The Connection Between Diabetes and Teeth Grinding


Diabetes is a prevalent chronic condition that affects millions of people worldwide. It is characterized by elevated blood glucose levels due to either insufficient insulin production or the body’s inability to effectively use insulin. While diabetes is primarily associated with issues related to blood sugar control, it can also have far-reaching effects on various aspects of overall health, including oral health. One lesser-known connection is the link between diabetes and teeth grinding, also known as bruxism. In this blog, we will explore the relationship between diabetes and bruxism, understanding its impact on oral health, and providing essential tips for managing both conditions effectively.

Understanding Bruxism and Its Causes

Before delving into the relationship between diabetes and bruxism, let’s understand what bruxism is and its potential causes. Bruxism is a condition characterized by involuntary teeth grinding or clenching, often occurring during sleep (sleep bruxism) or while awake (awake bruxism). It is estimated that 8% to 31% of the general population suffers from bruxism.The exact cause of bruxism remains unclear, but it is believed to be influenced by a combination of factors, including:

a. Stress and Anxiety: 

Psychological factors, such as stress, anxiety, and tension, can contribute to teeth grinding and clenching.

b. Sleep Disorders: 

Bruxism is frequently associated with certain sleep disorders, such as sleep apnea.

c. Malocclusion: 

Misalignment of teeth (malocclusion) can trigger bruxism, as it may cause an improper bite and excessive pressure on certain teeth.

d. Lifestyle Factors: 

Consumption of caffeine, alcohol, and tobacco can exacerbate bruxism symptoms.

The Connection Between Diabetes and Bruxism

Recent studies have shown a significant correlation between diabetes and bruxism. While the exact mechanism is not yet fully understood, several potential factors contribute to this relationship:

a. Neuropathy: 

Diabetes can cause diabetic neuropathy, a condition where prolonged high blood sugar levels damage the nerves. This nerve damage can affect the nerves responsible for controlling the muscles involved in chewing, potentially leading to bruxism.

b. Sleep Disturbances: 

Diabetes patients are at a higher risk of experiencing sleep disturbances, including sleep apnea and restless leg syndrome. These sleep disorders are closely linked to bruxism and can exacerbate teeth grinding during sleep.

c. Stress and Anxiety: 

Managing diabetes can be challenging, leading to increased stress and anxiety levels. As mentioned earlier, stress is a significant contributing factor to bruxism.

d. Medications: 

Some diabetes medications, such as metformin, may cause side effects like dry mouth, which can contribute to teeth grinding.

Impact of Bruxism on Oral Health

Bruxism can have several detrimental effects on oral health, regardless of whether it is related to diabetes or not. Understanding these consequences is crucial to implementing preventive measures:

a. Tooth Wear: 

The constant grinding and clenching can wear down the tooth enamel over time, leading to tooth sensitivity and an increased risk of cavities.

b. Tooth Fractures: 

Bruxism places excessive pressure on teeth, which can result in fractures, chips, or even the breaking of dental restorations.

c. Gum Recession: 

Bruxism can lead to gum recession, exposing the tooth roots and making them more susceptible to decay.

d. Jaw Pain and TMJ Disorders: 

The continuous strain on the jaw muscles due to bruxism can result in jaw pain and temporomandibular joint (TMJ) disorders.

e. Headaches: 

Bruxism can cause tension headaches and migraines, as the excessive pressure on the jaw muscles radiates to other parts of the head.

Managing Bruxism in Diabetes Patients

Given the connection between diabetes and bruxism, managing both conditions becomes essential for maintaining overall oral health. Here are some effective strategies to manage bruxism:

a. Nightguards or Splints: 

A custom-fitted nightguard or splint, worn during sleep, can help protect teeth from the damaging effects of bruxism.

b. Stress Reduction Techniques: 

Engaging in stress-reduction practices such as yoga, meditation, or deep breathing exercises can help alleviate bruxism symptoms.

c. Dental Treatment: 

Treating any underlying dental issues like malocclusion or misaligned teeth can help reduce the severity of bruxism.

d. Avoiding Stimulants: 

Limiting the intake of stimulants such as caffeine, tobacco, and alcohol can contribute to bruxism relief.

e. Medication Adjustment: 

If bruxism is associated with specific diabetes medications, consulting with a healthcare provider about adjusting the dosage or switching to an alternative medication may be beneficial.

Asian woman sleeping on the bed and teeth,Female bruxism

Dental Care and Diabetes Management

Proper dental care is crucial for individuals with diabetes, as it can significantly impact their overall health, including the management of bruxism. Here are some essential tips for maintaining good oral health while managing diabetes:

a. Regular Dental Check-ups: 

Schedule regular dental check-ups and cleanings to monitor oral health and detect any issues early.

b. Blood Sugar Control: 

Properly manage blood sugar levels through a combination of medication, diet, exercise, and regular monitoring.

c. Oral Hygiene Routine: 

Maintain a consistent oral hygiene routine, including brushing twice a day with fluoride toothpaste and flossing at least once daily.

d. Diabetes-Friendly Diet: 

Follow a well-balanced, diabetes-friendly diet that is low in added sugars and high in nutrients.

e. Diabetes Educator: 

Work with a diabetes educator or healthcare provider to understand and manage your diabetes effectively.

Collaboration between Dental and Medical Professionals

To ensure comprehensive care for individuals with diabetes and bruxism, collaboration between dental and medical professionals is vital. Dentists and healthcare providers should communicate and share relevant information to provide the best possible care for the patient.


The link between diabetes and bruxism highlights the importance of a holistic approach to healthcare. By understanding the connection between these two conditions and their impact on oral health, individuals can take proactive steps to manage both diabetes and bruxism effectively. Regular dental check-ups, stress reduction techniques, and wearing nightguards or splints are essential strategies for mitigating the adverse effects of bruxism on oral health. By working together, dental and medical professionals can provide comprehensive care for diabetes patients, ensuring that their oral health remains a priority in their overall well-being.

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