The True Cost of a Vacant Dentist Chair: 5 Numbers Every Practice Owner Should Know

A vacant dentist chair is more than an unused piece of equipment.

It is lost production, continuing overhead, delayed treatment, and reduced patient access. Every day the chair remains empty, your practice pays for capacity it cannot use.

At a recent trade show, the Proxi Dental Staffing team explored this issue through a practical, dentist-focused lens: What does an unfilled associate dentist or specialty-provider role really cost, and when does temporary coverage make financial sense?

According to estimates presented in Proxi’s conference and trade-show materials, practices may lose $40K–$80K in monthly revenue per unfilled associate-dentist role and $100K+ in monthly revenue per unfilled specialty-provider role. The same conference graphic also presents $780,000 as an illustrative annual cost for one empty associate-dentist chair.

These figures are estimates, not guarantees or universal benchmarks. Your actual exposure depends on your schedule, fees, procedure mix, payer mix, collections, and operating costs. But the underlying principle is consistent:

> If the production preserved by a locum tenens dentist is greater than the cost of temporary coverage, temporary coverage can protect both revenue and continuity.

Here are five numbers to help you evaluate the decision.

1. Start with Proxi’s conference estimate for an empty associate-dentist chair

If you are trying to quantify an open doctor schedule fast, the clearest starting point in Proxi’s conference materials is this:

Estimate $40K–$80K in monthly revenue lost for an unfilled associate-dentist role.
Use $780,000 as Proxi’s illustrative annual estimate for one empty associate-dentist chair.
Treat both figures as estimates, not guaranteed or universal benchmarks.

A dentist chair only produces when:

A licensed dentist is available.
Patients are scheduled.
Treatment can move forward.
Your team can support the clinical workflow.

When an associate dentist leaves and the role remains open, your operatory, equipment, team, and patient demand may still be there. Provider capacity is not.

That creates an immediate revenue gap.

The key point is not that every practice loses the same amount. The key point is that an empty associate-dentist chair can become expensive quickly, especially in a practice with a full schedule and active treatment pipeline.

Importantly, the $780,000 figure should be described exactly as it appears in Proxi’s conference materials: an illustrative annual estimate for one empty associate-dentist chair. It should not be presented as simply 12 times the full $40K–$80K monthly range.

Review your last 12 months of associate-dentist production.

Calculate the average monthly and daily production tied to the open role.

Separate gross production from collections so you can evaluate vacancy risk using the metric that matters most to your practice.

2. Compare associate and specialty-provider vacancy exposure

Not every doctor vacancy carries the same production risk.

Proxi’s conference graphic distinguishes between two dentist-focused scenarios:

Associate Dentist: $40K–$80K in estimated monthly revenue lost
Specialty Provider: $100K+ in estimated monthly revenue lost

That difference matters if you are deciding how aggressively to pursue coverage through a dental staffing agency or whether to bring in a locum tenens dentist while recruiting.

A specialty schedule often carries higher-value procedures, longer case value, and greater downstream treatment impact. In practical terms, that means an open orthodontist, oral surgeon, endodontist, periodontist, or pediatric specialist schedule may create a larger revenue gap than an open general associate schedule.

Those downstream effects matter. An unfilled dentist schedule can interrupt:

A diagnosed treatment plan.
A restorative or specialty procedure.
A referral handoff.
A follow-up visit.
Continued care from an existing patient.

When appointments are delayed because no dentist is available, patients may postpone care or shift to a competitor. That risk is specifically highlighted in Proxi’s conference materials and becomes more serious the longer the vacancy continues.

Measure production separately for associate and specialty schedules.

Compare the open role’s historical production with current capacity.

Model a conservative, expected, and high-demand scenario before deciding how long you can afford to wait.

3. Account for the hidden costs beyond lost production

The conference estimate is only part of the story.

Proxi’s trade-show materials make three additional points that practice owners should not ignore:

Expect patients to shift to competitors after delayed appointments.
Recognize that existing staff may burn out covering gaps.
Remember that every week the chair stays empty, the cost compounds.

This is where dental practice staffing becomes more than a recruiting task. It becomes a business-continuity strategy.

A vacant associate-dentist or specialty-provider role can lead to:

Cancelled or postponed appointments.
Longer wait times for new patients.
Delayed diagnosis and treatment acceptance.
Underused operatories and support staff.
Schedule compression for your remaining doctors.
Front-desk strain from rescheduling and patient complaints.

Burnout is especially important. When your existing doctors and team members keep stretching to cover the gap, short-term patchwork can create long-term instability. That may contribute to turnover, lower morale, and additional staffing pressure later.

Track appointment delays tied to the open role.

Count how many patients are being pushed out by two, three, or more weeks.

Monitor overtime, morale, and workload on the team covering the vacancy.

