Filed under: Clinical observations · Biofilm architecture · PNLG · May 2026 The standard textbook of periodontal microbiology shows you bacteria as a list of species. Red complex, orange complex, green complex. Names, percentages, shaded boxes. These photographs show you bacteria as architecture. The difference is the difference between a phone book and a city. […]
Quasi Organisms in Mouth Read More »
A patient does not walk in as a diagnosis — they walk in as a state. The clinician’s job is to infer the hidden process that generated it, then choose the smallest vocabulary that still captures the dangerous variation.
Clinical Vocabulary: Why Diagnosis Is a Compression Problem Read More »
My Current Home Care Routine — Dr. Joshua Grenier Clinical Perspective My Current Home Care Routine What a dentist actually does at the sink every morning and night — and the clinical reasoning behind each step. Patients ask me all the time: “What do you do at home?” Fair question. Here is the honest, detailed
The Chemistry That Doesn’t Care Everything Is Electrons Falling Downhill Every process that transforms food, fuels the body, or destroys metal is the same reaction running at different speeds. Combustion, aerobic respiration, fermentation, the Maillard reaction, and corrosion all represent electrons moving from high-energy bonds on reduced carbon (or metal) toward their thermodynamically stable resting
The Chemistry That Doesn’t Care Read More »
Your mouth harbors hundreds of bacterial species, most of which coexist peacefully. This visualization models that ecosystem as a stability landscape — abundant, balanced organisms create a “commensal core” that anchors the community. Bacteria sitting deep in the center are ubiquitous and stable. Those on the edges are rare and disease-skewed — they’ve “escaped” the
What Type of Bacteria Do You Have? Read More »
Dental implants remain the gold standard for replacing missing teeth. A titanium post anchored in the jawbone, topped with a custom crown — the concept hasn’t changed. But what has changed, dramatically, is how we plan them, place them, and perhaps most importantly, how we understand the biological environment they’re placed into. For decades, implant
How Digital Dentistry Transforms the Future of Tooth Replacement Read More »
Sugar and Soda: The Modern Cigarette? Part 2: Oral Health and the Damage to Teeth Leave a Comment / By Dr Joshua Grenier / September 23, 2025 In Part 1 of this series, we talked about sugar and soda as drivers of modern chronic disease. But the mouth is where the damage often shows up
Basics of Oral Hygiene Read More »
You’ve heard the comparison before: sugar is the new tobacco. Addictive, aggressively marketed, hidden in everything, and quietly destroying the health of millions. There’s truth in that parallel. But the tobacco analogy actually undersells the problem — because sugar doesn’t just damage one organ system. It destabilizes the oldest and most complex living ecosystem your
Sugar and Soda: The New Cigarette? Read More »
The Science of Toothpaste & Oral Ecology OralScience Biofilm Dynamics Ingredients Decoder Efficacy Data More Than Just Minty Fresh The Biochemistry of Toothpaste Understanding the war between commensal bacteria and pathogenic biofilms. Explore how ingredients like Arginine, Hydroxyapatite, and Fluoride manipulate the oral ecosystem. The Battlefield: Plaque & Quorum Sensing The mouth is an ecosystem.
The Biochemistry of Toothpaste Read More »
