Title: The development of zirconia abutments and evaluation of the fitness of abutment-implant interface
Abstract: Objiective To develope a new method of manufacturing zirconia abutments and assess the fitness of abutment-implant interface. Methods The zirconia abutments were made from nano zirconia powder by cold isostatic pressing and two-step sintering. Fifteen zirconia abutments were chosen and fixed to 0sstem USⅡ System implants,then the microgaps at abutment-implant interface were measured by scanning electron microscope. Results No difficulties were encountered in manufacturing zirconia abutments . The average width of the marginal microgaps was(3.17±0.34)microns;the width of internal microgaps at the abutment-implant interface was(28.4±2.7)microns. Conclusion The abutments made from nano zirconia powder using cold isostatic pressing and two-step sintering have good fitness with implants.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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