What is Tartar (Calculus)?

Tartar, also called calculus, is hardened mineral deposits that form on your teeth. It's not the same as plaque. Here's the difference:

Plaque: A soft, sticky film of bacteria that forms continuously on your teeth. Plaque is the starting material for tartar. Tartar (Calculus): Hardened deposits that form when plaque is not removed and becomes mineralized by saliva. Once calculus forms, you cannot remove it with a toothbrush or floss—only a dental professional can remove it.

Think of tartar as plaque that has "turned to stone." It typically has a yellow or brown color and is rough to the touch.

Why Tartar Matters: Health Consequences

You might think tartar is just a cosmetic issue, but it actually poses real health risks.

Tartar harbors bacteria: The rough surface of tartar provides an ideal surface for bacteria to colonize. Bacteria attach more readily to tartar than to smooth tooth surfaces. As bacteria accumulate on tartar, they produce acids and toxins that attack your tooth structure. Tartar leads to cavities: Bacteria on tartar surfaces produce acid from dietary sugars, eating through tooth enamel and creating cavities. Tartar-covered teeth develop cavities 2-3 times more frequently than tartar-free teeth. Tartar causes gum disease: The bacteria and toxins from tartar irritate your gums, causing inflammation (gingivitis). Early signs include bleeding gums when brushing or flossing. Without intervention, gingivitis progresses to periodontitis (serious gum disease) where the supporting structures around teeth break down, eventually leading to tooth loss. Tartar increases bad breath: The bacteria on tartar produce foul-smelling compounds (volatile sulfur compounds). Patients with heavy tartar accumulation consistently report halitosis (bad breath) that improves dramatically after tartar removal. Tartar may affect systemic health: Bacteria from periodontal disease (tartar-driven) enter the bloodstream during chewing and can contribute to systemic inflammation. Research suggests links to heart disease, stroke, and increased infection risk.

How Tartar Forms: The Timeline

Understanding tartar formation helps you appreciate why daily brushing and flossing matter.

Day 0-1: Plaque begins accumulating After meals, bacteria immediately begin attaching to tooth surfaces. You cannot see this microscopic biofilm yet. Day 2-3: Plaque becomes organized Bacteria secrete a protective matrix (gluey material). The biofilm becomes organized, resistant to your toothbrush, and harder to remove. Day 3-5: Mineralization begins If you haven't removed the plaque yet, calcium and phosphate minerals from your saliva begin crystallizing on the plaque, starting the tartar formation process. Day 7-14: Visible tartar forms In some people (tartar-prone individuals), visible hard tartar deposits appear within 1-2 weeks. These deposits are yellow, brown, or black and cannot be removed by brushing. Weeks 2+: Tartar accumulates Continued tartar accumulation creates more surface area for bacteria. Tartar leads to gum inflammation and eventual gum disease if not removed.

This timeline shows why daily brushing and flossing are critical—you must disrupt plaque before it mineralizes into tartar.

Daily Habits for Tartar Prevention

The best tartar prevention happens at home through consistent daily habits.

Brush twice daily, ideally three times:
  • Brush after breakfast and before bed (minimum)
  • Brush after lunch or afternoon snack if possible
  • Brush for at least 2-3 minutes per session (not just 30 seconds)
  • Use soft-bristled toothbrush (hard or medium bristles damage gums and don't remove plaque better)
Brushing technique:
  • Hold brush at 45-degree angle toward your gum line
  • Use short back-and-forth strokes (not aggressive sawing motions)
  • Brush all surfaces: outer surfaces, inner surfaces, chewing surfaces
  • Brush your tongue (bacteria live there too)
  • Gentle brushing prevents gum recession while still removing plaque
Floss daily:
  • Floss at least once daily, ideally after your largest meal or before bed
  • Proper flossing removes 40% of plaque that your toothbrush misses
  • Floss all tooth contacts (not just obvious spaces)
  • Technique: Gently slide floss between teeth, wrap around tooth root, slide down several times
If you have wide spaces between teeth:
  • Interdental brushes (small cone-shaped brushes) may work better than floss
  • Waterpik or water irrigation devices provide additional benefit (though not a substitute for brushing/flossing)
Don't skip behind back teeth:
  • Back molars are hardest to clean and accumulate the most tartar
  • Spend extra time brushing and flossing your back teeth

Choosing Tartar Control Toothpaste

Anti-tartar toothpastes contain ingredients that reduce (but do not prevent) tartar formation.

