Open tresD DICOM viewerOpen the viewer
Feature · On iPad or phone

Your CBCT on an iPad or a phone

tresD DICOM also works in the browser of the iPad, the iPhone and Android tablets and phones. The only difference: there you cannot choose a whole folder, so the CBCT is opened from a ZIP. No app to install and the study never leaves the device.

Open my CBCT now

Free · nothing to install · your files never leave your computer

tresD DICOM with the 3D render and the axial, coronal and sagittal slices of a CBCT

Why a ZIP

A CBCT is hundreds of files inside a folder, and Safari or Chrome on phones and tablets only let you choose single files. With the study compressed into a .zip (or a .rar) it opens in one go, without unzipping it. If you choose files that are not the CBCT, the viewer detects it and shows you these same steps.

What changes compared with a computer

  • To avoid running out of memory, the volume is reduced when opened (up to 40 million voxels) and the 3D is drawn at 256 per axis. On a computer nothing changes.
  • Panels open with their side tabs and slices are scrolled with the slider on the right edge, without a wheel.
  • Shared cases (.tresdz) and saved sessions (.tresd) open the same way.
  • From the browser menu you can add tresD DICOM to the home screen and open it like an app.

On a Mac, the Mac guide explains how to open the whole folder.

How to do it

  1. Get the CBCT in a ZIP

    On an iPad or iPhone: in the Files app, find the CBCT folder (if it shows the cloud icon, tap it first so it downloads), touch and hold it and choose Compress. On Android: use the .zip you were sent or compress it on a computer first.

  2. Open tresD DICOM in the browser

    Go to tresddicom.com/app with Safari or Chrome. No sign-up and nothing to install.

  3. Choose the ZIP

    On the start screen, tap the «📦 ZIP / RAR» button and choose the .zip file.

  4. Scroll through the slices

    With the slider on the right edge of each slice. Panels open by tapping their side tabs.

Watch it on video

01Opening a CBCT▶ 1:0716Save, share and recover▶ 1:29

Common questions

Do I need to install an app?

No. It works in Safari and Chrome. If you like, add it to the home screen from the browser menu.

Why can’t I choose the folder on an iPad?

Because browsers on iPad, iPhone and Android only let you choose single files, not folders. That is why the CBCT is opened compressed in a ZIP.

Does it look the same as on a computer?

Almost: to fit in the device memory, the volume is reduced when opened and the 3D is somewhat lighter. For the finest work, a computer is better.

Is the CBCT uploaded to the internet?

No. The ZIP is read and unzipped on the device itself.

Other features

Panoramic from the CBCTThe panoramic taken from the CBCT itself, with an editable curve and tooth-by-tooth slices.Airway in the CBCTVolume, minimum area and heat map of the pharyngeal airway, with the Guijarro norm.TMJ in the CBCTSlices of each condyle every 1 mm, perpendicular to its axis, and guided joint spaces.Superimposition of two CBCTsCompare the initial and final CBCT without placing landmarks: colour map in millimetres and arrows.Cephalogram from the CBCTLateral and frontal cephalograms projected from the CBCT at 1:1 scale, with the skull oriented on Frankfurt.Intraoral scan on the CBCTSTL, PLY or OBJ placed automatically on the CBCT teeth, with their outline on the slices.From DICOM to STLThe bone, skin and airway of the CBCT segmented in seconds and downloaded as STL.Palatal suture, transverse and vertebraeThe midpalatal suture, a slice through the first molars and the cervical vertebrae, each in its own view.

Try it with your CBCT

Free, no sign-up and nothing to install. Your files never leave your computer.

Open my CBCT now