1988 Volume 1 Issue 1 Pages 46-51
We studied cutting characteristics of ceramic implant materials. Three ceramic implant materials(Zirconia, Alumina, Hydroxyapatite), natural teeth,composite resin core and 12% Au-Pd-Ag alloy were used in this study. The Knoop hardness, characteristics of being cut concerning materials and clinical evaluation of characteristics of being cut were studied.
The following results were obtained.
1.In Knoop hardness, Alumina was the hardest of the materials and Zirconia, Hydroxyapatite,12% Au-Pd-Ag alloy and composite resin core followed.
2. In characteristics of being cut, Hydroxyapatite was better than others, and composite resin core,12% Au-Pd-Ag alloy, Zirconia and Alumina followed.
3.When we cut materials, we felt that Hydroxyapatite had the best characteristics for cutting and Alumina followed. Zirconia had the worst charactoristics.
