Yes. Research indicates that severe periodontitis is a risk factor for developing type 2 diabetes.
Gum disease impacts diabetes by causing chronic systemic inflammation. This, in turn, increases the body’s resistance to insulin. This bidirectional relationship means that untreated periodontal infection raises blood sugar levels. HbA1c percentages often increase while uncontrolled diabetes simultaneously restricts blood flow to the gums, impairing healing and accelerating tooth loss. Here at Enamel Dentistry Lantana, we help our patients to bridge the gap between their smile and wellness.
Medical literature supports that there is a bidirectional relationship between periodontitis and diabetes, with HbA1c having an important role [1] (Du et al., 2025). Studies have shown that periodontal treatment can lower HbA1c levels from 0.2% to 0.4%. Although this reduction may appear modest, it is considered clinically significant in the context of diabetes management. The reduction is roughly the same as adding a second medication to your daily regimen. Gum disease causes a chronic inflammatory state. Deep pockets in the gums house billions of bacteria that release toxins. In response, the immune system produces anti-inflammatory proteins such as TNF-alpha and interleukin-6. Once the oral inflammation is removed, the liver will produce less glucose, and the muscle tissues will become more sensitive to insulin. Lower blood sugar helps the gums heal faster, and once the gums have healed, they reduce inflammation, which stabilizes blood sugar levels.
Below is a table comparing the cost of ignoring gum disease versus treating it.
Treatment level | Effect on A1c | Pain | Cost |
Preventative care | Can lower A1c | Low | Low |
Deep cleanings | Can indirectly reduce A1c | Low | One-time cost |
Untreated | Raises A1c | High | Costly |
When the oral cavity is inflamed, gum disease is likely present. The inflammation releases cytokines that enter the bloodstream. Medical literature supports that activation of molecular mediators promotes the disruption of the insulin signaling pathway [2] (Thourvenot et al., 2022). These chemical messengers disrupt the signal between insulin and cells. When the cells in your body receive the insulin signal, sugar stays in the blood instead of fueling the body. This is the direct definition of insulin resistance. By treating gum disease, the infection is cleared up, resulting in decreased inflammation. Insulin sensitivity improves, contributing to enhanced glycemic control and greater stabilization of blood glucose levels. When oral inflammation is high, GLUT4 becomes trapped inside the cells. If not treated, GLUT4 stays in the center of the cell, unable to move to the surface. Sugar remains trapped in the bloodstream, leading to high blood sugar.
Since diabetic patients are more prone to infection and heal more slowly, plaque calcifies into tartar faster. Here at Enamel Dentistry Lantana, we follow the American Dental Association (ADA) guidelines, which suggest that periodontal maintenance be performed every 3 to 4 months. The ADA includes dental care in its comprehensive wellness recommendations, recognizing the oral cavity as an early indicator of systemic disease progression. Frequent visits to our team allow us to see spikes in blood sugar before your next doctor’s visit. The symptoms that our dentists look out for are gum bleeding and a fruity scent on the breath. To support patient comfort and compliance during clinically necessary visits, we provide the Enamel Dentistry comfort menu, including noise-cancelling headphones, access to streaming entertainment, and a cold beverage, creating an environment that is comforting.
According to the ADA, dental care is a medical standard. The reason is that medical experts recognize periodontal disease as the sixth complication of diabetes. The mouth is often the first place to show signs of diabetes. Before a blood test can confirm spikes in glucose, symptoms such as thrush, rapid bone loss, or a fruity smell to the breath are observed. Regular visits with the dentists allow our team to alert your primary care physician before insulin levels are out of control.
Many common diabetes medications result in dry mouth. Saliva is the mouth’s first line of defense against acid and bacteria. Without saliva, you can have an increased risk of cavities. The ADA knows that without professional intervention, a diabetic’s teeth can deteriorate fast. The ADA supports that while a link is not conclusive, some studies indicate severe gum disease may be associated with other health conditions like diabetes or stroke [3] (“Gum Disease – Periodontal Disease”).
High blood sugar stiffens blood vessels. This slows down the blood flow to your gum tissues. When the blood flow is decreased, the gums cannot fight off bacteria or heal from abrasion. The body is constantly under attack, fighting against gums that are infected. Since the immune system is constantly fighting against the bacteria, blood sugar levels are raised. Failure to address one condition may contribute to the progression and exacerbation of the other. However, if one is treated, the other can be improved.
Yes. Research indicates that severe periodontitis is a risk factor for developing type 2 diabetes.
The symptoms are not the same, but often progress much faster.
While most people go every 6 months, our dentists recommend going every 3 to 4 months.
Dr. Hardik Chodavadia, DDS, provides comprehensive general and cosmetic dentistry at Enamel Dentistry in Austin, TX. With extensive clinical experience, he specializes in preventive care, gum health, restorative dentistry, and minimally invasive aesthetic treatments. He is committed to delivering safe, evidence-based solutions that keep patients comfortable and informed at every step.
[1] Du Y, Xiao H, Luo R, Li G, and Ren Y (2025. The role of HbA1c in the bidirectional relationship between periodontitis and diabetes and related interventions: a narrative review. Front. Nutr. 12:1606223. doi: 10.3389/fnut.2025.1606223
[2] Thouvenot, K., Turpin, T., Taïlé, J., Clément, K., Meilhac, O., & Gonthier, M. P. (2022). Links between Insulin Resistance and Periodontal Bacteria: Insights on Molecular Players and Therapeutic Potential of Polyphenols. Biomolecules, 12(3), 378. https://doi.org/10.3390/biom12030378
[3] “Gum Disease – Periodontal Disease.” Mouthhealthy.org, 2023, www.mouthhealthy.org/all-topics-a-z/gum-disease.
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