Periodontal Disease, Heart Disease and Stroke
Periodontal disease, heart disease and stroke may seem to be unlikely bedfellows, but researchers have found that gum disease sufferers are nearly twice as likely to also suffer from coronary heart disease. In addition, research studies have discovered that oral infection is indeed a risk factor for stroke. People diagnosed with acute cerebrovascular ischemia were more likely to also be experiencing some degree of periodontal disease.
Periodontal disease is a progressive condition in which the gingival tissue surrounding the teeth is infected by the colonization of bacteria. Bacteria found in plaque colonize first above, then below the g gumline causing the tissue to pull away from the teeth. If periodontal disease is left untreated, deep pockets form between the gums and the teeth and the tissue of the underlying jawbone is also destroyed. The destruction of bone tissue causes the teeth to shift, wobble or completely detach from the bone.
Coronary heart disease occurs when the walls of the coronary arteries become progressively thicker due to the buildup of fatty proteins. The heart then suffers from a lack of oxygen and must labor significantly harder to pump blood to the rest of the body. Coronary heart disease sufferers sometimes experience blood clots which obstruct normal blood flow and reduce the amount of vital nutrients and oxygen the heart needs to function properly. This phenomenon often leads to heart attacks.
Reasons for the Connection
There is little doubt that the presence of periodontal disease can exacerbate existing heart conditions. The periodontist and cardiologist generally work as a team in order to treat individuals experiencing both conditions.
There are several theories which may explain the link between heart disease, stroke and periodontal disease, which include the following:
- Oral bacteria affect the heart – There are many different strains of periodontal bacteria. Researchers assert that some of these strains of bacteria enter the bloodstream and attach to the fatty plaques in the heart blood vessels (coronary arteries). This attachment then contributes to clot formation causing grave danger to the individual.
- Inflammation – Periodontal disease causes severe inflammation in the gum tissue which elevates the white blood cell count and also the high sensitivity C-reactive protein levels. Research studies have shown that elevated levels of C-reactive proteins have been linked to heart disease.
- Infectious susceptibility – Individuals who experience particularly high levels of oral bacteria may have weaker immune systems and an inadequate host inflammatory response. These factors may induce specific vascular effects which have previously been shown to contribute in the onset of certain forms of heart disease.
Diagnosis and Treatment
Since periodontal disease appears to be a risk factor for both heart attack and stroke, it is extremely important to seek immediate treatment. Initially, the periodontist will conduct thorough examinations to assess the exact condition of the teeth, gums and jawbone. X-rays can be helpful in determining whether bone loss is prevalent in the upper and lower jaw.
The dentist in Waterloo, ON is able to conduct deep cleaning treatments such as scaling and root planing to remove hardened calculus (tartar) deposits from the gum pockets. An antibiotic may be prescribed to ensure that the bacterium is completely destroyed and the periodontal infection does not spread. In most cases, periodontal disease can be prevented with regular cleanings and proper home care.
If you have questions or concerns about periodontal disease and its relation to heart disease and stroke, please ask your dentist.
Why Gum Health Matters for Cardiovascular Health
Research over the past two decades has consistently shown an association between periodontal disease and cardiovascular disease, including coronary artery disease, heart attack, and stroke. People with chronic periodontal disease have a measurably higher risk of these conditions than people with healthy gums, even after accounting for other shared risk factors like smoking, diabetes, and obesity.
The mechanism is thought to be inflammation. Periodontal disease is a chronic low-grade infection that produces inflammatory chemicals which enter the bloodstream and circulate throughout the body. This systemic inflammation appears to contribute to the formation and destabilization of arterial plaque, which is the underlying problem in most cardiovascular disease. Oral bacteria themselves have been found in arterial plaque samples, suggesting they may travel through the bloodstream and contribute directly.
This does not mean having gum disease will give you a heart attack. The association is real but modest, and many factors contribute to cardiovascular disease. What it means is that taking care of your gums is one of several modifiable steps that may reduce overall cardiovascular risk, alongside not smoking, controlling blood pressure, managing diabetes, exercising regularly, and eating well.
