Descaling teeth, formally called scaling and root planing, is a deep cleaning procedure that removes hardened mineral deposits from your teeth both above and below the gumline. Unlike a routine cleaning, which polishes the visible surfaces of your teeth, descaling targets calcified buildup called calculus (tartar) that has bonded to tooth surfaces and can’t be brushed or flossed away. It’s one of the most common treatments for gum disease and is typically recommended when pockets between your gums and teeth measure 4 millimeters or deeper.
How Tartar Forms and Why Brushing Can’t Remove It
Tartar starts as plaque, the soft, sticky film of bacteria that forms on your teeth throughout the day. When plaque isn’t removed quickly enough, minerals from your saliva seep into it and harden it into a calcified deposit. This process is called petrification, and the result is a rough, cement-like substance made primarily of calcium phosphate mineral salts packed between remnants of bacteria. A fresh layer of living plaque constantly grows on top of existing tartar, creating a cycle that accelerates buildup.
Once plaque has calcified, no amount of brushing or flossing will dislodge it. Anti-tartar toothpastes contain chemical mineralization inhibitors that can slow this hardening process and keep some deposits soft enough to remove at home, but they can’t reverse tartar that has already formed. That’s why professional descaling is necessary: it physically breaks the bond between the calcified deposit and the tooth surface.
What Happens During the Procedure
Descaling has two phases. The first, scaling, removes tartar from the tooth crowns and from below the gumline. The second, root planing, smooths the root surfaces underneath the gums so that bacteria and tartar are less likely to reattach and so the gum tissue can heal snugly against the tooth again.
Your dentist or hygienist will use one of two main instrument types, and often both. Hand instruments called curettes give the clinician precise tactile feedback as they scrape deposits from each tooth surface. Ultrasonic scalers use rapid vibrations along with a stream of water to shatter tartar and flush debris from pockets. Ultrasonic tools are especially useful for reaching deep pockets and the areas where roots fork, and they tend to make the procedure faster.
A full-mouth session takes roughly two and a half to three hours of active scaling time. Most offices split this into two or four appointments, treating one or two quadrants of the mouth at a time. Splitting the work up keeps each visit shorter and gives your gums a chance to begin healing between sessions.
Pain Management During Descaling
Because instruments work below the gumline where tissue is sensitive, local anesthetic injections are standard for scaling and root planing. Your dentist will numb the quadrant being treated so you feel pressure but not pain. In some cases, a topical numbing gel is applied first to reduce the sting of the injection itself. If you have mild gum disease and shallow pockets, you may only need the topical gel. For patients with dental anxiety, nitrous oxide (laughing gas) is sometimes offered as an additional comfort measure.
Recovery and What to Expect Afterward
Your gums will feel tender and sore for about four to seven days after each session. Some bleeding when you brush or floss is normal during the first two weeks. Sensitivity to hot, cold, and sweet foods is also common because the gum tissue shrinks as inflammation resolves, temporarily exposing parts of the root surface that were previously covered.
For the first three days, stick to soft foods and avoid anything crunchy like nuts or popcorn, as well as hot and spicy dishes that can irritate healing tissue. If you smoke, avoid tobacco for at least six hours after the procedure, since the chemicals slow healing and increase infection risk. Continue brushing and flossing gently throughout recovery to keep new plaque from forming on the freshly cleaned surfaces.
Full gum healing typically takes four to six weeks. As the infection clears and inflammation subsides, swollen gums shrink back and tighten around the teeth. This is actually a sign of success, even though your teeth may temporarily look slightly longer. Your dentist will schedule a follow-up, usually four to six weeks later, to measure your pocket depths again and confirm the gums are reattaching properly.
How Descaling Differs From a Regular Cleaning
A standard prophylaxis (the cleaning you get at a routine checkup) removes plaque and light tartar from the visible portions of your teeth and polishes the enamel. It’s a preventive measure for people with healthy gums. Descaling goes further: it treats existing gum disease by cleaning below the gumline, into pockets where bacteria have already caused tissue damage. The root planing step has no equivalent in a regular cleaning.
In practical terms, a regular cleaning takes 30 to 45 minutes in a single visit and rarely requires numbing. Descaling requires anesthesia, takes multiple appointments, and involves a recovery period. The cost difference reflects this. While fees vary widely by location and insurance, scaling and root planing is billed per quadrant, and treating one quadrant with four or more teeth can cost several times more than a standard adult cleaning.
Effects Beyond Your Mouth
Gum disease isn’t just a dental problem. When bacteria from infected pockets enter the bloodstream, they trigger low-grade chronic inflammation throughout the body. This systemic inflammatory load is linked to higher risks of cardiovascular disease, kidney disease, and complications in people with diabetes.
The connection to diabetes is especially well studied. A 2025 meta-analysis published in Frontiers in Clinical Diabetes and Healthcare found that periodontal treatment, including scaling and root planing, reduced HbA1c (a key blood sugar marker) by an average of 0.64 percentage points at three months. It also lowered C-reactive protein, a marker of systemic inflammation. For context, that HbA1c reduction is comparable to what some diabetes medications achieve, which is why researchers have suggested periodontal care could serve as a meaningful complement to standard diabetes management.
How Often You’ll Need It
Descaling is not a one-time fix. After your initial treatment and the follow-up evaluation, most people with a history of gum disease are placed on a periodontal maintenance schedule, typically every three to four months rather than the standard six-month cleaning interval. These maintenance visits are shorter than the original deep cleaning but go below the gumline to catch any new tartar formation before pockets deepen again. Over time, if your gum health stabilizes, your dentist may extend the interval between visits. Consistent daily flossing and brushing remain the most important factors in preventing tartar from rebuilding between appointments.