Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SANDBLASTING SURFACE TREATMENT METHOD TO PREVENT SUBSURFACE DAMAGE OF THREE TYPES OF DENTAL ZIRCONIA AND INDUCE COMPRESSIVE STRESS THROUGH PHASE CHANGE
Provided is a surface treatment method for dental zirconia, which includes sandblasting the surfaces of three types of dental zirconia (3Y-TZP, 4Y-PSZ and 5Y-PSZ) with alumina particles, and when sandblasting conditions are optimized for each type of zirconia, the microstructure destruction of a subsurface layer may be minimized and compressive stress may be reinforced by a phase change, thereby improving mechanical properties, and the penetration of resin cement through microcracks inhibits crack propagation and thus is advantageous in increasing bonding efficiency of dental zirconia. In addition, a dental article including dental zirconia made by the surface treatment method for zirconia, and clinically suitable sandblasting protocols are provided.
SANDBLASTING SURFACE TREATMENT METHOD TO PREVENT SUBSURFACE DAMAGE OF THREE TYPES OF DENTAL ZIRCONIA AND INDUCE COMPRESSIVE STRESS THROUGH PHASE CHANGE
Provided is a surface treatment method for dental zirconia, which includes sandblasting the surfaces of three types of dental zirconia (3Y-TZP, 4Y-PSZ and 5Y-PSZ) with alumina particles, and when sandblasting conditions are optimized for each type of zirconia, the microstructure destruction of a subsurface layer may be minimized and compressive stress may be reinforced by a phase change, thereby improving mechanical properties, and the penetration of resin cement through microcracks inhibits crack propagation and thus is advantageous in increasing bonding efficiency of dental zirconia. In addition, a dental article including dental zirconia made by the surface treatment method for zirconia, and clinically suitable sandblasting protocols are provided.
SANDBLASTING SURFACE TREATMENT METHOD TO PREVENT SUBSURFACE DAMAGE OF THREE TYPES OF DENTAL ZIRCONIA AND INDUCE COMPRESSIVE STRESS THROUGH PHASE CHANGE
KIM HEE-KYUNG (Autor:in)
01.06.2023
Patent
Elektronische Ressource
Englisch
| Europäisches Patentamt | 2023
Effect of Grinding, Sandblasting and Heat Treatment on the Phase Transformation of Zirconia Surface
| British Library Online Contents | 2007
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Surface treatment method of dental zirconia materials
| Europäisches Patentamt | 2021
| British Library Online Contents | 2007