Signs and Risk Factors Worth Discussing With Both Dentist and Physician
If you have cardiovascular disease or are at higher cardiovascular risk, certain dental signs warrant attention:
- Bleeding gums on brushing or flossing
- Persistent bad breath despite good home care
- Gum recession exposing tooth roots
- Increased tooth mobility
- Pus discharge from gum pockets
- History of frequent gum infections
- Smoking history (raises both periodontal and cardiovascular risk)
- Diabetes (raises both periodontal and cardiovascular risk)
- Family history of early cardiovascular disease
- Existing diagnosis of atherosclerosis, heart attack, or stroke
Conversely, if your physician has told you about cardiovascular risk factors, mention this at your dental visit. The coordinated picture helps both your dentist and your physician.
What Treatment of Gum Disease May Do for Heart Health
Several studies have shown that treating chronic periodontal disease — primarily through deep cleaning (scaling and root planing) and improved home care — reduces markers of systemic inflammation. Whether this directly translates to lower rates of heart attacks and strokes is still being studied, but the inflammation reduction itself is a positive sign for cardiovascular health.
Patients with existing cardiovascular disease who improve their oral health often report fewer episodes of gum-related symptoms and improved sense of general well-being. This is not a substitute for cardiovascular treatment but is one of many supporting steps you can take. Your dentist and cardiologist generally encourage this coordination.
Practical steps: maintain twice-yearly dental cleanings (or every three to four months if you have active gum disease), brush twice a day for two minutes with fluoride toothpaste, floss daily, do not smoke, and tell each provider about the care you are receiving from the other. If you take blood thinners for cardiovascular reasons, mention this before any dental procedure that might cause bleeding.
What This Means for Your Care at Trillium
Trillium routinely asks about cardiovascular history during health updates and adjusts dental treatment plans based on what you tell us. Most routine dental work is safe for patients with cardiovascular disease; certain procedures (extractions, oral surgery) may require coordination with your cardiologist regarding blood thinners. Periodontal evaluation is included in every regular visit at no additional cost.
Most private dental insurance plans cover periodontal care. CDCP includes periodontal services. Pre-procedure consultations or specialist referrals related to medical complexity are billed per the Ontario Dental Association Suggested Fee Guide.
Frequently Asked Questions
Will treating my gums prevent a heart attack?
Treating gum disease reduces systemic inflammation, which may modestly reduce cardiovascular risk. The most powerful cardiovascular protections remain the standard ones — not smoking, controlling blood pressure, managing diabetes, eating well, exercising. Good oral health is one supporting piece, not a replacement for cardiovascular care.
Should I stop my blood thinner before dental work?
Do not stop any medication without talking to the prescribing physician first. Most routine dental work (cleanings, fillings) can be done safely while continuing blood thinners. Extractions or other surgical procedures may require coordination, but stopping medication abruptly carries its own risks.
I have a heart valve issue. Do I need antibiotics before dental visits?
Some patients with specific heart conditions need preventive antibiotics before certain dental procedures. The current guidelines have narrowed who needs this. Tell us your specific cardiovascular diagnosis and we will coordinate with your cardiologist about whether premedication is needed.
Can mouthwash protect my heart?
Probably not directly. Mouthwash helps with oral hygiene but does not provide cardiovascular protection. The strongest oral care you can do is consistent brushing, flossing, and professional cleanings. Antimicrobial mouthwashes are used for specific situations (gum disease, post-surgical healing), not as general cardiovascular prevention.
I have a pacemaker. Is dental work safe?
Yes, in general. Most modern dental equipment does not interfere with pacemakers, but tell your dental team about your pacemaker before the visit. Certain ultrasonic dental tools may be used carefully or substituted for hand instruments depending on your specific device.
My gums bleed but I have no heart problems. Should I be worried?
Bleeding gums indicate active gum inflammation. Whether or not you have cardiovascular concerns, treating the gum inflammation is worthwhile. It improves oral health directly and reduces one source of systemic inflammation. Mention it at your next cleaning visit and we can address it.