This article defines Dandy quality scanning standards for Night Guards, Aligners, and retainers.
What is a Quality Scan
- HD Scans
- The Bite
- Sufficient Scan Data
- Distortions and stitching errors
HD Scans
- When reviewing your scan before submission, please ensure that in the review step, the scans are being reviewed in HD. These are the scans the lab will use to create the restoration.
The Bite
A good bite is crucial to have an accurate appliance.
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
Sufficient Scan Data
Having sufficient scan data is crucial to achieving a good-fitting appliance and to avoiding any holds from the lab that may delay delivery.
What does a good scan vs. a bad scan need?
- Good: Palate and teeth are fully captured
- Good: 2-3mm of tissue is scanned past CEJ
- Bad: missing palate or missing scan areas on teeth
- Bad: missing the CEJ and 2-3mm or tissue past that
Distortions and Stitching Errors
Avoiding distortions and stitching errors is crucial to have a great-fitting appliance 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