EPISODE · May 11, 2026 · 33 MIN
Ep. 768 - Inside the Lines: What Dentists Need to Know About Waterline Safety
from The Dr. Phil Klein Dental Podcast · host Viva Learning LLC
How confident are you that the water flowing from your dental units is truly safe for every patient? While most practices trust their municipal water supply, the real contamination risk lies within those narrow dental unit water lines where biofilm thrives and dangerous bacteria can multiply undetected.Michelle Strange, MSDH, RDH, brings over two decades of dental expertise to this critical discussion. Beginning her career as a dental assistant before earning her dental hygiene degree, she also holds a bachelor's degree in health science from the Medical University of South Carolina and a master's in dental hygiene education from the University of Bridgeport. Currently serving as cofounder of Level Up Infection Prevention, host of A Tale of Two Hygienists Podcast, client success manager for TeleDent by MouthWatch, and owner of MichelleStrangeRDH, she continues practicing as a dental hygienist while maintaining her Certificate in Dental Infection Prevention and Control.This episode tackles one of dentistry's most overlooked safety protocols through Michelle's proven "test, shock, and maintain" approach to waterline management. She explains why even compliant practices can experience sudden failures, how biofilm development mirrors periodontal disease progression, and why dental unit water lines represent the "canary in the coal mine" for overall infection control compliance. The discussion covers practical implementation strategies that busy practices can actually sustain.Episode Highlights:Testing protocol requires a minimum of three monthly passing tests before transitioning to quarterly monitoring, with practices choosing between 15-minute in-office results using rapid tests or comprehensive mail-in laboratory analysis that captures slow-growing organisms over seven days of incubation.Shock treatment involves running concentrated disinfectant solutions through all water-receiving lines until visible throughout the system, followed by overnight contact time and thorough flushing with clear water before patient use resumes the following day.Maintenance systems include either daily tablet placement in water bottles or cartridge straw systems that provide continuous silver ion treatment, with cartridge systems offering superior compliance despite higher costs compared to manual tablet protocols.Water bottle systems are essential for proper treatment delivery since municipal water connections cannot accommodate shock protocols or consistent chemical treatment, requiring retrofitting in practices currently using direct city water feeds.Documentation becomes legally critical during health department investigations or outbreak scenarios, requiring written standard operating procedures and detailed records that demonstrate consistent adherence to established waterline management protocols.Perfect for: General dentists, dental hygienists, practice managers, and infection control coordinators seeking evidence-based waterline management protocols that protect patients while maintaining regulatory compliance.Don't wait for a contamination event to discover your waterline vulnerabilities – implement these proven protocols now.
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What this episode covers
What if the water flowing through your dental unit isn’t as clean as you think—and how would you even know? We trust that if incoming water meets municipal standards, we’re safe. But inside those narrow dental unit waterlines, biofilm can build and bacteria can rise unnoticed. So what does that actually mean for your patients? Are we talking about minor contamination—or something more serious? Could poorly maintained waterlines contribute to infections like infective endocarditis in at-risk patients? What about respiratory illnesses like Legionnaires’ disease, or exposure to organisms like Mycobacterium abscessus linked to dental outbreaks? These aren’t theoretical—they’re real risks. In this episode, we tackle a critical question: do you have a reliable waterline protocol? We’ll cover why testing is the first step, how shock treatments work for both remediation and prevention, and how to build a simple workflow that keeps your water safe and documentation easy. Because every patient is exposed to that water—are you confident it meets the highest standard? I’m joined by Michelle Strange, a dental hygienist, educator, and founder of MichelleStrangeRDH and Level Up Infection Prevention, helping practices implement practical, real-world infection control strategies.
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Ep. 768 - Inside the Lines: What Dentists Need to Know About Waterline Safety
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