4. Calculate your monthly vacancy cost using the conference ranges

The fourth number is your real monthly vacancy exposure.

Proxi’s conference materials provide useful planning ranges for dentist-focused staffing gaps:

Associate-dentist vacancy: $40K–$80K per month in estimated lost revenue
Specialty-provider vacancy: $100K+ per month in estimated lost revenue

Again, these are conference estimates, not guarantees. Your actual numbers may be higher or lower.

Use this simple formula to test the estimate against your own schedule:

> Monthly lost production = Empty clinical days × Average daily dentist production

For example, if your open associate-dentist schedule historically produced about $3,500 per day over 20 business days:

$3,500 × 20 days = $70,000 in monthly lost production

That falls within the conference’s estimated $40K–$80K monthly range for an associate dentist.

If your specialty schedule historically produced $5,000 or more per day, your monthly exposure may quickly move into $100K+ territory, which aligns with the conference estimate for an unfilled specialty-provider role.

That does not mean every dollar would have become profit. You still would have incurred variable costs to deliver care. But rent, equipment leases, insurance, utilities, technology, and many payroll expenses continue whether the chair is producing or not.

And as Proxi’s conference graphic stresses, the cost compounds over time.

Add fixed overhead that continues during the vacancy.

Estimate the value of treatment that may be delayed, unscheduled, or lost.

Recalculate the exposure every week while the position remains open.

5. Find the break-even point for a locum tenens dentist

The most important number is not the locum’s day rate by itself.

It is the break-even point between temporary coverage and leaving the chair empty.

Use this basic comparison:

> Production preserved by locum coverage − Total locum cost = Financial benefit of coverage

Your total locum cost may include:

Compensation or per diem.
Agency fees.
Travel, lodging, or mileage.
Credentialing and licensing administration.
Any required onboarding or technology setup.

For an illustrative example, assume:

Expected daily production from the open associate-dentist schedule: $3,500
Total daily locum cost: $2,000
Coverage: 20 days

The simplified production protected would be $70,000. The simplified coverage cost would be $40,000, leaving $30,000 in gross production before other practice expenses.

That does not automatically make every locum arrangement profitable. Schedule density, payer mix, procedure mix, collections, and clinical fit all matter.

But it gives you a rational way to evaluate the decision and compare it with the conference estimate for an open chair.

A locum tenens dentist can be especially valuable when you need:

Immediate coverage after an unexpected departure.
Support while recruiting a permanent associate.
Coverage during leave, illness, or extended time away.
Specialty coverage while you search for the right long-term provider.
A way to protect a full schedule without making a rushed permanent hire.

Request a transparent estimate from your dental staffing agency.

Compare that cost with the production your practice can realistically preserve.

Confirm credentials, clinical experience, availability, and practice fit before the assignment begins.

Why temporary coverage can protect more than revenue

The financial case for temporary dentist coverage extends beyond daily production.

Keeping an associate-dentist or specialty-provider schedule active can help you:

Preserve patient access and reduce appointment cancellations.
Protect treatment continuity for patients already in care.
Maintain staff productivity and morale.
Prevent patients from establishing care with a competitor.
Reduce burnout on the dentists and team members covering the gap.
Buy time to make a careful permanent hiring decision.

A rushed hire can create clinical, cultural, and operational risks. Leaving the chair empty creates financial risk. Temporary coverage through the right dental staffing solutions partner can give you a third option: keep the practice moving while you search for the right long-term dentist.

At Proxi Dental Staffing, we focus exclusively on dentistry. Our recruiters understand the workflows, credentials, schedules, and clinical expectations that shape dental practice staffing decisions.We provide dental staffing solutions for practices that need temporary coverage and permanent placement. Our team supports sourcing, screening, credentialing, and onboarding so you can move quickly without sacrificing fit or reliability.

If you are weighing whether to hold out for a permanent hire or protect production now, a locum tenens dentist may help you stabilize access, reduce team strain, and keep revenue moving.

Protect your production before an empty chair becomes a six-month problem.

Request dental staffing support from Proxi or explore available dentist opportunities. You can also learn more about our Dental-First approach or start a conversation through the Proxi Dental Staffing website.

Sources and further reading

Proxi Dental Staffing conference and trade-show materials (2026): source for the estimated figures cited in this article, including $40K–$80K in monthly revenue lost per unfilled associate-dentist role, $100K+ per unfilled specialty-provider role, and the illustrative annual estimate of $780,000 for one empty associate-dentist chair. These are conference estimates, not guaranteed or universal benchmarks.
ADA Locum Tenens and Dentistry : guidance for practices evaluating temporary dentist coverage.
A-dec Total Cost of Ownership : perspective on the relationship between equipment reliability, productivity, and total operating value.