What Should a Canadian Clinic Record for Ultrasonic Cleaning? Log Fields and Retention
Why a cleaning record exists at all
A sterilization cycle can be documented perfectly and still release an instrument that was never cleaned. Residual soil protects microorganisms inside the load, and no indicator strip on the outside of a pouch reports that. The cleaning step is where the soil is removed, which is why the record of that step carries as much weight as the cycle printout stapled beside it.
In Ontario dental practice the expectation is set out twice: in the college's infection prevention and control standard, and in the self-audit form that practices complete to demonstrate compliance. Both treat cleaning as a documented process with a machine check, a solution standard and a named person responsible.
The weekly test that anchors the whole record
The ultrasonic unit is checked weekly; an automated washer-disinfector is checked daily. That asymmetry looks arbitrary until you consider what each machine can fail at silently. An ultrasonic bath can lose cavitation energy through a failing transducer, a degraded solution or an overloaded basket, and it will keep humming while doing very little. A washer-disinfector has a cycle controller and a thermal record, so it can be interrogated every day.
The weekly test therefore does two jobs: it proves the bath still works, and it fixes a point in time against which every load since the last test can be judged. If the test fails, the loads processed since the last pass become the recall population.
The fields a cleaning log needs
A working cleaning log is short. The temptation is to design a form with twenty columns, which then gets filled in for a fortnight and abandoned.
| Field | What it records | Where the value comes from |
|---|---|---|
| Date and time | When the bath was prepared or tested | The person preparing the bath |
| Machine identifier | Which unit, where it is sited | Asset label on the tank |
| Solution product and dilution | What is in the bath and at what strength | Manufacturer instructions for use |
| Solution date and change interval | When it was mixed and when it is due | Bath label |
| Test method and result | Pass or fail, and how it was tested | Weekly efficacy check |
| Load description | What was processed, by set or by tray | Tray or cassette label |
| Initials | Who prepared, tested or released | The staff member |
| Corrective action | What happened after a fail | Written at the time, not later |
Read the last row again. A log that records failures without recording what followed is a record of a problem, not a record of control.
Documenting the solution, not just the machine
The solution is where most documentation gaps sit. The concentrate is mixed to the concentration in the manufacturer's instructions for use, the bath is labelled with the mix date, and the change interval follows the same instructions rather than a habit inherited from a previous practice. Where a product is sold as a disinfectant it carries a DIN, and that number belongs in the record because it identifies the product beyond a trade name.
Published work on detergent information for dental instrument cleaning has highlighted how inconsistent manufacturer guidance can be on efficacy and material compatibility, which is the practical argument for recording the exact product and dilution rather than writing "enzyme" in the column. If a compatibility question arises later, the record is the only way to answer it.
Where the cleaning record hands off to sterilization
The two records meet at the packaging step. Instruments that have been cleaned and inspected are packaged in pouches or reels, labelled, and sterilized; the pouch label carries the date, the sterilizer, the load or cycle number and, where the contents are not visible, a description. Chemical indicators inside the package respond to the process, and a biological indicator is run for each cycle type at the frequency your guidance requires.
None of that substitutes for the cleaning entry. ISO 17664-1 places the processing instructions with the device manufacturer, ISO 15883-1 defines what a washer-disinfector must demonstrate, and ISO 11140-1, ISO 11138-1 and ISO 11607-1 govern the indicators and packaging that follow. A complete record set reads from left to right: cleaned, packaged, sterilized, released.
Retention: how long to keep it
Ten years from the last entry is the retention expectation stated for the reprocessing log book in Ontario dental guidance. That figure is longer than most practice-management software defaults, and considerably longer than most staff tenures. Two practical consequences follow: export the record to a format you control at least annually, and keep the identification key that maps initials to names, because a ten-year-old record with initials only is hard to defend.
Paper, spreadsheet or software
All three are acceptable; the differences are in how easily the record survives. Paper is durable and instantly signed, but it is only in one place. A spreadsheet is searchable and easy to back up, but a cell can be overwritten without trace. A dedicated module inside practice software is the easiest to complete and the hardest to export.
Most clinics end up with a hybrid: paper at the machine for the working day, scanned or transcribed weekly, with an annual export kept off-site. The important property is not the medium but whether an entry can be attributed to a named person and cannot be quietly changed.
Common gaps an auditor finds
Four gaps recur. The weekly test is recorded as a tick with no method and no result. The solution is recorded by trade name only, with no dilution. The corrective action column is empty after a fail, because the response happened verbally. And the record stops at sterilization, with no link back to the cleaning entry that preceded it.
Each is fixable with a form change rather than a new system. The least expensive improvement is usually to add two columns — solution dilution and corrective action — to whatever sheet is already in use, which costs nothing but a reprint.
Not sure how this applies to your own setup? Ask a sterilization compliance specialist — you will get a written answer specific to your equipment and province, with the regulation or standard cited.
What a cleaning folder usually contains
A complete folder for one month holds four things: the weekly ultrasonic test results, the daily solution preparation entries, the load descriptions that tie instruments to cycles, and the corrective action notes where a test failed. Clinics that scan the folder monthly usually find that the corrective action page is blank, which is either good news or evidence that the column is not being used honestly.
