Changes in elastic modulus of adhesive and adhesive-infiltrated dentin during storage in water

DOI Web Site 3 Citations 17 References
  • Yasuda Genta
    Department of Operative Dentistry, Nihon University School of Dentistry
  • Inage Hirohiko
    Department of Operative Dentistry, Nihon University School of Dentistry
  • Kawamoto Ryo
    Department of Operative Dentistry, Nihon University School of Dentistry
  • Shimamura Yutaka
    Department of Operative Dentistry, Nihon University School of Dentistry
  • Takubo Chikako
    Department of Operative Dentistry, Nihon University School of Dentistry
  • Tamura Yukie
    Department of Operative Dentistry, Nihon University School of Dentistry
  • Koga Kensaku
    Department of Operative Dentistry, Nihon University School of Dentistry
  • Miyazaki Masashi
    Department of Operative Dentistry, Nihon University School of Dentistry Division of Biomaterials Science, Dental Research Center, Nihon University School of Dentistry

Search this article

Abstract

The purpose of this study was to determine the elastic modulus of components at the resin-dentin interface with the use of an ultrasound device. Dentin slabs were obtained from freshly extracted bovine incisors shaped into a rectangular form. After demineralization, the dentin specimens were immersed in adhesives and polymerized. Adhesives were also polymerized and trimmed into the same shape as the dentin slabs. The specimens were then immersed in distilled water at 37°C for up to one year. The ultrasound equipment employed in this study was a Pulser-Receiver, transducers and an oscilloscope. By measuring the longitudinal and shear wave sound velocities, the elastic modulus was determined. When the elastic modulus of adhesive resin-infiltrated demineralized dentin was compared with that of adhesives, slightly but significantly lower values were found for adhesives used in a self-etching primer system. On the other hand, a higher elastic modulus was observed for resin-infiltrated dentin than for an adhesive used in an etch and rinse system. The elastic modulus of the resin-infiltrated dentin prepared with the etch and rinse system was affected by long-term storage in distilled water. (J. Oral Sci. 50, 481-486, 2008)

Journal

Citations (3)*help

See more

References(17)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top