If you are over thirty you probably remember the tray full of putty, four minutes of sitting still and the gag reflex. Digital impressions have replaced that step, and it is not only a matter of comfort.
How it works
An intraoral scanner is a small camera that projects structured light onto tooth surfaces and records their shape thousands of times per second. Software reassembles the frames into a three-dimensional model that appears on screen while we scan.
There is no radiation: it is pure optics, like a camera. The step takes a few minutes and can be paused and resumed whenever you need.
What changes for you
- Nothing setting in your mouth, so no gagging: the clearest benefit for anyone with a pronounced pharyngeal reflex or anxiety.
- You see the result immediately, magnified. Many people understand their own situation by looking at the 3D model more than by listening to an explanation.
- Nothing to redo because of a faulty impression: if an area did not capture well, we rescan just that spot in seconds.
Where it makes a clinical difference
The advantage is not only comfort. A digital model:
- can be archived and compared over time. We can superimpose two scans months apart and see whether gums have receded or a tooth has moved. That is objective data, not memory.
- removes distortion steps. Impression material and plaster have tolerances; a digital file does not shrink and does not break in transit.
- enables design. Orthodontic simulation, inlay and crown design and aligner trays all start from there.
When we still use a conventional impression
Honestly: digital has not replaced everything. In some specific clinical situations a conventional impression remains indicated, and in those cases we use it without hesitation. The tool is chosen for the case, not on principle.
What we ask of you
Only to keep your mouth open and relaxed, and to follow instructions on when to close so we can record your bite. If you get tired we pause: the file stays, we do not start over.
Sources
- Italian Ministry of Health — Dental health — national framework on prevention, diagnosis and dental care.
- FDI World Dental Federation — international reference on dental practice and technology.