The oral-systemic link refers to the connection between oral health and overall systemic health. It suggests that the health of your mouth and teeth can have an impact on various aspects of your overall well-being, including your cardiovascular health, immune system, and certain systemic diseases.

Research has shown that there are several ways in which oral health can influence systemic health. For example:

1. Cardiovascular health: Poor oral health, particularly gum disease (periodontal disease), has been associated with an increased risk of developing heart disease, strokes, and other cardiovascular conditions. The exact mechanisms are not fully understood, but it is believed that the inflammation and bacteria associated with gum disease can enter the bloodstream and contribute to the development or worsening of cardiovascular problems.
2. Diabetes: People with diabetes are more prone to gum disease, and gum disease can make it more difficult to control blood sugar levels. This bidirectional relationship between oral health and diabetes can have a negative impact on overall health.
3. Respiratory health: Oral infections, such as gum disease and tooth decay, can lead to respiratory problems. The inhalation of bacteria from the mouth into the lungs can contribute to respiratory infections, pneumonia, and other respiratory conditions.
4. Pregnancy complications: Poor oral health has been linked to an increased risk of premature birth, low birth weight, and gestational diabetes. Hormonal changes during pregnancy can make gums more susceptible to inflammation and infection, emphasizing the importance of maintaining good oral hygiene during this time.
5. Immune system: Oral infections can strain the immune system and make it less effective in fighting off other infections throughout the body.

While the oral-systemic link is still an area of ongoing research, it highlights the importance of maintaining good oral hygiene and regularly visiting your dentist. Brushing your teeth at least twice a day, flossing (and/or cleaning between your teeth) daily, eating a balanced diet, and scheduling regular dental check-ups can contribute to both oral and overall systemic health.

In addition, a recent study discovered a connection between tooth loss, gum disease, and a reduction in the size of a specific area of the brain that is involved in memory, particularly in relation to Alzheimer's disease. On top of that, this study found that losing a tooth was associated with brain shrinkage equivalent to nearly one additional year of brain aging. Severe gum disease was linked to 1.3 years of brain aging. These findings suggest that taking care of our teeth and gums is important for maintaining brain health.