Key factors and clinical suggestions to avoidcommon errors in intraoral scanning of edentulous arches
Introduction
Theintraoral scanning of the entire arch in edentulous patientsremains one of the most complex procedures in digital dentistry. Despite technological advancements, clinicians often face issues such as soft tissue movement, lack of stable reference points, and image stitching errors.
Improving scan accuracy involves not only the scanner but also controlling the clinical environment and the scanning process.
Why full arch scans fail
There are three main reasons why full arch scans are often inaccurate:
1. Instability of soft tissues
In the absence of teeth, soft tissues move easily, making it difficult to consistently capture data and stitch images acquired by the scanner.
2. Shape changes related to tissue movement
Tissues near edentulous arches move easily; this instability quickly alters the shape captured by the scanner, leading to image stitching errors.
3. Saliva and reflections
Moisture can interfere with optical scanning, reducing accuracy. The same applies to inadequate lighting conditions.
Key factors to improve accuracy
1. Stabilize soft tissues
Controlling soft tissues is essential to reduce distortion during scanning.
2. Create consistent and validated scanning paths
Astructured scanning protocolreduces image stitching errors.
3. Improve visibility
Proper retraction and adequate exposure of the surgical field significantly improve scan quality.
Clinical tip: control is more important than speed
Many doctors focus on scanning speed, but speed without control often leads to errors and the need to redo exams.
Acontrolled workflowensures:
* greater accuracy
* fewer remakes
* more predictable results
The role of retraction in digital workflows
One of the most underrated factors in intraoral scanning is the management of soft tissues.
Theuse of a dedicated retraction systemallows for:
* stable exposure of the surgical field
* a reduction in tissue interference
* better scanner tracking
👉 This directly translates to greater accuracy and fewer remakes.
Improve your scanning workflow
If you wantto reduce errors and improve the predictability of full arch scanning, the integration of an appropriate retraction system into your workflow can make a significant difference.
👉 Discover theLo Russo Retractors® system: optimize your digital workflowwith greater control, visibility, and precision.
Conclusion
Intraoral scanning of the entire arch is not just a technical procedure, but a controlled clinical process.
By focusing on tissue management, visibility, and workflow consistency, clinicians can significantly improve accuracy and outcomes.