The Foundation of Guided Surgery
A surgical guide is only as good as the data it is built on. The two critical inputs are CBCT (Cone Beam Computed Tomography) for bone and anatomical visualization, and IOS (Intraoral Scan) for soft tissue and dental arch accuracy. Merging these two datasets accurately is the foundation of precise guided surgery.
Data Merging Protocol
At MDC, we use fiducial markers and anatomical landmarks to align the CBCT and IOS datasets. The accuracy of this alignment directly determines the accuracy of the final implant position. Our protocol achieves alignment within 0.5mm tolerance.
Guide Design Considerations
1. Sleeve Height and Diameter — Optimized for the specific implant system and surgical kit being used. Sleeve height affects drill access and angulation control.
2. Guide Support Type — Tooth-supported guides offer maximum stability. Mucosa-supported guides are used for edentulous cases. Bone-supported guides are reserved for complex full arch cases with significant ridge defects.
3. Guide Extension — The guide must extend far enough to be stable but not so far that it impedes surgical access or flap reflection.
4. Irrigation Access — Drill sites need adequate irrigation access to prevent bone overheating during osteotomy.
Verification Before Design Finalization
We verify guide fit on a printed model before shipping. The guide is checked for seating accuracy, stability, and sleeve alignment. Any rocking or instability is addressed before the guide leaves our facility.
Our guides are exported in STL format, compatible with all major 3D printers and surgical kit systems.