Intraoral scanners are no longer limited to final impressions. When used during tooth preparation, they provide objective, real-time feedback that helps clinicians achieve more precise, predictable results and significantly reduce remakes.
Aident3D's AI-30 Intraoral Scanner delivers high-accuracy, true-color data that integrates smoothly with major analysis tools, making data-driven preparation practical in daily clinical work.
How to Use Intraoral Scanning During Preparation
Baseline Scan Before Preparation
Capture a high-quality scan of the natural dentition before any reduction. This becomes the reference model.
Intermediate / Post-Preparation Scan
After initial preparation, scan the prepared tooth and surrounding area.
Software Analysis
Minimum thickness / reduction map - Color-coded visualization shows whether each surface has sufficient clearance (typically 1.0–1.5 mm for full-contour zirconia or lithium disilicate crowns).
Undercut detection - Identifies undercuts relative to the planned insertion path.
Margin continuity - Checks whether the shoulder or chamfer is continuous and clearly defined.
Taper / convergence angle - Evaluates axial wall taper (ideal range usually 6–10 degrees).
Adjacent tooth damage - Detects accidental reduction of neighboring teeth.
Adjust According to Feedback
Continue reducing areas with insufficient thickness, eliminate undercuts, and refine unclear margins.
Final Confirmation Scan
Once the preparation meets all criteria, perform the definitive scan for the laboratory or chairside design.
Key Advantages
Moves preparation from "experience-based" to "data-driven," reducing the need for remakes.
Shortens the learning curve for less experienced clinicians by providing objective visual feedback.
Improves restoration fit and seating success rates.
Allows patients to see before-and-after comparisons, increasing understanding and acceptance of treatment.
Supporting Software Ecosystem
3Shape TRIOS includes dedicated preparation evaluation tools.
Medit offers comparison apps and thickness analysis.
CEREC enables a complete chairside preparation–design–milling loop.
Some platforms support real-time augmented-reality guidance during preparation.
Open-system scanners such as the Aident AI-30 export standard files that work with these analysis tools, giving clinics flexibility without being locked into a single ecosystem.
Important Considerations
Thickness analysis relies on accurate comparison between baseline and post-preparation scans - the baseline must be precise.
Gingival recession or cord placement can affect the comparison; always combine software data with clinical judgment.
Intraoral scan feedback is a powerful aid, but it does not replace the clinician's anatomical knowledge and tactile skill.
When high-accuracy scanning is combined with systematic preparation analysis, clinics achieve more consistent results, fewer adjustments, and higher patient satisfaction.
Ready to bring data-driven preparation into your daily workflow?
Explore the Aident AI-30 Intraoral Scanner - lightweight, powder-free, true-color, and fully compatible with major preparation analysis software. Visit https://www.aident3d.com/ or contact us today for a quote, demo, or sample workflow support.
