Effect of kinematic viscosity on the staining performance of caries detector dyes

DOI Web Site PubMed 参考文献17件 オープンアクセス
  • KOBAYASHI Mikihiro
    Department of Conservative Dentistry, Division of Aesthetic Dentistry and Clinical Cariology, Showa University School of Dentistry
  • INAGAKI Rina
    Department of Conservative Dentistry, Division of Aesthetic Dentistry and Clinical Cariology, Showa University School of Dentistry
  • ICHIKAWA Kotona
    Department of Conservative Dentistry, Division of Aesthetic Dentistry and Clinical Cariology, Showa University School of Dentistry
  • NIIZUMA Yuiko
    Department of Conservative Dentistry, Division of Aesthetic Dentistry and Clinical Cariology, Showa University School of Dentistry
  • MORISAKI Hirobumi
    Department of Oral Microbiology and Immunology, Showa University School of Dentistry
  • KUWATA Hirotaka
    Department of Oral Microbiology and Immunology, Showa University School of Dentistry
  • MANABE Atsufumi
    Department of Conservative Dentistry, Division of Aesthetic Dentistry and Clinical Cariology, Showa University School of Dentistry
  • MIYAZAKI Takashi
    Department of Conservative Dentistry, Division of Oral Biomaterials and Technology, Showa University School of Dentistry

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<p>The relationship between performance of caries detector dyes and solvent molecular weight has been reported, but viscosity has not yet been investigated. Therefore, using extracted human teeth, we compared 6 experimental caries detector dyes with different viscosities to clarify the relationship between dye viscosity and staining performance in sclerotic dentin. Carious dentin started showing dentin staining when stained with caries detector dyes with kinematic viscosity≥263 mm2/s, showed no immunoreactivity for Streptococcus mutans on immunohistochemistry, and contained dentinal tubules free of debris on scanning electron microscopy. Samples stained using a caries detector dye with kinematic viscosity of 332 mm2/s contained calcification product-like debris in the dentinal tubules. These findings suggest that the caries detector dye has a threshold kinematic viscosity between 263 and 332 mm2/s at which sclerotic dentin and tissues beyond are not stained. The caries detector dye appears to control tooth dyeability based on solvent viscosity.</p>

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