Phase Contrast Microscopy Seeing and Interpreting the Living Oral Environment

This one-hour webinar presented by Fran Horning, BRDH, HIAOMT introduces dental professionals to the fundamentals of phase contrast microscopy and its application in evaluating oral samples. Participants will learn how to properly view live biofilm, recognize key microbial and cellular patterns, and begin distinguishing between health-associated and dysbiotic presentations. The focus is on practical, real-world interpretation so clinicians can confidently understand what they are seeing chairside and communicate findings effectively to patients.

Learning Objectives:

• Understand the basic principles of phase contrast microscopy and how it differs from traditional light microscopy in visualizing live oral specimens.
• Identify common structures and organisms observed in oral samples, including bacteria, motile forms, host cells, and debris.
• Develop a foundational framework for interpreting slide findings and correlating visual patterns with clinical presentations.