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Custom-made cast titanium implants produced with CAD/CAM for the reconstruction of cranium defects
E Heissler1, F S Fischer, S Bolouri
1The Berlin Craniofacial Center, Clinic for Maxillofacial and Plastic Surgery, Virchow-Hospital, Medical Faculty of the Humboldt-University Berlin, Germany. heissler@ukrv.de
International Journal of Oral and Maxillofacial Surgery
|November 6, 1998
Summary
This study introduces rapid prototyping for fine casting titanium skull implants, offering advantages over traditional milling. This advanced technique allows for complex, tapered implant designs previously impossible to manufacture.
Area of Science:
- Biomaterials Engineering
- Medical Device Manufacturing
- Craniofacial Surgery
Background:
- Titanium implants are used for skull defect reconstruction.
- Current methods often involve milling titanium blocks.
- Limitations exist in milling complex or tapered implant designs.
Purpose of the Study:
- To present an advanced rapid prototyping method for fine casting titanium skull implants.
- To highlight the advantages of casting over milling for implant production.
- To explore the feasibility of creating complex implant geometries.
Main Methods:
- Utilizing rapid prototyping for a fine casting process.
- Employing data from three-dimensional spiral computed tomography.
- Comparing casting techniques with traditional milling.
Main Results:
- The fine casting process enables the formation of very thinly tapered structures.
- Complex geometrical structures with smaller diameters can be achieved.
- Geometrical forms not feasible with milling can be produced.
Conclusions:
- Rapid prototyping via fine casting is a viable alternative to milling for titanium skull implants.
- This technique expands design possibilities for craniofacial reconstruction.
- Advanced manufacturing offers improved solutions for bony defect repair.