Calcium deposits on your gums are almost certainly dental calculus, commonly called tartar. Once formed, tartar cannot be removed at home. It requires professional removal by a dentist or dental hygienist using specialized instruments. The good news: the procedure is straightforward, and with the right daily habits, you can significantly slow new deposits from forming.
What Calcium Deposits on Gums Actually Are
These hard, crusty deposits start as soft plaque, the sticky film of bacteria that builds up on your teeth throughout the day. Your saliva is naturally supersaturated with calcium and phosphate. When plaque sits on your teeth long enough, those minerals soak into it and harden it into a calcified mass. Plaque can begin hardening in as little as four to eight hours, though full mineralization typically takes 10 to 12 days. The speed varies depending on your saliva’s pH and mineral content, which is why some people build up tartar much faster than others.
There are two types. Supragingival calculus forms above the gumline, where you can see it. It often appears as yellowish or white crusty patches near the base of your teeth, especially behind the lower front teeth and near the upper molars, which sit close to your salivary glands. Subgingival calculus forms below the gumline inside the pockets between your teeth and gums. You can’t see it, but it’s the more harmful type. A two-year study of early gum disease in adolescents found that subgingival calculus was the strongest factor associated with subsequent loss of attachment between teeth and gums.
Why You Can’t Remove Tartar at Home
Unlike soft plaque, tartar bonds firmly to tooth surfaces. No amount of brushing or flossing will break it loose. You may have seen metal scaling tools or “plaque scrapers” sold online for home use. Using these without training carries real risks: you can scratch your enamel (causing tooth sensitivity), damage delicate gum tissue (leading to gum recession and exposed roots), injure your cheeks or tongue, or accidentally push tartar beneath the gumline, where it can cause gum abscesses and deeper infection.
Dental professionals spend years learning how to angle and pressure these instruments correctly. The tools may look simple, but the technique is not.
What Professional Removal Looks Like
A standard dental cleaning includes scaling, which is the mechanical removal of plaque and calculus from around and just below the gumline. Your hygienist uses hand instruments and often an ultrasonic scaler, which vibrates at high frequency to break tartar free while spraying water to flush debris away. For most people, this is quick and causes only mild discomfort.
If tartar has built up significantly below the gumline and you’ve developed gum disease, your dentist may recommend a deeper procedure called scaling and root planing. This involves cleaning all the way down the tooth roots inside periodontal pockets, then smoothing the root surfaces so gum tissue can reattach more easily. It’s considered the gold standard first treatment for periodontitis. Depending on severity, it may be done in one visit or split across two to four appointments, sometimes with local anesthesia to keep you comfortable.
How Often You Need Cleanings
Most dentists recommend a professional cleaning every six months. But if you’re prone to heavy tartar buildup, have gum disease, a family history of cavities, or a weakened immune system, you may need cleanings every three to four months. Your dentist can assess your rate of buildup and recommend a schedule that keeps deposits from causing damage between visits.
What Happens If You Leave Tartar Alone
Tartar isn’t just a cosmetic problem. Its rough, porous surface gives bacteria an ideal place to colonize, accelerating plaque formation and making oral hygiene harder to maintain. Over time, the bacterial toxins and the tartar itself trigger chronic inflammation in your gum tissue.
Recent research suggests tartar may cause tissue damage through more than one pathway. Beyond harboring bacteria, sterile calculus itself appears to trigger an inflammatory form of cell death called pyroptosis when connective tissue cells absorb it. Animal studies have shown that even sterile calculus placed in tissue produces generalized inflammation and granulation tissue. This helps explain why inflammation in gum pockets almost always clusters around calculus deposits. Left untreated, this progression leads to periodontitis: the gums pull away from the teeth, bone supporting the teeth breaks down, and teeth can loosen or need extraction.
How to Slow New Deposits From Forming
You can’t stop tartar entirely if your saliva chemistry favors it, but you can dramatically reduce how much forms between cleanings.
Brush effectively, twice a day. The goal is removing soft plaque before it mineralizes. Electric toothbrushes have a measurable edge here. In one clinical trial, participants using a powered toothbrush saw a 60% reduction in plaque scores over just one week compared to baseline. The oscillating or sonic motion reaches areas that manual brushing often misses. If you stick with a manual brush, use short, gentle strokes angled toward the gumline, and spend a full two minutes.
Floss or use interdental brushes daily. Plaque between teeth is invisible to your toothbrush. If you skip these areas, mineralization happens in the spots you can’t easily see or reach.
Choose an anti-tartar toothpaste. Look for active ingredients like pyrophosphates or zinc citrate on the label. A systematic review of clinical trials found that toothpastes containing pyrophosphates, zinc compounds, or a specific copolymer significantly reduced calculus formation. The most effective combination in the reviewed studies was pyrophosphate with copolymer, which produced the largest reduction in new tartar. These ingredients work by interfering with the crystallization process that turns soft plaque into hard calculus. They won’t remove existing tartar, but they slow the formation of new deposits.
Pay extra attention to problem areas. Tartar tends to concentrate behind the lower front teeth and on the cheek side of upper molars because these spots sit closest to your salivary gland openings, where mineral-rich saliva flows most heavily. Spending extra brushing time on these areas helps keep plaque from sitting long enough to harden.
Don’t skip water. Staying hydrated supports saliva flow, which helps rinse food debris and bacteria from your mouth. A dry mouth lets plaque accumulate faster.