Getting rid of plaque depends on where it is. Most people searching this question mean the sticky film on their teeth, which is removed through daily brushing, flossing, and professional cleanings. But plaque also builds up inside arteries, and that type requires a different approach involving cholesterol management, medication, and lifestyle changes. Here’s how to tackle both.
What Dental Plaque Actually Is
Dental plaque is a soft, colorless biofilm of bacteria that forms on your teeth within hours of eating. It feeds on sugars and starches in your food, producing acids that erode enamel and irritate gums. Left alone for about 48 to 72 hours, plaque hardens into tartar (also called calculus), a crusty deposit that you can no longer brush off yourself. Tartar traps even more bacteria against your teeth and gumline, accelerating decay and gum disease.
Daily Habits That Remove Dental Plaque
The American Dental Association recommends brushing twice a day with fluoride toothpaste for at least two minutes each session. That two-minute minimum matters because it takes time for the bristles to physically disrupt the biofilm across all tooth surfaces. An electric toothbrush with a built-in timer can help, but a manual brush works if you’re thorough.
Flossing once a day clears plaque from the tight spaces between teeth where bristles can’t reach. If you skip flossing, those contact points become the most common spots for cavities and early gum disease. Interdental brushes or water flossers are solid alternatives if traditional floss feels awkward.
Antimicrobial mouth rinses add another layer of protection. Chlorhexidine rinses are considered the gold standard for killing biofilm bacteria, but lab research shows that toothpastes containing herbal extracts or chitosan (a compound derived from shellfish shells) can match chlorhexidine’s immediate bacteria-killing ability. These formulations also showed ongoing antibacterial effects as new bacteria tried to reattach to tooth surfaces.
Foods That Help or Hurt
Plaque bacteria thrive on fermentable carbohydrates, meaning sugary and starchy foods that break down quickly in your mouth. Every time you eat a cookie or sip a soda, oral bacteria convert those sugars into acid, dropping the pH in your mouth and creating conditions for enamel damage. Frequent snacking keeps that acid cycle going all day.
Some foods actively work against plaque. Cheese, nuts, cow’s milk, and animal proteins buffer your mouth’s pH back toward neutral, counteracting the acid that bacteria produce. Plant polyphenols found in tea, coffee, cranberries, and wine inhibit the acid production of oral bacteria. Even licorice root contains a compound called glycyrrhiza that interferes with one of the main cavity-causing bacteria. Eating proteins or fats alongside carbohydrates helps neutralize the acid spike, so pairing bread with cheese is meaningfully better for your teeth than bread alone.
Non-nutritive sweeteners like aspartame and sucralose don’t feed oral bacteria at all, making sugar-free gum a genuinely useful tool for plaque control between meals. Chewing stimulates saliva, which naturally rinses bacteria and buffers acid.
When You Need a Professional Cleaning
Once plaque hardens into tartar, no amount of brushing or flossing will remove it. Only a dental professional has the instruments to scrape or vibrate tartar off your teeth. A standard cleaning handles buildup above the gumline, but if tartar has crept below the gums, you may need a deeper procedure called scaling and root planing.
During scaling, your dentist or hygienist uses hand scrapers or ultrasonic tools to remove plaque and tartar from below the gumline, sometimes reaching all the way down to the tooth roots. Root planing then smooths the root surfaces so bacteria have a harder time reattaching. This is the only way to clear the deep pockets of bacteria that drive periodontal disease. Your toothbrush simply cannot reach that far beneath the gum tissue.
Most people benefit from professional cleanings every six months, though your dentist may recommend more frequent visits if you’re prone to heavy buildup or have early signs of gum disease.
Arterial Plaque Is a Different Problem
Plaque inside your arteries is made of cholesterol, fat, calcium, and inflammatory cells that accumulate in vessel walls over years. This process, called atherosclerosis, narrows arteries and can eventually trigger heart attacks or strokes. Unlike dental plaque, you can’t feel arterial plaque building up, and it requires medical treatment rather than a toothbrush.
The most effective tool for reversing arterial plaque is lowering LDL cholesterol, often called “bad” cholesterol. A large body of clinical evidence shows that statin medications shrink plaque in a dose-dependent way: the more you lower LDL, the more plaque regresses. Statins also change plaque composition in a favorable direction, converting dangerous soft plaque into more stable calcified plaque that is less likely to rupture and cause a heart attack. Imaging studies have confirmed that intensive statin therapy thickens the protective fibrous cap over plaques and reduces their inflammatory, fatty core.
LDL Targets for Arterial Plaque
The 2026 ACC/AHA guidelines set specific cholesterol goals based on how much calcium has already accumulated in your coronary arteries. For people with significant buildup, the target is an LDL below 55 mg/dL, with at least a 50% reduction from baseline. For moderate buildup, the goal relaxes slightly to below 70 mg/dL. Even people with mild early-stage plaque are advised to get LDL under 100 mg/dL.
Statins are the first-line treatment at every level, though additional cholesterol-lowering medications can be added when statins alone aren’t enough to hit these targets. The key principle is straightforward: lower LDL means less plaque progression and, in many cases, actual shrinkage of existing deposits.
Exercise and Arterial Plaque
Regular aerobic exercise influences arterial plaque in a way that parallels what statins do. Research from the MARC-2 study found that the most active athletes had plaque that was more heavily calcified and less “mixed” (partially soft, partially hard). That sounds counterintuitive, but calcified plaque is structurally more stable and far less likely to rupture and cause a cardiovascular event than soft or mixed plaque.
In other words, vigorous exercise may not make plaque disappear entirely, but it appears to transform dangerous plaque into a safer form. This benefit sits on top of the well-established effects of exercise on blood pressure, blood sugar, and inflammation, all of which slow plaque growth in the first place.
The Common Thread
Whether it’s on your teeth or in your arteries, plaque is far easier to prevent than to remove once it’s established. Dental plaque takes less than a day to start forming and only a few days to harden into something you can’t handle at home. Arterial plaque builds silently over decades but responds meaningfully to cholesterol reduction and physical activity. In both cases, the most effective strategy is consistent daily maintenance rather than waiting for a problem to develop.