Avoiding Remakes.
Individual remakes feel like bad luck. Looked at across twenty cases they resolve into a small number of causes, most of which are fixable and most of which sit upstream of the laboratory.
Categorize before you diagnose
A remake is not a single phenomenon. Restorations come back for fit, for contacts and occlusion, for shade, for contour and emergence, and for fracture — and those five categories have almost entirely different causes.
Recording which category each remake falls into, and nothing more, is enough to make patterns visible within a handful of cases. Most practices do not do this, which is why remakes continue to feel random.
The value is in the distribution rather than the individual case. Five fit remakes in twenty cases points somewhere very specific; five remakes spread across five categories points somewhere else entirely.
Fit remakes trace to records
A restoration that will not seat almost always reflects something about the record rather than the fabrication. The recurring causes are an undercut that was not identified, a margin that could not be read and was interpreted, an impression distorted on removal, or a preparation refined after the record was taken.
The last of those is worth singling out because it is entirely invisible afterwards. A preparation adjusted after the impression — a contact opened, an edge rounded — produces a restoration made to a tooth that no longer exists, and no inspection of the returned case will reveal why.
If fit is your dominant remake category, the answer is upstream: a two-minute check of the preparation before recording, and a discipline of retaking the record if anything is altered afterwards.
Shade remakes trace to conditions
Very few shade remakes are ceramic errors. They are overwhelmingly about the circumstances in which the shade was taken and transmitted.
Shade taken late in an appointment on dehydrated teeth. Shade taken under warm operatory lighting. Shade recorded without naming the guide. Shade communicated as a code with no photograph. Preparation shade not recorded on a translucent material.
If shade is your dominant category, the fix is a protocol rather than a different laboratory: shade first in the appointment, colour-corrected light, guide named, photographs with the tab in frame, preparation shade recorded. For the genuinely demanding anterior case, patients can attend the laboratory for colour matching by appointment, which removes the transmission problem altogether.
Fracture remakes trace to clearance and material
A restoration that fractures within weeks or months was almost certainly too thin, loaded off-axis, or made in a material that did not suit the functional picture.
Clearance is the usual culprit, and it is usually a clearance problem that was accepted rather than measured. The second most common is material chosen at treatment planning and not revisited after the preparation turned out differently.
Where fractures cluster on one tooth position or one restoration type, that is nearly always a reduction pattern rather than a material fault.
Contour and emergence remakes trace to communication
These are the cases where the restoration fits, functions and matches, and is still wrong — too full, too flat, an emergence the tissue rejects, an incisal form the patient dislikes.
The cause is almost always that the intent never travelled with the case. The technician built to a reasonable interpretation because no other information was available.
The defences are photographs, a recorded provisional where one exists, and a sentence describing what the restoration is meant to achieve. Anterior cases without any of those three are being designed on inference.
Keep a log
A single line per remake: date, tooth, category, and one sentence on what was wrong. Not a formal system — a page in a notebook or a shared spreadsheet is enough.
Within fifteen or twenty cases the pattern is usually obvious, and it is frequently not what anyone at the practice would have guessed. A practice convinced its laboratory has a fit problem often discovers its own preparation checking is the variable; a practice blaming its own technique sometimes finds the issue is a single restoration type.
You cannot fix a pattern you have not measured.
The remakes nobody records
Formal remakes — cases returned to the laboratory — are only part of the picture. The larger and less visible category is restorations that were made to work at the chair through substantial adjustment.
A crown ground heavily to seat, a contact opened and rebuilt in composite, an occlusal surface reduced until the interference disappeared: each of these is a case that failed and was rescued rather than a case that succeeded. They consume chair time and they compromise the restoration, but they never appear in anyone's remake figures.
If you are trying to understand where a practice's difficulty sits, count these alongside the formal remakes. The pattern they reveal is usually the same, and it is usually larger than expected.
Have the conversation
Once the pattern is visible, discuss it with the laboratory directly and specifically. Not that things have been going wrong lately, but that six of the last twenty cases needed occlusal adjustment on the same cusp, or that contacts have been consistently tight on posterior units.
That is a solvable problem. A laboratory can adjust how it builds contacts, how it interprets the bite record, or how it finishes occlusal surfaces for your practice specifically — but only if it knows what is happening at your chair.
In short
- Record only the category of each remake — patterns appear within twenty cases
- Fit remakes point upstream to records and to preparations altered after recording
- Shade remakes are almost always about conditions, not ceramic work
- Fractures cluster where clearance was accepted rather than measured
- Bring the pattern to the laboratory specifically, not as a general complaint
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.