for maintaining a healthy oral microbiome. It also moistens the mouth, lubricates the tissues, neutralises harmful acids, kills germs, prevents bad breath, defends against tooth decay & gum disease and speeds up wound healing. Having a dry mouth can lead to soreness, ulcers, burning mouth, taste disturbances and infections.

Diabetes and Oral Thrush

High glucose in saliva, lowered resistance to infection and dry mouth (reduced saliva flow) can all imbalance the oral microbiome and encourage the overgrowth of yeast (fungi) which normally live in small quantities in the mouth. This overgrowth leads to a fungal infection known as oral thrush (also called candida) Diabetics who frequently take antibiotics to fight various infections are especially prone to developing oral thrush.The fungus thrives on the high glucose levels in the saliva of people with unmanaged diabetes resulting in uncomfortable creamy white lesions on the tongue and the inside of the cheeks.

What can you do to improve your oral health.

If you are a person living with diabetes, it is recommended that you:

  • Try to keep your blood glucose levels as close to the target levels as possible. Make sure you follow your doctor’s advice about diet and take any recommended medication regularly.
  • Brush your teeth twice a day with a fluoride toothpaste.
  • Use dental floss or interdental cleaning aids at least once a day to clean thoroughly between your teeth.
  • Visit your dentist regularly so that they can check your mouth for any signs of decay, gum disease or oral diseases. Make sure you remember to tell them you have diabetes especially if it is uncontrolled.
  • Have your teeth professionally cleaned every 3 to 6 months to remove mature plaque and tartar from your teeth & gums and to receive oral hygiene home care advice.
  • To reduce the risk of developing a dry mouth drink plenty of water and chew sugar-free gum to stimulate saliva flow.
  • Don’t smoke. People with diabetes who smoke are at an even higher risk of developing thrush and gum diseaseThe good news is that people whose diabetes is well-managed have no more tooth decay or periodontal disease than people without diabetes. Good oral hygiene and a healthy cleaning regime will not only improve oral health but will also reduce the risk of diabetic complications.

The good news is that people whose diabetes is well-managed have no more tooth decay or periodontal disease than people without diabetes. Good oral hygiene and a healthy cleaning regime will not only improve oral health but will also reduce the risk of diabetic complications.