Look for tartar control toothpaste if:
  • You notice heavy tartar buildup between dental visits
  • Your dentist mentions you're a "heavy tartar former"
  • Tartar appears within 3 months of professional cleaning
Key ingredients to look for:
  • Pyrophosphate (also called tetrasodium pyrophosphate): The most proven anti-tartar ingredient. Look for products mentioning "pyrophosphate" or listing it early in ingredients
  • Zinc citrate: Another proven ingredient that reduces tartar formation and also inhibits plaque bacteria
Important notes:
  • Tartar control toothpaste is most effective for supragingival tartar (above the gum line)
  • It has minimal effect on subgingival tartar (below the gum line), which requires professional removal
  • Tartar control toothpaste reduces tartar formation by about 30-40%, not 100%
  • Continue excellent mechanical cleaning (brushing and flossing)—toothpaste cannot replace that
Example products: Crest Tartar Control, Colgate Tartar Control, Sensodyne Tartar Control

Dietary Choices and Tartar Risk

What you eat influences how much tartar you form.

Foods promoting tartar formation:
  • High-calcium dairy (milk, cheese, yogurt) increase saliva mineral content, promoting mineralization. Enjoy in moderation
  • High-sodium foods (processed foods, chips, salty snacks) alter saliva composition. Limit salt intake
  • Sugary foods (candy, soda, desserts) feed bacteria and increase plaque formation
  • Frequent snacking (especially sugary snacks) constantly feeds bacteria
Eating habits affecting tartar:
  • Frequent between-meal snacking increases plaque formation opportunities
  • Sticky foods (dried fruit, candy, taffy) adhere to teeth, providing substrate for bacteria
  • Very hot foods increase salivary flow in some individuals, increasing mineral availability
Better dietary choices:
  • Space meals (eat at regular meal times rather than continuous snacking)
  • Choose healthy snacks: cheese (calcium), vegetables, nuts (require chewing, which stimulates saliva)
  • Limit sugary beverages; drink water instead
  • Avoid sticky candies and frequent snacking

Individual Risk Factors: Are You a Heavy Tartar Former?

Some people form tartar quickly despite excellent home care. This is not a personal failing—it's largely determined by your saliva.

You may be a heavy tartar former if:
  • Tartar forms within 3 weeks of professional cleaning
  • Your dentist says you form tartar "very quickly" or are a "heavy former"
  • Tartar accumulation is visible month-to-month
  • Family members also have heavy tartar formation (genetic component)
  • You have very high salivary flow (excessive saliva, frequent thirst)
Risk factors you cannot control:
  • Genetics (some people's saliva chemistry promotes mineralization)
  • Age (tartar formation increases as you age)
  • Sex (males form tartar more readily than females)
  • Medications (antihistamines, antidepressants reduce saliva, increasing tartar indirectly)
Risk factors you can control:
  • Smoking—dramatically increases tartar formation
  • Mouth breathing—dries teeth surface, increasing mineralization
  • Poor home care—allows plaque to mineralize
  • Diabetes with poor blood sugar control
What to do if you're a heavy tartar former:
  • Increase brushing to 3 times daily
  • Increase flossing: Consider twice-daily flossing
  • Use tartar control toothpaste
  • Visit dentist more frequently (4-month intervals instead of 6-month)
  • Ask dentist about antimicrobial rinses you can use at home
  • Address smoking, mouth breathing if applicable

Professional Cleaning Importance

Your dentist or hygienist removes tartar that forms despite excellent home care.

