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Dr. John Gontarz, PhD

Dr. John Gontarz, who holds a PhD in Organic Chemistry and has 30 years of experience developing ingredients for cosmetic and personal care products, turned his expertise towards oral care after retiring. Motivated by his personal battle with tartar, plaque buildup, and periodontal disease, Dr. Gontarz developed a toothpaste to remove tartar and reverse periodontal disease, impressing his dentist with his results. This led to the creation of the patented TartarEnd® toothpaste. Now on a six-month cleaning schedule with healthy teeth and gums, Dr. Gontarz established TartarEnd LLC in 2016, securing US and foreign patents for his innovative formulation. TartarEnd® toothpaste, available online in many countries, dissolves plaque and tartar, halting periodontal disease progression and preventing tooth loss and cavities. His blogs further explain the chemical processes behind dental issues and how to address them at home.

Articles Written By Dr. John Gontarz, PhD

The Non-Foaming Toothpaste Revolution: How TartarEnd® Does What Foaming Toothpastes Never Could

December 18, 2025

For decades, consumers have trusted foaming toothpastes to protect their teeth and gums—yet these products cannot reach the real source of periodontal disease: plaque, tartar, and bacteria hidden deep below the gumline. Foam creates the feeling of cleaning, but it can’t penetrate gum pockets, dissolve hardened tartar deposits, or stop the bacterial processes that lead to gum inflammation, bone loss,

Why Don’t Many Dentists Recommend TartarEnd® toothpaste …….. Yet!

December 16, 2025

TartarEnd® is new dental technology, first available to the public in 2019. It works differently from traditional toothpaste by penetrating, softening, and dissolving tartar so it can be brushed away at home — something patients can see for themselves. It meets FDA regulations and is registered with Health Canada, the British (UK), and the European (EU) regulatory authorities. Many people

The Connection Between Sugar & Dental Tartar

May 1, 2025

Everyone loves a sweet treat, right? Whether it’s chocolate, cake or your favourite candy, those sugary indulgences bring temporary moments of joy to many people! But there’s a huge downside that many don’t realize… The direct connection between those treats and stubborn tartar buildup on your teeth. While most people already know sugar causes cavities, fewer understand how it contributes

The Braces-Friendly Approach to Eliminating Tartar Build-Up

May 1, 2025

Having braces is a commitment to achieving a beautiful, aligned smile, but it also creates its own set of unique challenges when it comes to oral hygiene. One of the most persistent issues braces wearers face is tartar buildup. The brackets, wires, and bands create countless tiny spaces where food particles and plaque can hide, eventually hardening into stubborn tartar

The Different Types of Tartar, Understanding Supragingival Dental Deposits

May 1, 2025

Dental tartar comes in two main forms: Supragingival (above the gum line) Subgingival (below the gum line) When plaque isn’t properly removed through regular brushing and flossing, it hardens into mineral deposits that threaten oral health While supragingival tartar is visible, subgingival tartar hides beneath the gumline, potentially causing serious periodontal disease and tooth loss. Traditional tartar removal typically requires

Why so Many People Lie to their Dentist, and How Tartar End can Help

May 1, 2025

Just under 60% of people admit to lying to their dentist, and honestly, we get it. Whether it’s skipping floss, missing regular check-ups, or pretending you definitely don’t drink soda, most of us have stretched the truth in that dentist chair at some point. We know dentist visits can bring up a mix of emotions: Nerves Embarrassment Even Dread  In

Smoking, Vaping & Tartar, The Hidden Dental Damage

May 1, 2025

Smoking and vaping affect a lot more than just your lungs. These habits can wreak havoc on your oral health, causing everything from unsightly tartar buildup to serious periodontal disease. As dentists and oral health specialists have observed for decades, tobacco users consistently face more dental health challenges than non-smokers. When you smoke or vape, the chemicals in tobacco and

The Critical Differences Between Plaque, Tartar, and Cavities

May 1, 2025

Many people use the terms plaque, tartar, and cavities interchangeably, but these are distinct oral health issues that progress from one to another.  Understanding the difference between these conditions is crucial for maintaining optimal dental health and preventing serious complications.  As dental health experts, we’ll break down each condition, explain how they develop, and show you why preventing them at

10 Habits You Can Do Everyday To Protect Your Teeth & Gums

May 1, 2025

Your smile is a lot more than just an expression. it’s a vital part of your health and well-being, and while regular dental visits are important, what you do every day is what makes the biggest impact on your oral health. The good news is that protecting your teeth doesn’t require expensive treatments or complicated routines. If you can stick

lady with bad breath

How Tartar Buildup Causes Bad Breath and How to Fight It

May 1, 2025

Do you find yourself reaching for mints throughout the day despite brushing your teeth regularly? The culprit behind your persistent bad breath might be hiding in plain sight: tartar buildup on your teeth.  While many people understand that oral hygiene affects breath freshness, fewer realize just how significantly tartar and plaque contribute to halitosis (the medical term for bad breath).