Edentulous case

Scan Strategy Edentulous (22.3.8)

In general, edentulous cases are challenging to scan. Executing the following scan strategy, however, may ease the difficulty of edentulous cases.

❏ Smart scan filtering > No filtering.

• Soft tissue remains intact. This option is useful when scanning an edentulous case, dental model, or stone model.

❏ Make sure you don't miss any of the following:

• Maxilla: vestibule, frenum, maxillary tuberosity, and hamular notch
• Mandible: vestibule, frenum, retromolar pad, and alveololingual sulcus

❏ Scanning the maxilla

1. Start scan from the rugae area.

2. Build up the main data by scanning the alveolar ridge on both left and right.

3. Scan the buccal side including the vestibule and the frenum.

4. Scan the palate area. Start scan from the rugae area and continue to scan the whole posterior palate by shuttling the scanner tip between the left and the right alveolar ridges. 

• When the alignment is lost, resume the scan from the rugae area.
• If the alignment repeatedly fails on the same area, click Optimize for deleting noisy data and aligning the scan data, and then resume the scan.

❏ Scanning the mandible

1. Start scan from the retromolar pad.

2. Build up the main data by acquiring scan data along the alveolar ridge until reaching the opposite side of the retromolar pad.

3. Scan the buccal and the labial, including the vestibule and the frenum.

💡 Useful tips

• Maintain the proper distance between the scanner tip and the gingiva.
• When the alignment is lost, resume the scan from distinguishing shapes: incisive papilla, rugae area, retromolar pad, and alveolar ridge.
• Placing matching points on both sides of the anterior and posterior using flow resin or latex marker may help align the scan data.