This article defines Dandy quality scanning standards for Dentures
What Makes a Quality Scan
- Selecting the Correct Workflow
- Sufficient Scan Data
- The Bite
- Distortions and Stitching Errors
Selecting the Correct Workflow
Selecting the correct workflow is crucial to ensure you get exactly what is needed and no delays from the lab asking for clarification.
- Before you begin scanning, select the correct workflow.
- If the patient has an existing denture they would like copied, make sure to select the patient would like a copy denture. You can always add notes if slight modifications are needed.
- If you want wax-rims sent, make sure you do not select that the patient has an existing denture. Selecting “no” to having an existing denture will trigger our wax-rim workflow.
- If the patient has existing teeth that will be extracted by the delivery of a denture, be sure to choose an immediate denture.
- If the denture will be implant-supported, be sure to choose over denture. This will prompt you to enter the implant information for this overdenture. It is very important that all implant information is entered correctly to ensure proper fit of the overdenture.
Sufficient Scan Data
Having sufficient scan data is crucial to achieving a good-fitting denture and to avoid any holds from the lab that may delay delivery.
What does a good scan vs. a bad scan need?
- Good: Capture all vestibules, tissue attachments, retromolar pad areas, palate and ridge.
- Good: The areas are fully scanned, with no guesswork about where landmarks may be.
- Bad: Missing crucial landmarks in scans and incomplete scans. This will result in a flag from the lab
- Bad: Missing scan data that allows better retention for the denture. Ant areas that help with retention need to be fully captured.
The bite
A good bite is crucial to having dentures that follow the same bite and having less occlusal adjustments at delivery.
What is a good vs. bad bite scan?
- Good: Properly aligned bite matches the patient's mouth
- Good: Properly aligned Bite shows accurate wear patterns
- Bad: Bite does not reflect the patient's mouth
- Bad: Bite scans show discrepancies on wear patterns
Distortions and Stitching Errors
Avoiding distortions and stitching errors is crucial to have a great-fitting denture and to avoid delays in production.
What is a usable vs. an unusable scan?
- Good: There are no distortions, holes, or stitching errors in these scans.
- Good: There are no areas of visible overlap or double images.
- Bad: Noticeable holes or distortions in the scans
- Bad: Clear double imaging on a scan step