Why you need professional cleaning:
  • Your toothbrush cannot remove calculus once it hardens
  • Below-the-gum-line tartar (subgingival calculus) is completely inaccessible to your toothbrush
  • Professional cleaning prevents gum disease progression
Recommended cleaning frequency:
  • Low tartar formers: Every 12 months (you form minimal tartar)
  • Moderate tartar formers: Every 6 months (most people)
  • Heavy tartar formers: Every 3-4 months (your dentist will advise)
What professional cleaning includes:
  • Removal of visible supragingival tartar (above gum line)
  • Removal of hidden subgingival tartar (below gum line)
  • Polishing to smooth tooth surfaces and remove stains
  • Assessment for cavities and gum disease
  • Fluoride treatment in some cases
If you haven't had cleaning in a while: If it's been >6 months and you notice heavy tartar buildup, schedule a cleaning appointment promptly. Heavy tartar increases gum disease risk significantly.

Signs of Tartar Buildup: What to Look For

Watch for these signs indicating tartar accumulation:

Visible tartar:
  • Yellow or brown deposits along gum line (especially on lower front teeth, which are closest to salivary glands)
  • Hard crusty deposits you cannot remove with your toothbrush
  • Rough, bumpy tooth surfaces (compared to the smooth feeling after professional cleaning)
Gum health changes:
  • Gums that bleed when brushing or flossing (earliest sign)
  • Red or swollen gums
  • Gums that don't feel firm
  • Spaces widening between teeth
Breath and taste changes:
  • Persistent bad breath despite good oral hygiene
  • Metallic or foul taste in your mouth
  • Difficulty tasting food
Tooth appearance:
  • Teeth looking more yellow (tartar stains teeth yellow-brown)
  • Tooth surfaces appearing rougher
If you notice any of these: Schedule a dental appointment promptly. Early intervention prevents gum disease progression.

Smoking and Tartar: Special Consideration

If you smoke, tartar forms 2-3 times faster than in non-smokers.

Why smoking increases tartar:
  • Smoking reduces salivary antimicrobial proteins
  • Smoking alters salivary mineral composition, promoting supersaturation
  • Smoking reduces blood flow to gums, impairing healing
Smoking consequences:
  • Heavy smokers develop heavy tartar within weeks
  • Tartar reaccumulates within 3 weeks of professional cleaning
  • Smoking dramatically increases gum disease risk
  • Smokers are 6-7 times more likely to develop periodontitis
What smokers can do:
  • Schedule professional cleaning every 3-4 months (instead of standard 6 months)
  • Use tartar control toothpaste consistently
  • Brush 3 times daily, floss twice daily
  • Use antimicrobial rinse (ask your dentist) to reduce bacteria
  • Most importantly: Consider smoking cessation. Even temporary reduction significantly improves outcomes

Mouth Breathing and Tartar

If you breathe through your mouth instead of your nose, you form tartar more readily.

Why mouth breathing increases tartar:
  • Mouth breathing dries supragingival tooth surfaces
  • Dry saliva loses protective properties; minerals concentrate
  • Oral pH increases, promoting mineralization
Signs you might be a mouth breather:
  • Your lips part during sleep
  • You wake with dry mouth
  • Persistent bad breath
  • Gum disease despite good oral hygiene
What to do:
  • Consciously practice nasal breathing, especially at night
  • If you have nasal obstruction (deviated septum, chronic sinusitis), talk to your doctor about treatment
  • If you have sleep apnea, treatment often reduces mouth breathing
  • Lip balm before bed can reduce mouth opening during sleep

Conclusion and Action Plan

Tartar prevention depends on:

1. Daily brushing (twice daily, 2-3 minutes with soft brush) 2. Daily flossing (or interdental cleaning for wide spaces) 3. Dietary choices (limit snacking, minimize sugary foods, reduce salt) 4. Professional cleaning at recommended intervals (6-12 months for most people) 5. Lifestyle modifications (quit smoking, reduce mouth breathing if applicable)

If you're a heavy tartar former, add:

  • Tartar control toothpaste
  • More frequent professional cleaning (3-4 months)
  • Consider antimicrobial rinses

Following these strategies significantly reduces tartar accumulation, improves breath, protects against cavities and gum disease, and maintains long-term tooth health.