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Application of Fourier transform for analysis of surface topographic properties of dental zirconia

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Please use this identifier to cite or link to this item:https://doi.org/10.14943/doctoral.k11257
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Title: Application of Fourier transform for analysis of surface topographic properties of dental zirconia
Other Titles: 歯科用ジルコニアの表面性状解析へのフーリエ変換の応用
Authors: 垂水, 良悦 Browse this author
Keywords: dental zirconia
surface roughness
Fourier transform
shear bond strength
resin cement
Issue Date: 25-Mar-2014
Publisher: Hokkaido University
Abstract: The clinical application of dental zirconia has increased. Adhesion on dental zirconia is important in the usage such as the hybrid type abutment to adhesive to titanium cylinder. For the analysis of surface roughness to influence on various material properties [1], conventionally the value of depth directions such as the Ra has been widely used.However, the periodicity(wavelength) of roughness in the horizontal direction may also influence adhesive property. The Fourier transform that can perform frequency analysis was effective for the examination of a complicated roughness curve, composed of multiple waves. Shear bond strength test was conducted in the specimen with four kinds of surface roughness(control,low, high, low and high frequency element). Shear bond strength became strong(14MPa) in the specimen with a short wavelength (high frequency element), and weak (4~5MPa) for a long wavelength (low frequency element). The surface sensitive properties depend not only on the Ra but also on the wavelength. In this study the Fourier transform was effective for various characteristic examinations of surface properties such as the adhesive property and shear bond strength could be better understood by wavelength dependence.
Conffering University: 北海道大学
Degree Report Number: 甲第11257号
Degree Level: 博士
Degree Discipline: 歯学
Examination Committee Members: (主査) 教授 横山 敦郎, 教授 佐野 英彦, 准教授 赤坂 司, 名誉教授 亘理 文夫
Degree Affiliation: 歯学研究科(口腔医学専攻)
Type: theses (doctoral)
URI: http://hdl.handle.net/2115/56587
Appears in Collections:学位論文 (Theses) > 博士 (歯学)
課程博士 (Doctorate by way of Advanced Course) > 歯学院(Graduate School of Dental Medicine)

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