Information alert

If you need a large print, audio, braille, easy-read, age-friendly or translated copy of this page, email the patient information team at uclh.patientinformation@nhs.net. We will do our best to meet your needs.

What is an intra-oral scanner?

An intra-oral scanner is a device that captures detailed pictures to create a 3D image of your teeth, gums and oral structures. Unlike traditional dental impressions, this technology is more comfortable, accurate, and faster. 

Why is it used?

  • Designing dental restorations such as crowns, bridges, or veneers. 
  • Planning orthodontic treatments e.g. braces or clear aligners. 
  • Creating digital models for dental implants. 
  • Monitoring oral health over time with precise digital records. 

How does the scan work?

  1. Preparation: Your dentist will ensure your teeth are clean and dry. 
  2. Scanning: Scanner wand is placed inside your mouth and moved around to capture images of your teeth and gums. 
  3. 3D Imaging: These images are instantly converted into a 3D model on the dentist’s computer. 
  4. Review: You and your dentist can review the 3D model to discuss any treatment options. 

Is the procedure safe?

Intra-oral scanning is entirely safe and doesn’t involve radiation. The scanner simply takes digital images of your teeth and gums. 

Does it hurt?

No! 

Benefits

  • Comfort: No need for messy impressions or holding trays in your mouth. 
  • Accuracy: Digital impressions are extremely accurate, leading to better-fitting restorations. 
  • Speed: The scanning process is quick, usually completed within minutes. 
  • Convenience: Scan is shared instantly with laboratories. 
  • Better visualisation: The detailed 3D images allow your dentist to better plan and explain treatments. 
  • Better for the environment: Digital scans mean less clinical waste and physical dental impressions don’t need to be couriered to the lab. 

Intra-oral scanning | Digital impressions in dentistry

This video explores how intra-oral scanners are transforming dental care with precise, pain-free digital impressions. This innovative technology captures detailed 3D images of your teeth and gums, offering a comfortable alternative to traditional silicone impressions. Learn how it enhances patient communication, reduces clinical waste, and speeds up treatment times at UCLH.

Page last updated: 08 April 2025

Review due: 01 March 2027