find me statistics to support that poor oral health can lead to various systemic diseasesand provide me the source of the statistics

Here are some statistics that support the link between poor oral health and systemic diseases:

1. According to the American Dental Association (ADA), periodontal (gum) disease is associated with an increased risk of developing several systemic diseases, including cardiovascular disease, diabetes, and respiratory infections. Source: American Dental Association (ADA) - "Oral Health Topics: Gum Disease and Systemic Conditions" (https://www.ada.org/en/member-center/oral-health-topics/gum-disease-and-systemic-conditions)

2. A study published in the Journal of Periodontology found that individuals with periodontal disease were nearly twice as likely to have coronary artery disease compared to those without gum disease. Source: Journal of Periodontology - "Periodontal Disease and Coronary Heart Disease Incidence: A Systematic Review and Meta-analysis" (https://pubmed.ncbi.nlm.nih.gov/26114943/)

3. The Centers for Disease Control and Prevention (CDC) states that oral infections, such as periodontal disease, can negatively impact glycemic control in individuals with diabetes, leading to increased complications. Source: Centers for Disease Control and Prevention (CDC) - "Oral Health and Diabetes" (https://www.cdc.gov/oralhealth/conditions/diabetes.html)

4. A systematic review published in the Journal of Clinical Periodontology found a significant association between periodontal disease and respiratory diseases, including pneumonia, chronic obstructive pulmonary disease (COPD), and asthma. Source: Journal of Clinical Periodontology - "Periodontal Disease and Respiratory Disease: A Systematic Review" (https://pubmed.ncbi.nlm.nih.gov/24164603/)

Please note that while these statistics provide evidence of an association between poor oral health and systemic diseases, they do not establish a direct cause-and-effect relationship. It is always recommended to consult with a healthcare professional or dentist for personalized advice and information