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Clinical Commentary

Dry Mouth Is More Than a Nuisance
Saliva plays a critical role beyond simply providing oral comfort. Understanding its protective functions can fundamentally alter one’s perspective on…
 • John W. Johnson, DDS
The Child Who Sleeps With Their Mouth Open
Why mouth breathing is not always a harmless habit, and what parents should understand about airway, sleep, and development
 • John W. Johnson, DDS
The Cost of Convenience
What modern food changed about chewing, appetite, and oral health
 • John W. Johnson, DDS
Before the Crooked Teeth
What breastfeeding, weaning, tongue posture, and baby-tooth spacing can reveal about development
 • John W. Johnson, DDS
How Did Our Airways Become So Small?
The overlooked story of jaw development, crowded teeth, and modern life
 • John W. Johnson, DDS
What Every Parent Should Know About Airway Health
The Early Signs of Sleep-Disordered Breathing Are Often Hiding in Plain Sight
 • John W. Johnson, DDS
The Future of Sleep Diagnostics Is Already Here
How Artificial Intelligence, Wearable Technology, and Airway Imaging Are Transforming Sleep Medicine
 • John W. Johnson, DDS
Sleep Apnea Is Not Just About Snoring
The Broader Impacts of Airway Health Beyond Sleep
 • John W. Johnson, DDS
Not All Cavities Begin With Sugar
Processed starches, frequent snacking, and dry mouth cause more oral health problems than most assume.
 • John W. Johnson, DDS
Why Healthy People Still Feel Off
You can do everything “right”—eat clean, exercise, and focus on health—yet still miss what’s quietly fueling inflammation and fatigue.
 • John W. Johnson, DDS
The Tooth That Wouldn’t Heal
Exploring the Biological Realities of Root Canal–Treated Teeth and Their Place in Whole-Body Health
 • John W. Johnson, DDS
Why Dentistry Is Treating the Wrong Problem
The difference between straight teeth and a healthy system
 • John W. Johnson, DDS
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