Effects of a coating resin containing S-PRG filler to prevent demineralization of root surfaces

• MA Sai

  Department of Prosthodontics, School of Stomatology, Fourth Military Medical University Department of Biomaterials Science, Osaka University Graduate School of Dentistry

• IMAZATO Satoshi

  Department of Biomaterials Science, Osaka University Graduate School of Dentistry

• CHEN Ji-hua

  Department of Prosthodontics, School of Stomatology, Fourth Military Medical University

• MAYANAGI Gen

  Division of Oral Ecology and Biochemistry, Department of Oral Biology, Tohoku University Graduate School of Dentistry

• TAKAHASHI Nobuhiro

  Division of Oral Ecology and Biochemistry, Department of Oral Biology, Tohoku University Graduate School of Dentistry

• ISHIMOTO Takuya

  Department of Materials Science and Engineering, Osaka University Graduate School of Engineering

• NAKANO Takayoshi

  Department of Materials Science and Engineering, Osaka University Graduate School of Engineering

Abstract

The purpose of this study was to evaluate the ability of a coating material containing the surface pre-reacted glass-ionomer (S-PRG) filler to protect the root from demineralization in vitro. The proprietary coating resin containing the S-PRG filler (PRG Barrier Coat) was applied to human root dentin and immersed in acid buffer at pH 4.5 for 3 d. Demineralization was evaluated by micro-CT scanning and the dentin-material interface observed by scanning electron microscopy. The ability of the coating resin to modify acid production by Streptococcus mutans was investigated by monitoring pH using an ion-sensitive field-effect transistor pH electrode. Application of PRG Barrier Coat produced a coating layer with the thickness of approximately 200 µm and completely inhibited demineralization. The bacteria-induced pH fall at the material surface was significantly inhibited. We conclude that S-PRG fillercontaining coating resin may be an effective material for protecting exposed root from both chemical and biological challenges.

Journal

• Dental Materials Journal

  Dental Materials Journal 31 (6), 909-915, 2012

  The Japanese Society for Dental Materials and Devices

Keywords

• Resin coating
• Root caries
• Demineralization
• S-PRG

Details

• CRID: 1390282679693274752
• NII Article ID: 10031126068
• NII Book ID: AA10443149
• DOI: 10.4012/dmj.2012-061
• COI: 1:STN:280:DC%2BC3s7oslWqtQ%3D%3D
• ISSN: 18811361
• ISSN: 02874547
• PubMed: 23207194
• Web Site: https://www.jstage.jst.go.jp/article/dmj/31/6/31_2012-061/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2014042721
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • PubMed
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed