Computer aided design computer aided manufacture (cad-cam)
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A REVIEW TO CAD/CAM RESTORATIONS
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Computer aided design computer aided manufacture (cad-cam)
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- 2. Zainab Haji Roll # 12 Group B Batch # 18 Department of Prosthodontics. Fatima Jinnah Dental College & Hospital.
- 3. “Markets are changing across the board, and the dental industry is no exception. The catalyst for change in this industry have been the digital platforms that have been developed, working in concert with the economic situation we find ourselves in today” JOHNSON [1] 3
- 4. 1950s U.S Air Force 1971 Dr.Duret- Sopha System (crowns) 1985 Dr. Moermann- CEREC® system (inlay) 1980s Dr. Andersson- Procera® system (titanium copings and composite veneered restorations) This system later developed as a processing center networked with satellite digitizers around the world for the fabrication of all-ceramic frameworks. [2] 4
- 5. Inlays & onlays. Veneers. Coping. Substructures. Full coverage crowns. 5
- 6. Eliminates second visit No casting errors Accuracy of impression and restoration No layering errors Opportunity to view, adjust, rescan Cost effective No physical impression for the patient Cross infection control Saves time and labor No Temporization View occlusion digitally Esthetic 6
- 7. Initial equipment cost Capturing errors Color- customization 7
- 8. 8
- 9. Intra oral abutments impression Working model Wax up Casting Porcelain works CONVENTIONAL LAB WORK Final restoration [3] Luting to abutment 9
- 10. Surface of stone models is measured by tools, called digitizers and scanners, to obtain digital data that represents morphology of target tooth. Contact probe Laser beam with Position Sensing Device sensor Laser with CCD camera Intraoral digitizers 10
- 11. [4] 11
- 12. [5] 12
- 13. [6] 13
- 14. [7] 14
- 15. In office- scan, fabricate and seat within same appointment. CAD/CAM dental lab models- scan a stone ast of prepared tooth in lab. Produce coping and poreclain is then added. CAD/CAM for outsourcing- network machining centre 15
- 16. [8] 16
- 17. CEREC 123 DCS Precident Cercon Procera All Ceram 1994 Cicero 1999 LAVA 2002 Everest Katana iTero 17
- 18. [9 ] 18
- 19. 19
- 20. Porcelain Ceramic blocks available as Zirconia (fully sintered and partially sintered), ZirconiumOxide Lithium disilicate glass blocks Glass infiltrated alumina Glass infiltrated alumina with partially stabilized Zirconia Densely sintered high- purity Alumina Yttria-stabilized tetragonal Zirconia polycrystal material 20
- 21. 21
- 22. Subtractive manufacturing- power driven machine tools as lathes, milling machines, drill press. Additive manufacturing- series of cross sectional slices layered on top of one another. 22
- 24. Ref: Pract Proced Aesthet Dent 2006;18(3):A-F 200603PPAD_3980_Klim.qxd 24
- 25. 25
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- 27. 27
- 28. [1] Johnosn P. As the World Turns. The changing global marketplace is revolutionizing the way dental laboratories do business. Inside Dent Technol 2010;1(2), http://www.dentalaegis.com/idt/2010/12/as-the-world-turns [2, 4, 5,6,] Dental Materials Journal 2009; 28(1): 44－56 [3] Australian Dental Journal 2011; 56:(1 Suppl): 97–106 doi: 10.1111/j.1834-7819.2010.01300.x [8,10] Innovation in Dentistry:CAD/CAM Restorative Procedures. A Peer-Reviewed Publication, Written by James Klim, DDS, FAGD, FADFE and Edward B. Corrales [7,9] CAD/CAM and Digital Impressions,Written by Paul Feuerstein, DMD and Sameer Puri, DDS Few Images from google 28