ANSWERS

What is mirror imaging in CAD design?

Mirror imaging in dental CAD is the technique of copying the geometry of a contralateral tooth, scanned from the patient's opposing arch side, and reflecting it across the midline to design the restoration. The technician uses the patient's own anatomy as the template, which preserves natural occlusal contacts, embr...

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Why it works this way

How mirror imaging works in the digital workflow

When a single anterior or premolar restoration is needed, the CAD technician imports the full-arch intraoral scan into the design software (exocad, 3Shape, or DentalCAD). The contralateral tooth, the same tooth on the opposite side of the midline, is isolated, copied, and reflected across the dental midline. The mirrored geometry is then positioned over the prep, adjusted for the actual prep margin, and refined for occlusion against the opposing arch scan.

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Does mirror imaging work for posterior restorations?

Yes, and it's actually more forgiving than anterior work. Posterior mirroring captures the patient's specific cusp height, fossa depth, and marginal ridge pattern, which makes the occlusal adjustment chairside much shorter. The Dani CAD team mirrors contralateral molars and premolars by default for single-unit crowns when the opposing tooth is intact. The esthetic stakes are lower than anterior, but the functional fit is noticeably better than a library tooth scaled to the prep dimensions.

Can you mirror a tooth from an old scan or study model?

Yes. If the contralateral is currently restored or worn but the patient has a pre-treatment scan, an older study model, or even a diagnostic wax-up, Dani Dental can import that geometry and mirror from it. Send the legacy file with the case prescription. This is especially useful for patients getting matched anterior crowns years after the original restoration, where you want the new crown to match the documented original anatomy rather than the current worn state.

How long does mirror-image CAD design add to turnaround?

Nothing meaningful. Mirroring is a standard step inside the same design session, not a separate workflow. A single-unit anterior crown using contralateral mirroring ships on Dani Dental's standard turnaround window for that restoration type. The time investment sits inside the technician's design hour, not the production schedule. If the case requires a wax-up review with the referring dentist before milling, that adds whatever time the dentist needs to respond, not lab time.

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