What is dental calculus?

What is dental calculus

Dental calculus is plaque that has hardened on the teeth after minerals from saliva bind to it. Once plaque becomes calculus, brushing and flossing cannot remove it completely. A dental professional removes it with hand instruments or ultrasonic tools during a cleaning.

Plaque is a sticky film of bacteria that forms daily, especially along the gumline and between teeth. If it stays in place, it can mineralize into a rough deposit that holds more plaque and makes the surface harder to keep clean. Calculus may appear yellow, tan, brown, or even dark depending on stain and location. It can form above the gumline where you can see it or below the gumline where it contributes to gum inflammation and periodontal pockets. People vary in how quickly they build calculus because saliva chemistry, crowding, brushing technique, and diet all play a role. Removing calculus is one reason professional cleanings remain important even for people who brush consistently.

Why do I need a dental cleaning if I brush?

How often should you get a dental cleaning?

Key Points

• Calculus is hardened plaque, not just surface stain.
• It often collects near salivary ducts, along the gumline, and between teeth.
• A rough calculus surface can trap more bacteria and plaque.
• Only professional instruments can remove attached calculus safely and effectively.
• Daily brushing and interdental cleaning help slow new buildup after a cleaning.

What This Means for You

If you feel rough ledges near your gums, schedule a cleaning rather than scraping at them with sharp objects. Your hygienist can show where deposits collect and which home-care changes may slow them down. The aim is to reduce buildup between visits, not to make home care replace professional scaling.

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