Top 5 Probiotic Good Bacteria for Mouth

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Maintaining good oral health is crucial for our overall well-being, and having a diverse oral microbiome containing both good and bad bacteria plays a significant role in achieving it. Let’s explore the benefits of good bacteria for mouth, the top five strains, and the role of Oral Probiotics in reintroducing them.

Good vs. Bad Oral Bacteria 

Imagine you’re hosting a party and you have two types of guests: good guests and bad guests. The good guests are polite, respectful, and make sure to clean up after themselves. They add to the overall enjoyment of the party and contribute to a positive atmosphere. On the other hand, the bad guests are rude, messy, and disrespectful of others’ space. They cause chaos and can make the party a stressful and unpleasant experience for everyone involved.

good bacteria for mouth

In a similar way, the mouth is host to both good and bad bacteria. Good bacteria for the mouth, like the good guests at your party, play a crucial role in maintaining a healthy environment. They prevent bad bacteria from taking over, help to balance pH levels, and contribute to healthy teeth and gums. Bad bacteria, like the bad guests at your party, can cause a lot of problems. They form dental plaque, produce harmful acid, and can lead to tooth decay and gum disease.

Just like at a party, it’s important to have a good balance of guests. In the same way, maintaining a balance of good and bad bacteria in the mouth is key to maintaining good oral health.

Some common bad bacteria that can harm oral health are:

  • Streptococcus mutans: This is the main bacteria responsible for tooth decay.
  • Porphyromonas gingivalis: This bacteria can lead to gum disease and tooth loss.
  • Fusobacterium nucleatum: This contributes to the formation of dental plaque and can cause bad breath.
  • Prevotella intermedia; Aggregatibacter actinomycetemcomitans; Tannerella forsythia, etc

How Good Bacteria benefit your Oral Health? 

good bacteria for mouth

To provide additional information on how good bacteria benefit oral health, let’s explore this topic in greater depth. Firstly, good bacteria for the mouth prevent the overgrowth of bad bacteria by competing for space and resources. This helps to maintain a balanced ecosystem in the mouth, which is important for preventing dental diseases such as cavities and gum disease.


Another way in which good bacteria benefit oral health is by helping to maintain a balanced pH in the mouth. When the pH level in the mouth becomes too acidic, it can lead to the erosion of tooth enamel and the development of cavities. Good bacteria can help to neutralize acid in the mouth and prevent this from happening.

Additionally, good bacteria for the mouth can produce essential enzymes and amino acids that are important for oral health. For example, some good bacteria produce enzymes that help to break down food particles and promote digestion. Other bacteria produce amino acids that are necessary for the growth and repair of oral tissues.

Some good bacteria even produce antimicrobial agents that can kill or inhibit the growth of harmful bacteria. This helps to prevent the development of dental diseases and promote good oral health.

Finally, having a diverse population of good bacteria in the mouth can help to boost the immune system and reduce the risk of oral diseases. A healthy oral microbiome is essential for maintaining overall health and well-being.

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Top 5 good bacteria for mouth

There are several types of probiotic species that are beneficial for oral health. Five of them are:

  • Streptococcus salivarius K12: This type of bacteria suppresses harmful oral pathogens such as Streptococcus pyogenes and Streptococcus pneumoniae, which can cause infections and autoimmune disorders. Additionally, it provides strong immune support, reduces symptoms of oral and respiratory viral infections, and promotes ear, nose, and throat health.
  • Streptococcus salivarius M18: It produces bacteriocins and enzymes that help remove plaque and metabolize lactic acid. This type of bacteria also suppresses the main oral pathogens that cause tooth decay, plaque, and periodontal disease. Furthermore, it reduces pro-inflammatory immune responses.
  • Limosilactobacillus reuteri: This probiotic species can reduce pro-inflammatory immune responses, Candida, and periodontal pocket depth.
  • Ligilactobacillus salivarius: It reduces the population of pathogenic bacteria and supports tooth and gum health by improving resistance to cavities. It also produces sufficient hydrogen peroxide to kill certain bacterial species and improves bad breath.
  • Lacticaseibacillus paracasei: This type of bacteria binds to oral pathogens that cause tooth decay and protects against Candida

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Oral Probiotic Supplements: A good way to reintroduce good bacteria for mouth

Just as a garden needs good soil, sunlight, and water to flourish, our oral microbiome also requires a balanced environment for good bacteria for the mouth to thrive. However, our unhealthy habits like smoking, poor diet, and lack of oral hygiene can act like weeds in the garden, causing the bad bacteria to overgrow and choke out the good bacteria for mouth. This imbalance can lead to various oral health problems, such as tooth decay, gum disease, and bad breath. In such cases, Oral Probiotics can act like a gardener’s tool, reintroducing good bacteria for mouth and restoring the balance in the oral microbiome, similar to how adding beneficial microbes can help restore the health of a garden.

Oral probiotic supplements come in various forms such as lozenges, mouth rinses, and chewable tablets. These forms allow the beneficial bacterial strains, including good bacteria for mouth, to be delivered directly into the mouth, where they can start colonizing the oral cavity and forming biofilms. Biofilms are communities of microorganisms that adhere to surfaces and form a protective layer against harmful pathogens. As the good bacteria for mouth colonize the mouth, they start competing with and eliminating the bad bacteria that cause dental diseases.

This process helps to restore balance to the oral microbiome and improve overall oral health. By using Oral Probiotics, individuals can introduce a diverse range of beneficial bacterial strains, including good bacteria for mouth, into their mouths, helping to crowd out and eliminate the harmful bacteria that thrive in an unhealthy oral environment.

Maintain your diverse oral microbiome

Taking oral probiotic supplements can be a great way to reintroduce beneficial bacteria, including good oral bacteria, into your oral microbiome, but it’s important to keep in mind that these supplements need to be constantly replenished to maintain their efficacy. This is where prebiotics come in. Prebiotics are non-digestible fibers that feed the friendly oral bacteria colonies, helping them to flourish and maintain their presence in the mouth. Some great sources of prebiotics include leafy greens, garlic, onions, greenish bananas, asparagus, apples, flaxseed, and cocoa. Incorporating more of these foods into your diet can help support the growth and maintenance of the probiotic bacteria and good oral bacteria in your mouth.

In addition to oral probiotic supplements and prebiotic-rich foods, it’s also beneficial to add more probiotic foods to your diet. These foods contain live cultures of beneficial bacteria and can further enhance the benefits of oral probiotic supplements. Examples of probiotic foods include yogurt, miso, natto, kimchi, and sauerkraut.

good bacteria for mouth

Remember, taking oral probiotic supplements alone is not enough to maintain good oral health. It should be combined with proper oral hygiene practices such as brushing and flossing regularly and regular dental check-ups. Look for products with a high strain count or colony forming units (CFUs) at levels of 3 billion or more to ensure that you are getting the most benefit from your oral probiotic supplementation. This will help support your mouth’s very own ‘immune system’ and maintain a healthy balance of good oral bacteria in your oral microbiome.

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