Teeth and diabetes

People with diabetes are about three times more likely to develop periodontitis. The risk is significantly higher in individuals with poor glycemic control (higher HbA1c levels).

The mechanisms behind this increased risk are rooted in the biology of diabetes:

Hyperglycemia and Inflammation: High blood sugar levels lead to a state of chronic inflammation throughout the body, including the gums. This exaggerated inflammatory response means the gums react more severely to the bacteria in dental plaque.

Advanced Glycation End-products (AGEs): Elevated blood sugar leads to the formation of AGEs. These compounds accumulate in the gums, interact with immune cells, and further fuel destructive inflammation and oxidative stress.

Impaired Immunity: Diabetes can weaken the body’s defense mechanisms, including the ability to produce functional antibodies against oral bacteria. This makes it harder to fight off the infections that cause periodontitis.

Altered Healing: Diabetes can impair blood flow and slow down the healing process, making it harder for periodontal tissues to recover from damage.

The connection isn’t one-sided. Periodontal disease can adversely affect blood sugar control.

• Systemic Inflammation: The gums are a large area of inflamed tissue. Bacteria and inflammatory chemicals (cytokines like TNF-α and IL-6) from the infected gums can enter the bloodstream.

• Increased Insulin Resistance: These circulating inflammatory substances can worsen insulin resistance throughout the body, making it harder to control blood glucose levels.

• Impact on HbA1c: Longitudinal studies have shown that the presence and progression of periodontal disease are associated with an increase in HbA1c over time in people without diabetes, suggesting it may be a risk factor for developing the condition. In those with diabetes, severe periodontitis is linked to poorer long-term glycemic control.

The positive outcome of this bidirectional relationship is that treating periodontal disease can help improve diabetes management.

• Non-surgical periodontal therapy (a deep cleaning known as root surface debridement) aims to remove the bacterial biofilm and calculus from the teeth.

• Multiple meta-analyses conclude that this treatment can lead to a reduction in HbA1c of approximately 0.4%.

• This improvement is comparable to the effect of adding a second-line diabetes drug and can significantly reduce the risk of diabetes complications.

Increased Risk: People with diabetes must be aware of their significantly higher risk for serious gum disease.

Look for Signs: Symptoms include red, swollen, or bleeding gums; persistent bad breath; receding gums; loose teeth; and spaces opening between teeth.

Collaborative Care is Essential:

1. • Medical Professionals: Doctors and diabetes educators should ask patients about their oral health, warn them of the risk, and encourage regular dental check-ups.

   • Dental Professionals: Dentists and hygienists should screen patients with severe or treatment-resistant periodontitis for diabetes and communicate with their physicians.

   • Prevention and Management:

     • Maintain excellent blood glucose control.

     • Practice good oral hygiene (brushing twice daily and cleaning between teeth).

     • Do not smoke.

     • Have regular professional dental examinations and cleaning