Presented by: Lorraine Gambacourt, RDH

Prebiotics, Probiotics, Postbiotics, Oh My!

Online Date:

Wednesday, February 24th, 2027 - 7:00 PM - 8:00 PM EST

Course Description:

This one-hour course explores the evolving science of prebiotics, probiotics, and postbiotics and their roles in supporting oral, gut, and systemic health.

Participants will gain a clear, practical understanding of the differences among prebiotics, probiotics, and postbiotics, beginning with the oral and gut microbiomes and the impact of symbiosis and dysbiosis.

The course explores how prebiotic fibers, plant foods and polyphenols support beneficial microorganisms, along with the practical and emerging applications of probiotics and postbiotics.

Learning Objectives:

1. Describe key characteristics and functions of the oral and gut microbiomes in symbiosis and dysbiosis.

2. Differentiate between prebiotics, probiotics, and postbiotics.

3. Explain how prebiotic fibres and plant-based foods influence the gut microbiome.

4. Recognize the role of polyphenol-rich foods in supporting oral, gut, and systemic health.

5. Discuss practical and emerging applications of probiotics and postbiotics in supporting oral, gut, and systemic health.

Can’t attend live?

We encourage you to join us live whenever possible so you can participate in the discussion, ask questions and enjoy the full learning experience.

All sessions are recorded and automatically uploaded to your rdhu Members Portal within 2–3 days — no need to request access. You'll receive immediate access to the portal, post-test quiz, and certificate right after the course. Recordings remain available for 30 days.

Meet Your Presenter

Lorraine obtained her Dental Hygiene Diploma from George Brown College in 1985.

She is passionate about empowering clients to obtain the best oral health as well as educating them about the Oral Systemic Connection. She enjoys inspiring others and sharing her knowledge with her colleagues through writing, blogging, and presenting on a variety of topics.

Her article, “A Healthy Mouth—A Healthier Heart” was published in Oral Hygiene in February 2018. Her passion for this topic led to organizing an event In June 2019, bringing the renowned Drs. Bradley Bale,MD and Amy Doneen DNA, ARNP to Canada for the first time to address a group of 200 Dental and Medical Professionals of “The Critical Role of Oral Health in Heart Attack and Stroke Prevention.”

Lorraine has presented several webinars for rdhu Inc., a platform for RDH education, and is one of rdhu's Ontario Soft-Tissue Diode Laser Trainers. She has been actively implementing protocols and strategies that promote oral health, reduce oral-systemic risk, and inspire medical/dental collaboration.

Given Lorraine’s passion for sharing about the benefits of Oral Probiotics, she has had two articles published and was asked to be a contributing chapter author on this topic for the book “Get Your Spit Together”, launched January 2022.