A new removable denture workflow has been incorporated, enhancing the scanning process for edentulous cases. The edentulous scanning mode facilitates seamless data collection for such cases. Additionally, multiple bite recording methods are available, including natural teeth, bite rims, and old dentures, ensuring comprehensive occlusion data collection. Leveraging powerful AI assistance and flexible data collection methods, the scan process is streamlined and optimized for efficiency.
How to scan edentulous jaws?
STEP 1: Create an order
Input all necessary patient information. Select “removable dentures” as the dentistry type.
Select the tooth for dentures. Here, we select the full denture and full arches.
Select the bite recording ways. The software provided 3 types of recording, including natural teeth, bite rims and old dentures. Each type possesses different workflows, which will be introduced below. Click the “scan” button to start scanning.
Tips:
Natural teeth: Users can collect the bite data by scanning the remaining natural teeth of patients, and the workflow is similar to that of normal orders.
Bite rims: Bite rims can physically record the bite of patients. Users can collect the bite data by scanning the bite rims.
Old dentures: Users can collect the bite data by scanning existing dentures of patients.
STEP 2: Scan strategies for edentulous jaws
Click the “intraoral” and “edentulous scanning mode” buttons by order.
After preheating the scanner tip, scan the edentulous maxilla.
Maxilla:
1. Start the scanning process from the rugae area, circling around it completely to ensure thorough coverage.
2. Proceed from the midline and scan along the center of the residual ridge towards the tuberosity area on one side.
3. Turn to the buccal side, scanning the buccal aspect of the ridge towards the tuberosity area on the opposing side while ensuring data acquisition of the vestibule and frenum.
4. Continue scanning from the tuberosity area and move along the center of the residual ridge towards the midline.
5. Return to the rugae area and complete the scan of the palate with smooth movements from side to side.
Then, finish scanning and scan the edentulous mandible.
Mandible:
1. Begin the scanning process from the retromolar area. Proceed along the center of the residual ridge towards the midline. Slowly wiggle the scanner when scanning the central area. Then, continue moving towards the retromolar area on the opposing side.
2. Continue scanning, moving along the lingual aspect of the ridge backward to the midline, and finally to the retromolar area on the other side.
3. Turn to the buccal side and proceed along the residual ridge towards the retromolar area of the opposing side.
STEP 3-1: Scan strategies for natural teeth
The bite scanning process is similar to that of normal orders.
STEP 3-2: Scan strategies for bite rims
1. Start the scanning process from the rugae area, circling around it, then proceed along the center of the residual ridge towards the tuberosity area on one side.
2. Return to the midline and scan along the center of the residual ridge towards the tuberosity area on the other side.
3. Scan the palate with smooth movements from side to side. Then, turn to the buccal surface of the bite rim and scan from the tuberosity area to the retromolar area of the lower jaw bite rim.
4. Slowly rotate towards the intaglio surface and go along the residual ridge, scanning the inside of the denture along a zigzag path. Then, scan the buccal surface of the wax rim from the retromolar area to the tuberosity area of the upper bite rim.
5. Scan the buccal surface of the bite rim along the middle line from the upper to the lower bite rim.
STEP 3-3: Scan strategies for old dentures
Scan the maxillary denture firstly:
1. Start scanning from the tuberosity area, moving along the occlusal surface of the teeth towards the tuberosity area on the other side. Wiggle across the incisal edges of the incisors when scanning the central area. Turn to the palatal side behind the last molar to scan along it until you reach the last molar of the opposing side. Then, turn to the buccal side and scan along the buccal aspects of the denture.
2. Slowly rotate towards the intaglio surface and proceed along the center of the residual ridge towards the tuberosity area of the opposite side.
3. Move to the rugae area, circling around it.
4. Finally, complete the scan of the palate with smooth movements from side to side.
Scan the mandibular denture:
1. Start scanning from the retromolar area, moving along the occlusal surface of the teeth towards the retromolar area on the other side. Wiggle across the incisal edges of the incisors when scanning the central area. Then proceed along the lingual side until you reach the last molar. Turn to the buccal side and go along it until you reach the last molar on the other side.
2. Slowly rotate towards the intaglio surface and go along the residual ridge, scanning the inside of the denture.
STEP 4: Automatically align data
After scanning the bite rims or old dentures, the software will automatically align the bite data with the jaws data. Besides, the software also empowers users to align data manually after a failure of alignment. Just pick 3 points from each model and click the “confirm” button to get aligned.
The aligned data can be seamlessly sent to the lab or imported to EXOCAD without repetitive manual alignment.