Complex Internal Geometries, Simplified.
Modern US dentistry is rapidly shifting towards minimally invasive procedures. However, designing conservative restorations is technically more challenging than full crowns due to their complex internal geometries. China Dental Design offers an elite Dental Inlay Onlay CAD Design service that guarantees a flawless, passive fit without compromising clinical retention. Stop struggling with tight internal line angles and let our digital experts handle the heavy lifting.
Technical CAD Engineering Specifications
We leverage advanced Exocad and 3Shape algorithms to analyze the preparation geometry, ensuring your in-house milling machine can perfectly execute our Dental Inlay Onlay CAD Design without post-mill manual adjustments:
Fit Optimization & Seating
- Insertion Path Analysis: We digitally determine the single distinct path of insertion to ensure the restoration drops in effortlessly.
- Undercut Block-out: Automatic and manual digital block-out of severe internal undercuts to prevent binding, while keeping the enamel margin hermetically sealed.
- Cement Gap: Customized spacing (e.g., 50µm – 80µm) tailored specifically for modern resin cements used in conservative dentistry.
Advanced Milling Strategy
- Drill Radius Compensation: The key to a perfect inlay. We digitally round internal line angles so your 1.0mm or 0.6mm milling burs can reach all areas, completely preventing the restoration from “rocking” on the die.
- Anatomy & Thickness: Natural occlusal anatomy that respects the opposing dentition without dipping below the minimum thickness required for E.max or Zirconia.
Advanced Clinical Applications
Our CAD files are highly versatile and engineered for various conservative indications:
- Inlay CAD: Precise Class I or II restorations confined inside the cusps.
- Onlay CAD: Covering one or more cusps to prevent tooth fracture.
- Overlay / Table-top: Raising the Vertical Dimension of Occlusion (VDO) without aggressively prepping the tooth, ideal for severe erosive wear cases.
Seamless Overnight Digital Workflow
- Secure Upload: Upload Intraoral Scans via our 100% HIPAA-compliant portal. (Note: Ensure preps have smooth internal angles for best milling results).
- Prescribe: Specify the exact material (e.g., IPS e.max CAD, 3M Lava Ultimate, or Zirconia) and your milling bur size.
- Expert Design: We execute the design overnight natively in Exocad/3Shape.
- Download & Mill: Download the STL file the next morning and send it directly to your wet or dry CAM software.
Try a Complex “Table-Top” Case
Have a complex full-mouth wear case requiring multiple overlays? Let our master designers engineer the VDO increase for you.
Send your trial case securely to our CAD team:
direct@chinadentaldesign.net

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