How often should you really get your teeth cleaned?

Reviewed by Jinyu Sun, DDS · November 12, 2026 · 3 min read

Where six months comes from

The twice-a-year rule is a sensible average. For a healthy adult with good home care, six months is roughly how long it takes for tartar to build to the point where a professional cleaning makes a real difference, and it keeps an exam close enough to catch small problems early.

When more often is better

If you have gum disease, a history of frequent cavities, diabetes, a dry mouth from medication, or you smoke, a three- or four-month interval protects you better. The same is true during orthodontic treatment, when aligners or braces make thorough cleaning harder. your dentist will tell you if you fall into one of these groups; it is not a sales pitch, it is the schedule the research supports.

What a cleaning actually does

Brushing and flossing remove plaque, the soft film that forms every day. Once plaque hardens into tartar, no amount of brushing takes it off; only a hygienist's instruments can. Left in place, tartar irritates the gums, which recede and eventually loosen the teeth. A cleaning also lets us catch a small cavity while it is a small filling rather than a crown.

The cost of skipping

Preventive visits are usually covered at or near 100% by dental insurance. The treatment that follows years of skipped visits is not. A filling costs a fraction of a crown; a crown, a fraction of an implant. Keeping the recall appointment is the cheapest decision in dentistry.