Do You Need a Dental Cleaning Every Six Months?What the Evidence Shows

Most of us were raised on the idea of a dental checkup and cleaning every six months. Many dental plans are even built around it. Here is what research says about how often adults need cleanings.

What the cleaning trials found

A Cochrane review looked at two large U.K. trials with about 1,700 adults who saw a dentist regularly and didn’t have severe gum disease.¹ Over two to three years:¹

• Cleanings every 6 or 12 months made little or no difference to gum inflammation, gum pocket depth or quality of life compared with no scheduled cleaning.
• Regular cleanings slightly reduced tartar, more so every 6 months, but how much that matters is unclear.
• People felt their mouths were cleaner with regular cleanings.

The trials didn’t measure tooth loss, bad breath or side effects.¹

What a 2023 review suggests

A 2023 review of the research on visit frequency found that the evidence behind the six-month rule is weak.² For adults, fixed or risk-based schedules made little difference to cavities and gum disease, and the authors suggested dentists and insurers tailor visit schedules to each person’s risk rather than using one rule for everyone.²

Why after 50 you may need more, not fewer

These findings apply to people at lower risk.¹² Many women over 50 have reasons for closer follow-up:

• Gum disease that needs periodontal maintenance
• Dry mouth from medicines or Sjögren’s disease
• Root cavities from receding gums
• Diabetes, which is linked to gum problems
• Implants, crowns or dentures that need checking

Our guides to deep cleanings, root cavities, dry mouth and Medicare dental coverage explain more.

Questions to ask your dentist

1. What’s my risk for cavities and gum disease?
2. Based on that, how often should I come in?
3. What does my plan cover, and does a different schedule cost more?

Try: “My gums have been healthy for years and I have no new cavities. Is a cleaning every six months still right for me, or could we space them out?”

Is It My Breath? includes a visit script. Use it to ask about your personal risk and the visit schedule that fits it.