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

How TartarEnd® Works: The Science Behind Dissolving Tartar at Home

Most toothpaste brands try to prevent tartar buildup – but once it hardens, you’re told the only solution is scraping at the dentist. TartarEnd® is different. Backed by U.S. and foreign patents and supported by a presentation of its science to at the National American Chemical Society (ACS) meeting in San Diego in 2022, its formula is designed to soften

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How TartarEnd Helps Reduce Receding Gums – Without Surgery or Scraping

“The dentist said I needed a deep cleaning… but after using TartarEnd®, she said it wasn’t necessary anymore. I went from stage 3–4 back to stage 2!” – Anita, TartarEnd® user For millions of people, gum recession feels like a one-way street. You notice your teeth looking longer, your gums pulling away, and you’re told the only solution is painful

How Dimethyl Isosorbide Helps Dissolve Tartar – And Changed One Patient’s Life

“My gums have started to come back and reattach to my teeth – something a dentist will tell you is impossible!” – Sarah, TartarEnd® user Like many adults, Sarah had been struggling with severe gum recession from years of smoking and dental anxiety. Even though she tried to care for her teeth, she couldn’t stop the tartar buildup happening below

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

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!

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

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

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

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

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