Welcome back to Save Your Money, Save Your Teeth, the podcast where curiosity meets dentistry straight from the experts.

In this episode, Dr Clifford Yudelman of OptiSmile unpacks the fascinating world of the oral microbiome - the 700+ species of bacteria, fungi, and viruses living in your mouth.

Far from being just “germs,” this microscopic ecosystem protects your teeth, gums, and even plays a surprising role in whole-body health, from heart disease to Alzheimer’s.

Summary 

[1:22 ] What exactly is the oral microbiome and why does it matter?

It’s a community of over 700 species of bacteria, fungi, and viruses in the mouth. In balance, it protects against disease, but imbalance (dysbiosis) can trigger cavities, gum disease, and even systemic illnesses like cardiovascular disease and Alzheimer’s.

[2:52 ] How does a healthy oral microbiome protect against tooth decay and gum disease?

Good bacteria compete with harmful ones, neutralise acids, and support the immune system. Together with saliva, they keep teeth and gums in balance and resistant to disease.

[4:24 ] Which factors disrupt this balance?

Frequent sugar intake, poor oral hygiene, antibiotics, smoking, and vaping all shift the balance toward harmful bacteria. Stagnant plaque creates an environment where disease-causing microbes thrive.

[6:28 ] What are the oral-systemic connections?

Gum disease bacteria can enter the bloodstream, contributing to heart attacks, strokes, arthritis, diabetes, and even Alzheimer’s. Oral bacteria can also disrupt gut health.

[8:55 ] Can probiotics or prebiotics help oral health?

Yes. Some probiotics reduce gum inflammation and cavity-causing bacteria, while prebiotics like arginine feed good bacteria. Research is ongoing, and results are promising.

[10:58 ] How do oral care products affect the microbiome?

Fluoride toothpaste helps protect against harmful bacteria. Strong antimicrobial mouthwashes should be used sparingly, as they can also wipe out good bacteria. Alcohol-free, balanced formulas are preferable.

[12:40 ] What clinical tests assess microbiome health?

DNA-based saliva tests and cultures exist, but they’re costly and not widely used in everyday dentistry. They’re more for specialised or complex gum disease cases.

[14:38 ] How does diet support a healthy oral microbiome?

Fibre-rich fruits and vegetables, yoghurt, fermented foods, and green tea promote balance. Limiting sugar and frequent snacking starves cavity-causing bacteria.

[16:07 ] Which new therapies are being researched?

Future options may include sprays, probiotic varnishes, and smart mouthwashes that selectively target bad bacteria without harming good ones.

[17:19 ] What are the simplest daily habits to nurture oral microbiome health?

Brush twice daily with fluoride toothpaste, floss, chew xylitol gum, and avoid overspending on unproven supplements.

The oral microbiome is more than just an academic topic - it’s the hidden link between your daily dental routine and your long-term overall health. By understanding how to nurture it, you can protect yourself not just from cavities and gum disease, but also from broader systemic risks.

Thanks for joining Dr Clifford Yudelman and Eon Engelbrecht for another evidence-based conversation.

Don’t forget to subscribe to Save Your Money, Save Your Teeth on Spotify, Apple Podcasts, and YouTube for more expert insights into keeping both your smile and your health in balance.

Further Resources from OptiSmile 

1. Why Diet Matters for Your Teeth — Explores how what you eat not only impacts your oral health but can influence systemic conditions as well. 
2. Tooth Sensitivity Explained — A deep dive into enamel erosion, pain triggers, and protective tips. 
3. Pregnancy & Oral Health — Dr Yudelman talks through dental care tips, myths, and diet considerations during pregnancy. 
4. Why Regular Dental Check-Ups Save You Money — The ultimate guide to dental check-ups, including cost-saving benefits and what to expect during a visit. 
5. Teeth Whitening at OptiSmile — Practical advice for professional whitening care, sensitivity management, and aftercare best practices.

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Disclaimer: The content provided in this podcast, "Save Your Money Save Your Teeth" on Medical Mondays, is for informational and educational purposes only. It is not intended to serve as dental or medical advice. The insights and opinions expressed by Dr. Clifford Yudelman and any guests are designed to foster a better understanding of dental health, preventive measures, and general well-being, but should not be interpreted as professional dental or medical recommendations. Dr. Clifford Yudelman does not diagnose, treat, or offer prevention strategies for any health conditions directly through this podcast. This platform is not a substitute for the personalized care and advice provided by a licensed dental or healthcare professional. We strongly encourage our listeners to consult with their own dental care providers to address individual dental health needs and concerns. The information shared here aims to empower listeners with knowledge about dental health but must not be used as a basis for making health-related decisions without professional guidance. Your dental care provider is the best source of advice about your dental and overall health. Please always seek the advice of your dentist or other qualified health professionals regarding any questions or concerns about your dental health.