[PDF][PDF] Reliability and strength of all-ceramic dental restorations fabricated by direct ceramic machining (DCM)

F Filser, P Kocher, F Weibel, H Luthy… - International journal …, 2001 - researchgate.net
F Filser, P Kocher, F Weibel, H Luthy, P Scharer, LJ Gauckler
International journal of computerized dentistry, 2001researchgate.net
All-ceramic dental bridges for the molar region are not yet available at reasonable costs. The
novel direct ceramic machining (DCM) process allows an easy, reliable and rapid fabrication
for all-ceramic dental restorations with high mechanical strength and good biocompatibility.
In DCM, an enlarged framework is easily milled out of a pre-fabricated porous ceramic blank
made ofzirconia. After sintering to full density, no further time-consuming hard machining
with diamond tools is needed. For individual esthetical requirements, the framework is …
Abstract
All-ceramic dental bridges for the molar region are not yet available at reasonable costs. The novel direct ceramic machining (DCM) process allows an easy, reliable and rapid fabrication for all-ceramic dental restorations with high mechanical strength and good biocompatibility. In DCM, an enlarged framework is easily milled out of a pre-fabricated porous ceramic blank made ofzirconia. After sintering to full density, no further time-consuming hard machining with diamond tools is needed. For individual esthetical requirements, the framework is coated with a veneer porcelain. Compared to the commercially available In-Ceram Alumina and IPS Empress2 restorations, the mechanical strength of zirconia frameworks is twice as high, allowing the restorations to bear the high mastication forces in the molar region. In terms of reliability, zirconia bridges fabricated by the DCM process are also superior to In-Ceram Alumina and IPS Empress2.
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