How Many Bacteria Live in the Human Mouth?

At first glance, it can be easy to believe you are a single living being. In reality, though, your body hosts an incredible number of microorganisms, with bacteria making up a significant portion of them. While that fact might seem a bit unsettling, it is actually remarkable! One place where many bacteria live is your mouth. How many might be there, and what roles do they play? This blog post explains some fascinating information.

How Many Bacteria?

Experts estimate that the mouth of an average human contains around 700 different species of bacteria. This number translates into billions of individual bacteria living on your teeth, gums, tongue, and other surfaces inside your mouth. The majority of bacteria in your mouth are harmless, and many even serve helpful purposes for your well-being. Altogether, all the microorganisms in your mouth constitute your oral microbiome.

When balanced, this community of bacteria can help you achieve good oral health, lower your risk for disease, and support your body’s ability to control inflammation. When it becomes unbalanced, however, problems like cavities, gum disease, and systemic illness can result.

Influences on Your Oral Microbiome

Many factors affect the composition and health of your oral microbiome. Some of these influences began before you were born. For example, if your mother developed gum disease during pregnancy, you may have an increased number of harmful bacteria in your own mouth, raising your risk for dental problems in the future.

Other key influences on your oral microbiome include:

• Oral hygiene habits
• Dietary choices
• Your overall health status
• Genetic factors

Steps to Support a Healthy Oral Microbiome

You can take several steps to promote a healthy balance of bacteria in your mouth. Consider the following practical strategies:

• Practice thorough oral hygiene: Brush and floss your teeth on a regular basis to limit the growth of harmful bacteria. Keep in mind that while antimicrobial mouth rinses can be helpful in some situations, you should avoid overusing them because they can eliminate both bad and good bacteria.
• Choose your foods wisely: Foods high in sugar and starch provide fuel for harmful bacteria, which can then produce plaque and contribute to tooth decay or gum disease. Limiting sugary snacks and drinks helps maintain a healthier oral environment.
• Add beneficial foods to your diet: Probiotic-rich and prebiotic foods, such as fruits, vegetables, and fermented products, may encourage the growth of helpful bacteria.
• Visit your dentist regularly: Professional cleanings can help control the population of harmful bacteria. Your dental team can also offer personalized advice for your oral health.

A Remarkable Community in Your Mouth

The bacteria present in your mouth form a vibrant and complex community. By taking appropriate steps to support a healthy oral microbiome, you can protect your teeth, gums, and overall health.

Meet the Practice

In our woman-owned San Antonio dental practice, Dr. Bianca Sanchez takes the lead in creating a positive care experience for each patient. We offer oral hygiene services, personalized coaching on how to care for your mouth, and more. If you have questions about how you can optimize your oral health, reach out to our office at 210-690-2727.