Choosing a Dental Laboratory.
Choosing a laboratory is a clinical decision made on commercial-looking criteria. Price is visible and comparable; the things that actually determine your experience are neither.
Consistency is the property that matters
Any competent laboratory can produce an excellent restoration occasionally. What determines whether working with one is comfortable is whether the twentieth case is like the first.
Consistency is what lets you book a seat appointment with confidence, standardize your own delivery routine, and stop building adjustment time into every appointment. It is worth more than an occasional exceptional result, and it is harder to assess from a sample.
It is also why a trial of two or three cases tells you relatively little. Consistency reveals itself over a longer run and across a range of difficulty.
Trial across the range, not the easy end
The instinct when trialling a laboratory is to send straightforward cases, because the downside of a problem is smaller. That is exactly the wrong test.
Straightforward cases are handled competently almost everywhere. What distinguishes laboratories is what happens with a demanding anterior match, a case with a marginal preparation, an implant case with awkward angulation, or a case where something has gone wrong.
Send a spread. Include something genuinely difficult, and pay attention to how the difficulty is handled rather than only to the result.
Judge how problems are handled
The most informative moment is the first time something is not right, and it will happen with any laboratory.
What matters is whether the problem is acknowledged directly, whether the cause is investigated rather than assigned, whether the remedy is offered without argument, and whether anything changes afterwards. A laboratory that responds to a problem by asking what you observed at the chair is doing something different from one that simply remakes the case.
Equally telling is whether a laboratory ever raises problems with you. One that never queries anything is not necessarily producing flawless work — it may be making assumptions and absorbing the consequences, which shows up as inconsistency.
Access to technical judgement
Ask whether you can speak to someone who actually worked on your case, and how quickly. The value of a laboratory relationship sits substantially in the technical conversations — material selection on a borderline case, what a preparation will support, how to approach a difficult match.
A laboratory whose only accessible contact is administrative can still produce good work, but it cannot participate in your treatment planning. For straightforward restorative work that may be entirely adequate. For complex cases it is a real limitation.
It is a fair question to ask directly before committing.
Price against cost
Unit price is the easiest thing to compare and the least informative. The figure that matters is total cost per successfully seated restoration, which includes remakes, adjustment time, unscheduled appointments and the occasional patient who loses confidence.
A laboratory that is meaningfully cheaper per unit and produces even a modest additional rate of remakes is more expensive in practice, because chair time costs considerably more than the difference in laboratory fee.
This does not mean expensive is better — there is no reliable correlation. It means the comparison has to be made on the full cost rather than the invoice.
The practical and regulatory checks
Ask about documentation and traceability. Alloy identification certificates should be available for your records; disinfection before dispatch should be standard; materials used should be identifiable after the fact.
Ask what happens with digital cases — whether files are retained and for how long, and whether a restoration can be remade from an archived scan without re-appointing the patient.
Ask about collection and delivery arrangements, and about what happens when something needs to move quickly. These are unglamorous questions and they shape day-to-day experience more than most clinical ones.
What a laboratory should be asking you
Assessment runs both ways. A laboratory taking on a new practice should want to know what you restore, what materials you favour, how you prepare, what your case mix looks like and what has frustrated you about previous arrangements.
A laboratory that asks none of this is treating the relationship as order fulfilment. That may be all some practices want, and there is nothing wrong with it — but it will not produce the calibration that makes a relationship work over years.
The questions asked during an initial conversation are a reasonable proxy for how the relationship will run afterwards.
Capacity, continuity and scale
Ask practical questions about continuity. What happens when the technician who normally handles your work is away. Whether cases are handled by the same people consistently or allocated to whoever is free. How the laboratory manages a sudden increase in volume from you.
Larger laboratories generally offer more resilience and broader technical capability; smaller ones often offer more consistent personal contact. Neither is inherently better, and the right answer depends on what you value and on how complex your case mix is.
What matters is that you know which trade-off you are making, rather than discovering it when your usual technician is on leave.
Changing laboratory
If you do move, plan the transition rather than switching abruptly. Cases already in progress should finish where they started. Any case with a framework try-in or a staged sequence underway should not change hands mid-course.
Expect a calibration period. A new laboratory does not yet know how you prepare, how tight you like contacts, or how you assess occlusion, and the first several cases involve both sides learning. Feeding back deliberately during that period shortens it considerably.
And give it long enough to judge. The property you are assessing is consistency, and consistency cannot be measured over three cases.
In short
- Consistency across a long run matters more than an occasional excellent result
- Trial with difficult cases, not straightforward ones
- How a laboratory handles a problem is the most informative signal available
- Compare total cost per seated restoration, not unit price
- Plan a transition and expect a calibration period
More on practice efficiency
Discuss a case
Where a case sits between options, a short conversation before preparation is usually quicker than resolving it afterwards.