A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SINTERED BODY AND ITS MANUFACTURING METHOD, DENTAL PROSTHETIC MATERIAL, AND DENTURE FOR ANTERIOR TEETH
To provide a sintered body that meets the translucency and mechanical strength requirements for dental prosthetic materials, especially dentures for anterior teeth.SOLUTION: A sintered body according to the present invention contains stabilized zirconia containing stabilizing elements as a matrix, the content of stabilizing elements is more than 4.0 mol% and 5.8 mol% or less, the average crystal grain size is 2.5 μm or less, the grain size difference is 0.10 μm or less, the tetragonal prime phase ratio is 70% or more, the light transmittance is over 45%, and the biaxial bending strength is 650 MPa or more.SELECTED DRAWING: None
【課題】歯科補綴材、特に前歯用義歯として要求される透光性及び機械的強度を満たす焼結体を提供すること。【解決手段】安定化元素を含む安定化ジルコニアをマトリックスとして含み、該安定化元素の含有量が４．０ｍｏｌ％を超え５．８ｍｏｌ％以下であり、平均結晶粒径が２．５μｍ以下であり、結晶粒径差が０．１０μｍ以下であり、なおかつ、正方晶プライム相率が７０％以上であり、光透過率が４５％超であり、二軸曲げ強度が６５０ＭＰａ以上であること、を特徴とする焼結体を提供する。【選択図】なし
SINTERED BODY AND ITS MANUFACTURING METHOD, DENTAL PROSTHETIC MATERIAL, AND DENTURE FOR ANTERIOR TEETH
To provide a sintered body that meets the translucency and mechanical strength requirements for dental prosthetic materials, especially dentures for anterior teeth.SOLUTION: A sintered body according to the present invention contains stabilized zirconia containing stabilizing elements as a matrix, the content of stabilizing elements is more than 4.0 mol% and 5.8 mol% or less, the average crystal grain size is 2.5 μm or less, the grain size difference is 0.10 μm or less, the tetragonal prime phase ratio is 70% or more, the light transmittance is over 45%, and the biaxial bending strength is 650 MPa or more.SELECTED DRAWING: None
【課題】歯科補綴材、特に前歯用義歯として要求される透光性及び機械的強度を満たす焼結体を提供すること。【解決手段】安定化元素を含む安定化ジルコニアをマトリックスとして含み、該安定化元素の含有量が４．０ｍｏｌ％を超え５．８ｍｏｌ％以下であり、平均結晶粒径が２．５μｍ以下であり、結晶粒径差が０．１０μｍ以下であり、なおかつ、正方晶プライム相率が７０％以上であり、光透過率が４５％超であり、二軸曲げ強度が６５０ＭＰａ以上であること、を特徴とする焼結体を提供する。【選択図】なし
SINTERED BODY AND ITS MANUFACTURING METHOD, DENTAL PROSTHETIC MATERIAL, AND DENTURE FOR ANTERIOR TEETH
焼結体及びその製造方法、歯科補綴材、並びに前歯用義歯
AZECHI SHO (author) / HIGUCHI YUYA (author) / FUJISAKI HIROYUKI (author) / NAGAYAMA HITOSHI (author) / KAWAMURA KIYOTAKA (author)
2024-11-15
Patent
Electronic Resource
Japanese
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