Bidirectional relationship between diabetes and periodontitis

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Bidirectional Relationship Between Diabetes and Periodontitis!

Diabetes is the most commonly encountered metabolic disease, not only in geriatrics but also in young adults. According to reports, 537 million people in the world suffer from diabetes.

We are aware of the most common complications of diabetes like neuropathy, nephropathy, and retinopathy. However, periodontal disease is currently considered the sixth complication of diabetes. The risk of periodontitis increases threefold in diabetic individuals as compared to their non-diabetic counterparts.

Conversely, periodontitis also has a negative impact on glycemic control. Hence, it is essential to understand this two-way correlation between diabetes and periodontal disease.

Before we delve into this correlation, let’s understand each of them separately.

What is Diabetes?

Diabetes is the increase in blood glucose levels, either due to:

  • Decreased insulin secretion (Type I Diabetes), or

  • Increased insulin resistance (Type II Diabetes)

What is Periodontitis?

Periodontitis is a severe gum infection, leading to:

  • Bone loss

  • Tooth mobility

  • Eventual tooth loss

Although poor oral hygiene is the main cause of periodontitis, systemic conditions like diabetes can significantly aggravate it.

How Are They Correlated?

I. Effect of Diabetes on Periodontitis

a) Bacterial changes:
As blood glucose levels rise, the glucose content in gingival fluid also increases. This causes a qualitative shift in the bacterial microbiota, worsening periodontal disease. This favours the growth of periodontopathic bacteria such as Porphyromonas gingivalis, Prevotella intermedia, Campylobacter rectus.

b) Impaired immune response:
Neutrophils are the first line of defense in any infection. In diabetes:

  • Recruitment of neutrophils to infection sites is impaired

  • Functionality of neutrophils is diminished

This reduces the body’s ability to destroy bacteria, leading to increased bacterial proliferation.

II. Effect of Periodontal Disease on Diabetes

Periodontal disease can induce a chronic systemic inflammatory state due to the presence of periodontopathic bacteria and their products. This inflammation:

  • Increases insulin resistance

  • Prevents glucose from entering target cells

  • Leads to a rise in blood glucose levels

Does Treating One Help Manage the Other?

Yes. Studies show that periodontal therapy, particularly scaling, helps:

  • Reduce systemic inflammation

  • Improve insulin sensitivity

  • Lower blood glucose levels

However, Type II diabetics benefit more from periodontal therapy compared to those with Type I diabetes.

Likewise, maintaining good glycemic control helps reduce:

  • The severity of periodontal disease

  • The rate of periodontal breakdown

Patient Education is Crucial

Patients diagnosed with diabetes should be educated about:

  • The potential oral complications of diabetes

  • The importance of good oral hygiene

  • The need for regular dental checkups

  • How managing diabetes can also help prevent periodontitis

This integrated approach helps in managing both conditions more effectively.

Conclusion

Patients diagnosed with diabetes must be screened for periodontitis, and vice versa. Managing one condition can mutually benefit the other.

An interdisciplinary approach between dental professionals and physicians is key to improving both oral and systemic health in patients with diabetes.

MBH/AB

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Periodontitis and diabetes have a very distinct bidirectional relationship that should be made aware to patients. An interdisciplinary approach between periodontists and diabetic specialists must be implemented.

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