Dental cleanings and insurance
Why plans usually pay two cleanings a year in full, how the six-month rule catches people out, and when a cleaning becomes perio maintenance.
A routine cleaning is the textbook preventive service: plans in the 100-80-50 structure usually pay it at 100%, and the deductible is usually waived. Almost every surprise comes from the frequency limit.
Typical limits
- 2 cleanings a year, usually at least 6 months apart.
- Some plans count “2 per calendar year”, others “1 every 6 months”. Under the second rule a cleaning one day early is denied even if it is only the second of the year.
- Plans that cover perio maintenance often count it against the same limit, or set a separate one.
Why cleaning claims come back unpaid
- Too soon. The last cleaning, at any office, was less than the plan's interval ago.
- Already used twice this year, often at a previous dentist. Ask new patients, and check the claims history.
- A deep cleaning was billed instead. If the records don't show the pocket depths the plan requires, some insurers pay the visit as a regular cleaning instead. See scaling and root planing.
Before the visit
- Check the cleaning limit and how the plan counts it.
- Find the last paid cleaning in the claims history.
- If the patient had gum treatment, check whether the visit is a cleaning or perio maintenance, because plans pay them differently.
This is how plans usually work, not how every plan works. The patient's own plan documents and the insurer decide what's paid.
Codes you'll see
CDT is a registered trademark of the American Dental Association. Tabruns is not affiliated with or endorsed by the ADA. The descriptions here are our own plain-English summaries, not the ADA's official wording; use your current CDT manual or practice software for the official code set.
Terms on this page
Sources
Read November 11, 2026. Where a source describes one insurer's plans, we say so.
Get the patient's share in dollars, from the benefits page
Knowing how plans pay for cleanings is half the job. Tabruns reads the coverage, deductible, yearly maximum, waiting periods and frequency limits from the insurer's portal and works out what the patient owes. Patient details stay on the office computer.
Not ready? Try the free patient portion calculator.