Training guide · DEXIS IS 3800 and IS ScanFlow
Training guide · DEXIS IS 3800 and IS ScanFlow
Everything you need for a confident first scan: an animated walkthrough, five short lessons with DEXIS's own training videos, care instructions and quick fixes, all taken from the official user guides.
IS ScanFlow walks you through the same stages every time. The default Common Scan workflow covers most cases, and DEXIS recommends learning it before the specialist workflows.
Watch the whole Common Scan workflow in about a minute. Pause, step back, or click any step on the right to replay it.
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Patient biting down · scanner parallel to the cheek side
Molars and canines, on each side of the mouth
Happy with the scan? Choose a resolution, then refine.
Resolution ▾✓ Sent to your lab through IS Connect
This is a simplified illustration made by Dental Hygienics to guide you. The real IS ScanFlow screens look different and use icons for many of these buttons.
Preparing the scanner, opening IS ScanFlow and choosing your patient.
| What you do | What happens |
|---|---|
| Hold the power button for three seconds | Scanner powers on (or off). The indicator blinks orange while it shuts down. |
| Press the power button briefly while in the mouth | The scanner projects light and scanning starts. Press again to stop. |
| Press the mode button | Switches between Upper Jaw, Lower Jaw and Buccal Bite. The mode indicator on the scanner shows which one is active. |
| Use the buttons and tilt the handpiece (gesture control) | You can rotate and zoom the model, and move between steps, without touching the mouse. See "Using the Scanner with IS ScanFlow" in the user guide for the button presses. |
| Put the scanner in its holder, or leave it still for 5 seconds | It goes inactive. Pick it up and press the power button for one second to continue. |
| Leave it idle for more than an hour | It powers off. |
| Remove the tip | IS ScanFlow shows a No Tip icon. Refit the tip and press the power button for one second. |
One surface at a time, in the same order every time.
| You see | It means | What to do |
|---|---|---|
| Grey/blue areas | Shade information is still needed there (Shade Matching is on by default). | Keep scanning the area, or turn Shade Matching off if you don't need it. |
| Yellow | A gap that could cause the images to join badly. | Keep scanning until the yellow disappears. |
| Green patches | Holes in the image (shown when you are not in high-resolution mode). | Rescan if they are near the restoration area. Holes far from it matter less. |
| Green line with an arrow | A weak join between the buccal, lingual and occlusal surfaces, common on incisors. A Scan Warnings indicator also appears. | Scan in the direction of the arrows until they disappear. |
| Purple | Low mesh quality (with Mesh Quality Indication switched on). | If it covers a margin, rescan it from different angles. |
| Solid green area you selected | The area is locked. | Nothing. The scanner will not add data there. |
The bite registration links the two jaws together. DEXIS recommends taking it whenever you have scanned both arches.
The Check step processes the scan to its final accuracy and gives you the tools to inspect it before it leaves the practice.
| Check tool | Use it to |
|---|---|
| Colour / light toggles | Turn colour off to spot holes, or the light on for more 3D depth. |
| Margin line | Draw the margin automatically or by hand for the lab. |
| Undercut | Check the preparation for undercuts. Rotate the model to set the insertion axis. |
| Scan Check | Check occlusion and preparation clearance, and measure between points. |
| Parallelism Check | Compare the angle between up to six teeth. |
| Shade Matching | View tooth shade information or create a shade report. |
| Bite adjustment | Fine-tune how the arches meet. |
| Orientation adjustment | Straighten the model before export. |
| Quadrant Snapshot | Save standard views of the model for reports. |
Send the case through IS Connect, open it in other software, save it as a file, print it or share a report with the patient.
| Save format | Choose it when |
|---|---|
| PLY HD 3D | You want the most vivid colour detail. Some third-party software cannot open it. |
| PLY | You want colour with the widest compatibility. |
| STL | The lab or printer asks for STL (no colour). |
| OBJ HD 3D | OBJ with colour texture. |
| OBJ | OBJ in a single colour. |
In the Save tab you can also tick Zip all the exported files. Click Export to save and keep working, or Export and Exit.
Once Common Scan feels natural, these build on it. You can switch workflow before or during a scan.
| Workflow | What it is for | Official video |
|---|---|---|
| Common Scan | The default: upper jaw, lower jaw and bite, full or partial arch. Also used for orthodontic scans (include several millimetres of gingiva and the palate). | Scanning techniques ↗ |
| Preparation Scan | Scan before the prep, then rescan just the prepared tooth, or combine earlier scans. | Preparation Scan workflow ↗ |
| Implant Scan | A full or partial arch with an abutment or implant, including the scan body. | Triple scan implant workflow ↗ |
| SEAT Protocol | Guided implant protocol for horizontal scanbodies in full-arch and multi-unit cases. | SEAT Protocol ↗ |
| Full Arch Implant | Full-arch implant cases with straight or angulated implants. | Full arch implant workflow ↗ |
| Impression Scan | Scan a physical impression, useful for deep margins or heavy bleeding. | See the user guide, chapter 10 |
| Denture Scan | Edentulous ridges, occlusal rims and the denture itself. | See the user guide, chapter 11 |
| Extra Scan | Up to three additional scans of anything else, such as a bite block or appliance. | See the user guide, chapter 12 |
Short routines that protect patients, the scanner and your scan quality. The full cleaning, disinfection and sterilisation procedure is in DEXIS's IS 3800 Family Safety, Regulatory, and Technical Specifications User Guide, which you must follow.
Fixes from the DEXIS user guides. Tap a question to open it.
Intraoral scanning and IS ScanFlow videos from DEXIS's own how-to page. Filter by topic or search. Videos open on YouTube. Some show earlier software versions or the Imprevo scanner, so screens can differ slightly.
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DEXIS's own documentation. Always follow the current instructions for use.