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How to protect chair time when lab cases run late

A late lab case costs a practice chair time only when it is a surprise. Here is how to see late cases coming, and what to do with the days you gain.

By the Tusko team

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A late lab case costs chair time only when it is a surprise. Found three days ahead, it is a phone call to the patient. Found at 9:55, it is an empty chair.

So protecting chair time comes down to finding out sooner, and deciding sooner.

This guide covers why late cases surprise people, a daily check that catches them, and what to do with the days you gain.

What an empty seat appointment costs

The room is set up and the team is ready. The patient has taken time off, and there is nothing to seat.

The assistant and the room are booked either way.

That slot cannot be sold again at ten minutes’ notice. The patient still needs a second visit, so the practice gives the time twice.

There is a quieter cost too. A patient who made a wasted trip may think twice before booking the next one.

The practice calculator lets you enter how often this happens and what an hour of your chair is worth.

Why a late case comes as a surprise

Cases run late for ordinary reasons. A question went unanswered, a part was back-ordered, or a courier missed a day.

The surprise has a different cause. The lab knew the date had moved, and the practice’s schedule did not.

Each case has two dates, the lab’s and the seat appointment. They are written in two buildings and nothing connects them.

Why dental lab cases go missing follows a case through each handoff where that happens.

Book the seat with the lab’s date in hand

The cheapest fix happens before the patient leaves. Book the seat appointment against a date the lab has confirmed.

  • Ask for the date when you send the case. A lab that knows your seat date can say at once if it is tight.
  • Leave a gap. A case due back the morning it is seated has no room for a courier delay or a question.
  • Leave a wider gap for harder work. Implant and front-tooth cases draw more questions than a single back crown.
  • Count the lab’s days in working days. Weekends and holidays vanish from a turnaround quoted in days.
  • Note any stage that comes back first. A try-in is its own appointment, with its own date.

If the patient wants an earlier seat than the lab can meet, say so then. A date chosen in hope is easy to miss.

Know which cases to watch hardest

Any case can run late. Some carry more risk from the start, and they deserve the wider gap.

  • The first few cases with a new lab. Neither side knows the other’s habits yet.
  • Work that comes back in stages. Each stage is a delivery that can slip.
  • Implant cases. A part on back-order can hold up everything else.
  • Cases with a question still open. The clock at the lab stops while the question waits.
  • Weeks with a holiday in them. A turnaround quoted in working days gets longer on the calendar.
  • Anything you asked the lab to rush. A rush has no slack left in it.

Mark these when you send them. They are the first ones to read in the morning check, and the last ones to book tight.

Look ahead every morning

A daily check takes a few minutes and catches a late case while there is time to act.

List the seat appointments for the next five working days. Beside each one, write where its case is.

What should be true as a seat appointment gets closer

A timeline of four checks before a seat appointment. Ten or more days before, the lab has confirmed a date. Five days before, no question is waiting on the practice. Two days before, the case has shipped or is in the building. One day before, the case is checked in and opened. Each check has a move to make if it fails.

  1. Ten or more days before

    The lab has confirmed a date

    If it has not, ask for one.

  2. Five days before

    No question is waiting on the practice

    If one is, answer it today.

  3. Two days before

    The case has shipped, or is in the building

    If not, phone the lab and warn the dentist.

  4. One day before

    The case is checked in and opened

    If not, move the appointment now.

The earlier a late case is found, the more moves are still open.

Once a week, read two weeks ahead instead of one. Harder cases need the longer view.

Give the check to one named person. Our free case tracking sheet is set up for exactly this routine.

Decide early when a case will be late

Once you know, there are four moves. The earlier you choose, the more of them are open.

  1. Move the appointment. With two days’ notice this is a short call, and the slot can go to someone else.
  2. Ask the lab what a rush would take. Ask what it would risk as well. A rushed case that needs adjusting saves no chair time.
  3. Use the visit for something else. If the dentist has other work planned for that patient, the slot can still be put to use.
  4. Fill the slot from a short-notice list. Keep a list of patients who have asked to come in sooner.

Waiting to see if the case turns up is a fifth move, and it closes the other four. Avoid it.

Tell the patient early

Phone the patient the day you know. Say the case is not ready, say why if you can, and offer two new times.

A short script helps whoever makes the call. “Your crown is not back from the lab yet, and we would sooner move you than waste your time.”

Keep blame out of it. The patient does not need to know whose date slipped, and the lab is your partner in fixing it.

Then write the new date where the lab can see it. A moved seat appointment that the lab never hears about starts the same problem again.

Agree on warnings with each lab

A lab cannot warn you about a date it does not know matters. Three small agreements fix that.

Put the seat date on every Rx. A lab that can see it knows which of its own delays will hurt.

Ask the lab to tell you the day a date moves, and by which channel. Then make sure someone reads that channel daily.

Tell the lab when you move a seat yourself. It may be able to use the extra days on a case that needs them.

Learn from every late case

A late case is information. Write down what caused it while everyone remembers.

  • A question that waited for an answer
  • A date that was tight from the start
  • A delivery that arrived and was not checked in
  • A delay at the lab
  • A courier or weather problem

After a few months the list has a pattern. One cause will lead it, and that is the thing to fix.

Share the pattern with your lab. How to give your dental lab feedback covers how, and dental lab turnaround times covers planning the dates.

When it does go wrong on the day, the patient is in the chair and the case isn’t back covers what to do next.

Let the dates check themselves

The morning check works for as long as someone does it. A system that reads both dates removes that risk.

Chair Time is the part of Tusko built for this. It shows each seat appointment beside its case, and flags a late case before the patient sits down.

See how it looks for practices, or read how to track dental lab cases in your practice for the wider picture.

How far ahead should a practice check its lab cases?

Far enough to move an appointment without upsetting the patient. A daily look at the coming week, and a weekly look two weeks out, is a workable rhythm.

How much time should we leave between the lab’s date and the seat appointment?

Start with two working days, and adjust once you have a few months of that lab’s dates to look at. Leave more for implant and front-tooth cases, where a question is more likely.

Should we bill the lab for lost chair time?

That is between you and the lab. Find the cause first, because it may turn out to be a question that sat unanswered at the practice. A calm talk with the dates in front of you both goes further than an invoice.

What do we tell a patient whose case is late?

The truth, as soon as you know it, with a new time offered in the same call. A moved appointment is an inconvenience. A wasted trip is what a patient remembers.