Guides

What an hour of downtime costs a dental practice

The server hung at ten past nine and came back a little before eleven. Nobody sends an invoice for that, so it never appears anywhere you would think to look. This guide works out what the morning actually cost, using your production numbers rather than somebody else's average, and it separates the part you get back from the part you never do.

The arithmetic, in about two minutes

Take a normal day's production. Divide it by the number of clinical hours in that day. That is your hourly figure for the whole practice, and it is close enough to make decisions with.

The reason to go one step further is that downtime does not arrive at an average moment. A Tuesday morning with the dentist and two hygienists running is worth several times a Friday afternoon with one hygienist and a hole in the schedule. So the more useful version is production per provider, per hour, added up for whoever was actually working when the screens went dark. Your practice management software already reports production by provider and by day, so the figure is sitting in the building and you do not need anyone's help to pull it.

A sanity check against published figures

Planet DDS's 2025 Dental Industry Outlook puts average daily production at roughly $3,800 for a dentist and $1,058 for a hygienist. Spread across an eight-hour day, that is about $475 an hour for the dentist and about $132 for the hygienist. One of each working at the same time comes to roughly $600 an hour.

That sits close to the figure dental IT providers publish in their own downtime calculators, which tend to price a single operatory between $560 and $625 an hour. When two routes land in the same place, the order of magnitude is probably right.

Be careful with the next step, because this is where the published calculators overstate. Multiplying a per-operatory rate by the number of operatories assumes somebody is producing revenue in every chair at once. Most practices do not run that way: one dentist covers several operatories while the hygienists work their own. Three chairs held by one dentist and two hygienists comes to roughly $475 plus $132 plus $132, about $740 an hour, rather than the $1,800 the multiplication would hand you. Add up the providers who were actually working instead of counting rooms.

These are national averages, and Lee County is not the national average. Treat them as a check on your own arithmetic rather than a substitute for it. If your number comes out wildly different in either direction, your number is the one that is right.

The part you get back, and the part you never do

Most writing on this subject overstates the case, because not every dollar of interrupted production disappears. Restorative work usually reschedules. A crown appointment that moves to next Thursday is deferred rather than destroyed, provided next Thursday had room for it. In a practice booked three weeks out it does not, so the appointment displaces something else instead.

Hygiene is the opposite, and it is the cleanest loss in the building. The hygienist was on the clock and was paid for the hour whether or not the operatory produced anything. You bought labor and received nothing for it, and no future Thursday gives that back.

Then there is the cascade nobody records. The nine-forty patient starts late, so does the ten-ten, and by eleven somebody has decided their morning is worth more than the appointment and gone home. That patient is the expensive one, because rebooking them is a phone call somebody has to make and might not. Meanwhile the office manager spends the outage on hold with a vendor instead of confirming recalls or presenting treatment plans, and that hour shows up in no production report at all.

So the real figure sits below the full hourly number and well above the wages you paid for work that did not happen. Anyone quoting you the big version is selling something. Run the arithmetic yourself.

It is almost never the software

Practices tend to blame Dentrix, Eaglesoft or Open Dental, because that is the window that froze. The application is rarely the fault. Recurring crashes during patient hours usually trace back to the machines underneath it.

• •A server under strain. Low free storage and disk latency slow the practice management database for every operatory at once, which is why the whole office seems to stall together.
• •Imaging and practice management competing. Sensor capture and the patient database want the same resources at the same moment, and an imaging update that shipped without anyone testing it against the other one is a common trigger.
• •Hardware past about five years. Workstations and servers that were adequate when they were installed struggle with current imaging file sizes, and the failures arrive as intermittent weirdness rather than a clean death.
• •An operating system nobody is patching. Microsoft ended support for Windows 10 on 14 October 2025. A machine holding patient data on an unsupported operating system is a documented gap under the HIPAA Security Rule, and it is one an investigator can see without visiting.

None of those is fixed by changing software, and all of them announce themselves before they take a morning down. Failing drives, storage filling up and services restarting are all visible weeks ahead to anyone watching for them. That is the difference between an office with monitoring and one without: the same fault, found on a Tuesday evening instead of a Wednesday at nine.

Two numbers worth knowing before you shop for IT

The first is your hourly figure, from the arithmetic above. The second is how many hours you lost last year, and most practices genuinely cannot say. If you cannot answer it, that is itself the finding: nobody has been counting, which usually means nobody has been watching either.

Multiply the two and you have the annual cost of the problem. It is the only figure that makes an IT quote legible, because a monthly price means nothing until you know what it is being compared against. Here is ours. It is the same card that appears on our pricing page, not an illustration.