Matching one crown to the teeth beside it: the hardest job

Why one tooth is harder than twenty

When we design a full smile, every unit is made to the same specification, so the eye has no reference to argue with. A single central incisor has a reference sitting beside it, and the brain compares the two within the first second of looking at your face. It is judging four things at once, brightness, colour saturation, translucency and surface texture, and a match that fails on any one of them reads as a false tooth even when the shape is perfect.

What a shade tab cannot record

Shade guides capture brightness and hue reasonably well and almost nothing else. Real teeth carry white enamel flecks, faint crack lines, a translucent halo at the biting edge and a horizontal ripple that catches light. These have to be recorded photographically, ideally with a cross-polarised filter that removes surface glare so the internal structure is visible to the technician. We also take the shade in the first minutes of the appointment, because teeth dehydrate and lighten measurably after fifteen minutes with the mouth held open.

The try-in that is not optional

A single anterior crown is tried in unglazed, with water rather than cement, in front of a window. If it is wrong it goes back to the laboratory the same day and is corrected while you are still in Istanbul, which is precisely why we schedule single front crowns early in a trip rather than on the last afternoon. Patients who accept the first attempt out of politeness are the ones who go home unhappy, so we ask directly and expect a direct answer.

When we recommend doing two teeth instead of one

If the neighbouring tooth is heavily filled, discoloured by an old root canal or already carrying a poor crown, matching a new crown to it means copying a compromised tooth. In those cases making both central incisors as a pair at 180 EUR each usually gives a better and more stable result. When the neighbour is intact and healthy we say so and do the single unit; we do not prepare a sound tooth to make our own job easier.

The Ones People Actually Ask.