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- 1. CAD/CAM Systems in Dentistry DT: Amer Alkrad ALHarkan dental clinics
- 2. What is CADCAM Systems • CAD: Computer Aided Designing. • 3Shap, Exocad , AutoCad……. • CAM: Computer Aided Manufacturing . • Subtractive : CNC Machines. • Additive : 3D printing.
- 3. Laboratory workflow Impression Model fabricating scanning CAD CAM Finishing build up
- 8. CAM (subtractive): CNC Machines • Milling , carving the blocks. • Fast , high precision. • Too much wastes. • Depending on Burs and sharp cutters Hard to mill the small fissures . • Need to maintain and replace the cutters frequently.
- 9. CAM(Additive) 3D Printing Techniques photopolymerization Extrusion paste tech jetting Layering possessing technique melting sliding
- 11. photopolymerization Stereo Lithography SLA Vector Scan UV LASER Digital Light Processing DLP-CDLP Digital projector Tow Photons Polymerization 2PP Photons
- 12. Stereo Lithography SLA • Charles Hill 1986 • High precision, Slow, Small projects. • High risk duo to UV • Input : Resin Liquid >>> Output: plastic • Point by point processing • Dental , Bio laboratory .
- 13. Digital Light Processing DLP • Faster than SLA • Slides Processing • CDLP (Carbon 3D) using .
- 15. Tow Photons Polymerization 2PP • 100 NANO Technology • Extra precise technology • BIO manufacturing • Femto second
- 16. Material extrusion Syringe Based modeling Fused Deposition Modeling
- 17. FDM • Easy to use. • Low costs. • Slow. • Low accuracy . • Plastic, Nylon , composites, wax. • Small objects
- 18. Syringe based modeling • easy to use. • Low costs . • Economic solution. • Sweets , Buildings.
- 19. Material Jetting UV cured Drop on demand Nano Particle jetting
- 20. Polymer Jetting UV Cured • Polymer jetting. • Multi materials printing. • Good quality • maxillofacial
- 21. Bed powder fusion Bender Jetting Technology Selective Laser melting SLM Selective Laser Sintering SLS Electron Beam melting EBM
- 22. Selective Laser Sintering Selective Laser Melting • Laser welding • Highly recommended and best choice for dental lab’s • Expensive.
- 24. Electron Beam Melting EBM • Bones ,joints • very expansive • High quality ,accuracy. • Titanium , Cobalt Chromium .
- 25. EBM
- 26. After Manufacturing • Coloring (zirconia , PLA , ABS ..). • Blasting . • Finishing. • Dipping in sealer liquid. • Sintering. • Hardening. • Smoothing and polishing.
- 27. 3D printers vs CNC • Slow. • Extreme accuracy (Nanos). • Higher cost machines. • limited range of materials . • Small and easy to use and maintenance. • Approximately zero wastes . • Fast • High accuracy (microns ). • Lower than 3D printers. • Wide range materials . • Big , heavy , hard to use and maintenance. • Huge amount of waste.
- 28. In Dentistry 3D printers • Models • Trays , Plates • Metal RPD’s • Metal Crown and bridge • Maxillofacial • splints CNC • Lithium silicate ceramics ( glass ceramic) • Zirconia C&B. • Peek Restorations. • Limited dentures • Metal C&B.
- 29. Should we care ? • Knowledge is free !!! • 3D printers prices go down Rapidly. • Technology is going a head .
- 30. “Once a new technology rolls over you, if you're not part of the steamroller, you're part of the road.” Stewart Brand Thanks for attention