Updated on July 9, 2025
5 min read

Dental Calculus Causes & Treatment

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When you flossed for the first time in months, you might have noticed a hard, yellowish crust behind your lower front teeth. That crusty deposit is called dental calculus, commonly known as tartar, and it's actually hardened dental plaque.

Unlike soft plaque, calculus won't come off with regular brushing. Left untreated, this tough buildup can quietly damage your gums and teeth beneath the surface.

Illustration showing tooth with plaque and healthy tooth comparision

The good news? Understanding what calculus is, why it matters, and how to deal with it can protect your oral health and ease your worries.

How Does Calculus Form?

Dental calculus doesn't form overnight. It starts as plaque, a soft, sticky film of oral bacteria constantly forming on your teeth.

Fortunately, regular brushing and flossing easily remove plaque before it can cause harm. But skip even one day of proper oral hygiene, and that soft plaque is already preparing to turn into something much harder to manage.

If plaque lingers too long, minerals from your saliva, particularly calcium phosphate crystals, start binding with the plaque, transforming it into hard, stubborn calculus.

This mineralization can begin within 48 hours, making calculus impossible to remove with your toothbrush alone. Scrubbing harder won't help once plaque hardens. Instead, you'll need professional help from a dental hygienist or dentist to safely remove it.

Where Does Calculus Typically Form?

The common areas where calculus typically occurs include:

  • Behind your lower front teeth ⁠— A frequent area due to the saliva glands beneath your tongue.
  • Outer surfaces of your upper molars ⁠— Difficult to clean thoroughly, these areas often accumulate plaque unnoticed.
  • Between crowded teeth ⁠— Tight spaces trap plaque and promote calculus formation.
  • Around orthodontic appliances ⁠— Braces and wires can harbor plaque, encouraging rapid calculus buildup.

Health Risks Caused by Dental Calculus

Dental calculus isn’t just unsightly—it's a breeding ground for bacteria that put your oral and overall health at risk.

The bacteria hiding within calculus irritate your gums, causing gingivitis, a mild gum inflammation. Left unchecked, gingivitis often advances into periodontitis, a serious gum infection affecting nearly half of U.S. adults over 30, which can lead to tooth loss.

Even more troubling, calculus can hide cavities beneath its hard exterior, allowing tooth decay to progress undetected. And the inflammation it fosters doesn't stop in your mouth; it has implications for your overall health.

Meanwhile, systemic health risks include:

  • Heart disease ⁠— People with gum disease face around a 20% higher risk of cardiovascular problems.
  • Diabetes complications ⁠— Gum infections can worsen blood sugar control, making diabetes harder to manage.
  • Pregnancy risks ⁠— Gum disease during pregnancy may lead to premature birth or low birth weight.
  • COVID-19 severity ⁠— Recent studies suggest severe gum disease may significantly increase your risk of COVID-19 complications.

Be alert to warning signs like bleeding gums, bad breath, or tooth sensitivity. Recognizing these early can save your smile—and possibly more.

Why At-Home Remedies Don’t Fix Dental Calculus

If you’ve ever thought of removing that stubborn calculus yourself, you’re not alone. Many turn to tartar-control toothpaste, metal scrapers, or DIY remedies like baking soda pastes, but these approaches have significant limitations and risks.

Tartar-control toothpastes contain ingredients like pyrophosphates or zinc citrate that effectively reduce the formation of new calculus. However, once tartar is already hardened onto your teeth, no toothpaste can dissolve or remove it completely. They’re preventive, not curative.

On the other hand, attempting DIY removal with metal dental scalers or sharp instruments is hazardous. Without proper training, you risk damaging your enamel or gums, possibly leading to gum recession or even infections.

Professional cleaning, despite the cost, is much safer and ultimately cheaper than fixing enamel damage from DIY attempts.

Professional Treatments for Dental Calculus

Tartar that’s already on your teeth requires professional care. Fortunately, with regular dental cleanings and some daily habits, you can keep calculus buildup minimal and manageable.

Scaling and root planing is the gold-standard dental procedure for removing calculus. Your dental hygienist or dentist will use specialized tools (either manual instruments or ultrasonic devices) to gently scrape away tartar deposits from your teeth and beneath your gums.

Local anesthetics can ensure the procedure is pain-free, though mild sensitivity or minor bleeding afterward is normal. The investment in regular cleanings greatly outweighs the potential cost of serious gum disease or advanced dental treatments.

How to Prevent Plaque and Calculus Buildup

Between professional cleanings, effective daily hygiene habits are essential:

  • Brush correctly twice daily ⁠— Use fluoride toothpaste, and brush gently at a 45-degree angle to the gums.
  • Floss nightly ⁠— Reach the plaque hiding between teeth, where calculus often starts.
  • Consider interdental brushes ⁠— They are more effective than floss in wider spaces or if you have existing gum issues.
  • Try a water flosser ⁠— Great as an additional tool, especially with braces or dental implants, but not a floss substitute.

Look for products approved by the American Dental Association (ADA) to ensure quality and safety.

Lifestyle Tweaks for Fewer Deposits

Simple lifestyle changes can drastically reduce your tartar formation:

  • Eat smart ⁠— Limit sugary snacks and beverages. Sugar feeds plaque bacteria, promoting calculus.
  • Quit smoking ⁠— Tobacco users are more prone to tartar and gum disease due to reduced saliva and compromised gum healing.
  • Manage your health ⁠— Diabetics should closely monitor blood sugar to minimize gum inflammation.
  • Visit your dentist regularly ⁠— Typical visits are every six months, but your dentist might suggest every three to four months if you're prone to rapid tartar buildup or have past gum issues.

Dental calculus might seem intimidating, but the formula for success is straightforward. Professional cleanings remove existing tartar, while diligent daily care prevents future buildup. Your proactive steps today protect not just your teeth but your overall well-being.

Last updated on July 9, 2025
7 Sources Cited
Last updated on July 9, 2025
All NewMouth content is medically reviewed and fact-checked by a licensed dentist or orthodontist to ensure the information is factual, current, and relevant.

We have strict sourcing guidelines and only cite from current scientific research, such as scholarly articles, dentistry textbooks, government agencies, and medical journals. This also includes information provided by the American Dental Association (ADA), the American Association of Orthodontics (AAO), and the American Academy of Pediatrics (AAP).
  1. Oral health (Fact sheet). World Health Organization, 2025. 
  2. Sanz et al. Treatment of stage I–III periodontitis—the EFP S3 level clinical practice guideline. Journal of Clinical Periodontology, 2020.
  3. Walsh et al. Routine scale and polish for periodontal health in adults. Cochrane Database of Systematic Reviews, 2019.
  4. Al-Hashedi et al. Aragonite toothpaste for management of dental calculus: A double-blinded randomized controlled clinical trial. Clinical and Experimental Dental Research, 2022.
  5. Huang et al. Association between periodontal disease and systemic diseases: A cross-sectional analysis of current evidence. Military Medical Research, 2024.
  6. Cai et al. Nature of the interplay between periodontal diseases and COVID-19. Frontiers in Dental Medicine, 2021.
  7. Cai et al. Dental calculus formation rate: The role of salivary proteome and metaproteome. Journal of Clinical Periodontology,  2025.
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