Intraoral Scanner (Digital Impressions)

An intraoral scanner is a compact optical camera connected to a computer, designed to record the exact shape of the teeth and surrounding tissues in three dimensions. Traditionally, to make a crown or aligner, a dentist took a physical impression by having the patient bite into a tray filled with a soft material that set into a mould. The scanner replaces this with a digital process: as the camera passes over the teeth, software stitches thousands of images together into a highly accurate virtual model on the screen. That model becomes the foundation of the digital dental workflow, often described as CAD/CAM, where restorations are designed on the computer and manufactured precisely.

During the appointment the dentist or assistant moves the slim scanner wand slowly over the surfaces of the teeth and gums, much like taking a video. As it moves, the device captures the shape in real time and builds a colour, three-dimensional model on the screen that both you and the dentist can see immediately. If any area is missed or unclear, that spot can simply be rescanned, without starting over. The completed digital file is then sent to design software, where crowns, bridges, veneers, implant parts or aligners are planned to fit exactly. The scan itself is painless and contactless beyond the gentle touch of the wand, with no trays, no putty and nothing to swallow.

Intraoral scanning is used wherever an accurate impression of the teeth is needed. This includes prosthetic work such as crowns, bridges and veneers, restorations placed on dental implants, and orthodontic treatment with clear aligners, where the digital model is used to plan tooth movement and produce the aligner series. It also supports treatment planning, record-keeping and showing patients their own teeth on screen. It is especially welcome for people who struggle with conventional impressions because of a strong gag reflex or discomfort with the trays. Because it is quick and non-invasive, it suits a wide range of patients, and the dentist confirms the right treatment plan based on a full examination.

The main benefits are accuracy, comfort and speed. The digital model is highly precise, which helps restorations and aligners fit well and can reduce the need for adjustments or repeat impressions. There is no unpleasant tray or setting material, so the experience is more comfortable and the common gag reflex is much less of a problem. Scans are fast and can be reviewed instantly on screen, and the digital file is easy to store and share with the laboratory. For you, the visit usually feels quicker and cleaner than traditional moulds. The scan is just one step in your care, and your dentist explains the overall plan, timing and any follow-up appointments.