Buying for a facility? Open a wholesale and institutional account for case pricing, purchase-order billing and a named account contact at CliniEco Medical. Reselling? become a distributor.
Where the tank and the solution sit in the order
The cleaning step is consumable-driven: solution, test materials, and eventually the tank itself. A 6 litre dual-frequency benchtop ultrasonic cleaner takes a full instrument cassette, and the 4 litre enzyme concentrate dilutes to the working bath, so both sit on the same reorder sheet. The record then continues onto the Class 4 dual-indicator pouches used at the packaging step, all within the cleaning and disinfection range.
References
- RCDSO — IPAC Self Audit Review Form (form 5542) (checked 20 October 2026)
- RCDSO — infection prevention and control standards and guidelines (checked 20 October 2026)
- Public Health Ontario — Reprocessing of medical devices in office-based settings (checked 20 October 2026)
- Public Health Ontario — IPAC checklist for dental reprocessing (PDF) (checked 20 October 2026)
- Public Health Ontario — IPAC core elements checklist for dental practice (PDF) (checked 20 October 2026)
- Public Health Ontario — Infection prevention and control (checked 20 October 2026)
- IPAC Canada — infection prevention and control guidelines (checked 20 October 2026)
- ISO 15883-1 — Washer-disinfectors, general requirements, terms and definitions and tests (checked 20 October 2026)
- ISO 17664-1 — Processing of health care products, information to be provided by the medical device manufacturer (checked 20 October 2026)
- ISO 11140-1 — Chemical indicators for sterilization, general requirements (checked 20 October 2026)
- ISO 11607-1 — Packaging for terminally sterilized medical devices (checked 20 October 2026)
- ISO 11138-1 — Biological indicators for sterilization processes, general requirements (checked 20 October 2026)
- CCOHS — OSH Answers: biological hazards (checked 20 October 2026)
- Workplace Safety and Prevention Services — resource library (checked 20 October 2026)
- AAMI — standards catalogue for sterilization and reprocessing (checked 20 October 2026)
- Comparative efficacy of ultrasonic cleaning products with different disinfection chemistries on dental instruments (checked 20 October 2026)
- Availability of manufacturers' information on efficacy and compatibility of detergents used for cleaning dental instruments (checked 20 October 2026)
Printable companion: the free sterilization log sheet sets out the same field structure used below, so the cleaning entry and the cycle entry sit on one page instead of two.
If you would rather not redraw the columns, the sterilization log generator prints a cleaning and cycle record with date, solution, test result and initials already laid out.
Related Reading
- Ultrasonic cleaning baths: how do you verify they work?
- Ultrasonic cleaning solution: how often should a dental clinic change it?
- Ultrasonic cleaning solution dilution: how to mix and reuse an enzymatic bath correctly
Frequently Asked Questions
How often should an ultrasonic cleaner be tested in a dental office?
Weekly. The self-audit form used in Ontario dental practice separates the two machines: the ultrasonic unit is checked weekly, while an automated washer-disinfector is checked daily. The weekly check is the entry that anchors the rest of the cleaning record, because a failed test invalidates every load processed since the last pass.
Does the cleaning log need the solution brand and lot number?
Yes, and it is the field most often left blank. The cleaning solution is used at the concentration stated in the manufacturer's instructions, is labelled with a date, and where it is sold as a disinfectant it carries a DIN. Recording the product and the dilution is what lets a reviewer confirm the bath was mixed correctly that week.
What is the difference between a cleaning record and a sterilization record?
The cleaning record proves the instruments were cleaned before packaging; the sterilization record proves the load was exposed to a validated cycle and released correctly. They are two documents with different fields, and the sterilization entry usually references the cleaning entry rather than repeating it.
How long must reprocessing records be kept?
At minimum ten years from the date of the last entry, which is the retention period stated for the reprocessing log book in Ontario dental practice guidance. Clinics that store records digitally should confirm the export survives a software change, because a ten-year obligation outlives most practice-management systems.
Can the log be kept in a spreadsheet instead of on paper?
Yes, provided the columns are complete, entries are attributable to a named person, and the file cannot be silently edited after the fact. A spreadsheet that anyone can overwrite without a trace is weaker evidence than a signed paper sheet, even though both contain the same fields.
What does the weekly ultrasonic test actually involve?
It confirms the bath is still delivering cavitation across the tank rather than only near the transducer. Methods include a foil test, a commercial test strip, or a calibrated test soil, and the record needs the method, the result and the initials of the person who ran it. The specific method is your choice; consistency is what a reviewer looks for.
Do we record cleaning if the instruments are single-use?
No. A single-use device is not reprocessed, so there is no cleaning step to record. The record question only arises for reusable instruments, which is why a treatment room that mixes both needs its inventory clear about which is which.
Where do the ultrasonic supplies fit in the ordering cycle?
The tank, the basket and the enzyme concentrate are consumables with a shelf life, so they belong on the same reorder sheet as pouches and indicator tape. CliniEco Medical supplies the 6 litre dual-frequency benchtop unit and the 4 litre enzyme concentrate that most dental rooms order together.
Last updated: October 2026. CliniEco Medical is a licensed medical device establishment (MDEL #35334).
0 commentaire