It is important to scan the patient's maxilla, mandible, and occlusal correctly to get an accurate occlusal relationship. The occlusal alignment can be affected by the factors below.
- How well extraneous soft tissue is removed from scan data
- Whether irregular noise exists on the scan data surface
- The patient’s posture during the occlusal scan
- Patient’s bite strength
Refer to the videos and FAQ below for more information about the occlusal scan method.
❏ Scanning Precautions
- Remove unnecessary soft tissue from scan data.
Use the slider to turn the Smart Scan Filtering on when scanning to effectively scan with the soft tissue removed. The remaining soft tissue is automatically removed when scanning is paused. If the occlusion is still inaccurate, remove unnecessary soft tissue as shown below.
- Check if there are holes in the buccal/lingual side of the maxilla and mandible scan data.
- Check and remove irregular noise or saliva from the occlusal surface.
- Scan both sides if it’s an arch.
We recommend gathering scan data of approximately eight teeth even if the maxilla and mandible data are automatically aligned with the occlusal data.
- We strongly recommend scanning both sides without pause, as the jaw joint relationship and bite strength may differ each time they open and close their mouth.
- When scanning the occlusion, scan natural teeth that have not been prepped yet.
- If you have Pre-Op and prepped teeth scan data, use Pre-Op data for occlusal scans and occlusion alignment.
- Avoid taking long continuous scans of the occlusion. This may lead to inaccurate occlusal alignment.
Especially avoid taking long scans of just the anterior region.
- Scan thoroughly from different angles to gather data in between the teeth.
We recommend scanning from various angles because it helps acquire scan data from the interdental space and improve overall occlusal alignment.
❏ Occlusal Scan
1. From the distal, place the scanner tip near the center of the occlusion and begin scanning the occlusal.
- If the patient does not have enough posterior teeth, scan approximately six teeth near the cuspid area.
- Choose the occlusal area without any metal prostheses or missing teeth. The occlusal scan will be quicker and more accurate if the selected tooth area is clear and precise.
2. Start scanning using the rolling method. Gather scan data using fluid rolling motions until you scan three to four teeth per maxilla and mandible.
- When scanning for occlusal data on both sides, scan similar posterior areas.
3. Automatic alignment is performed when there is sufficient occlusal data.
4. When the initial occlusal alignment is finished, proceed to the “Complete” step. If you want to check the occlusal relationship before proceeding to “Complete,” perform optimization or occlusion analysis.