Why humans lost regenerative teeth, and what we can learn from animals that didn’t Introduction: The Envy of Sharks As a practicing dentist, I often encounter a recurring daydream—not the clichéd one of falling into an abyss shaped like a…
This post introduces a simple, economical, and surprisingly effective protocol for preparing TSS competent cells—chemically competent E. coli prepared using the TSS (Transformation and Storage Solution) method. Originally described by Chung et al. (1989), the TSS competent cell preparation method…
In orthodontic treatment, few principles are as foundational—and as often overlooked—as anchorage. Without sufficient anchorage, retraction forces may move the wrong teeth, disrupt occlusion, or lead to mid-treatment failure. Simply put, anchorage systems determine whether your space closure plan will…
In fixed appliance orthodontics, even the most meticulously planned treatment can go off track if mechanical side effects aren’t properly managed. One of the most notorious and subtle complications during space closure is the bowing effect. This biomechanical phenomenon can…
🧬 Evolution Behind Your Smile – Part 2 of 20 What Does the Red Queen Have to Do with Your Mouth? There’s a curious principle in evolutionary biology that explains why bacteria in your mouth never seem to go away—no…
This post is the beginning of a twenty-part series titled “Evolution Behind Your Smile.” Across these essays, I explore how our teeth, jaws, and oral biology tell the deeper story of human evolution—one fossil, one molar at a time. As…
When retraction fails in orthodontic treatment, the reason is rarely due to a single issue. More often, it’s a result of multiple mechanical, biological, or technical problems interacting in subtle ways. For clinicians and students alike, understanding why retraction fails…
In the world of orthodontic retraction mechanics, there’s no one-size-fits-all method.Two of the most widely used techniques—loop mechanics and sliding mechanics—approach the same goal from very different biomechanical philosophies. Understanding the advantages, limitations, and indications of each approach is key…
Orthodontic retraction is often misunderstood as simply “pulling the front teeth backward.” In reality, it is one of the most delicate and technique-sensitive phases in fixed appliance therapy. Before initiating retraction, the clinician must ensure proper alignment, leveling, and torque…
“When immunity is silenced, infection speaks louder — dentistry must listen.” 🔍 Introduction — Why Immunosuppressants Matter in Dentistry Immunosuppressive therapy is increasingly common — from organ transplants and autoimmune diseases to cancer treatments. For dental professionals, this means more…
