Evaluating point cloud density, surface topography, and accuracy across six extraoral scanners: A correlational and 3-dimensional (3D) comparative study

Key Points

• Accuracy varied significantly among the six extraoral scanners tested, influencing clinical applications.
• The maximum accuracy observed was 0.1 mm, indicating some scanners perform better than others.
• Observational analysis across six different extraoral scanners highlighted their varying point cloud density and surface topography.
• Findings may enable improved selection of scanners for dental imaging, though further validation is needed.