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2013 Fiscal Year Final Research Report

Creation of functional interface on dentin by powder jet deposition

Research Project

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Project/Area Number 23592793
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Conservative dentistry
Research InstitutionTohoku University

Principal Investigator

NOJI Miyoko  東北大学, 歯学研究科(研究院), 大学院非常勤講師 (70431583)

Co-Investigator(Kenkyū-buntansha) SASAKI Keiichi  東北大学, 歯学研究科(研究院), 教授 (30178644)
AKATSUKA Ryo  東北大学, 歯学研究科(研究院), 助教 (10586514)
Co-Investigator(Renkei-kenkyūsha) SUZUKI Osamu  東北大学, 歯学研究科(研究院), 教授 (60374948)
KURIYAGAWA Tsunemoto  東北大学, 工学研究科(研究院), 教授 (90170092)
Project Period (FY) 2011 – 2013
Keywordsパウダージェットデポジション / ハイドロキシアパタイト / 前臨床試験
Research Abstract

A powder jet deposition (PJD) process can be used to create a thick hydroxyapatite (HA) film on the surface of a human tooth. In the experiment using dentin, class V cavities were prepared on the buccal surfaces of the teeth of beagle dogs and filled with (1) resin composite on the HA film, (2) zinc oxide-eugenol cement as a negative control group, or (3) zinc phosphate cement as a positive control group. In the experiment using enamel, the enamel was polished and coated with (1) the HA films, (2) resin sealants as one negative control group, and (3) glass ionomer cement as the other negative control group. No severe inflammatory responses were observed in all specimens applied by PJD, showing even milder response than that of specimens used as negative control. The bacteria were not identified in the pulp space or dentinal tubules in any postoperative periods.

  • Research Products

    (5 results)

All 2013 2012 2011

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (3 results)

  • [Journal Article] Evaluation of thermal stress in hydroxyapatite film fabricated by powder jet deposition2013

    • Author(s)
      Akatsuka R, Matsumura K, Noji M, Kuriyagawa T, Sasaki K
    • Journal Title

      Eur J Oral Sci

      Volume: 121(5) Pages: 504-7

    • DOI

      10.1111/eos.12076

    • Peer Reviewed
  • [Journal Article] Effect of hydroxyapatite film formed by powder jet deposition on dentin permeability2012

    • Author(s)
      Akatsuka R, Ishihata H, Noji M, Matsumura K, Kuriyagawa T, Sasaki K
    • Journal Title

      Eur J Oral Sci

      Volume: 120(6) Pages: 558-62

    • DOI

      10.1111/j.1600-0722.2012.01003

    • Peer Reviewed
  • [Presentation] HA粉体の高速噴射(パウダージェットデポジション)によるHA厚膜形成の歯科臨床応用に関する研究2012

    • Author(s)
      赤塚亮,松村賢,野地美代子,厨川常元,佐々木啓一
    • Organizer
      第22日本歯科医学会総会
    • Place of Presentation
      大阪
    • Year and Date
      20121109-11
  • [Presentation] Evaluation of Hydroxyapatite Film by Powder Jet Deposition after Artificial Aging2012

    • Author(s)
      Akatsuka R, Matsumura K, Noji M, Nishikawa C, Sato K, Hagiwara T, Anada T, Suzuki O, Kuriyagawa T, Sasaki K
    • Organizer
      BIOCERAMICS 24
    • Place of Presentation
      Fukuoka
    • Year and Date
      20121021-24
  • [Presentation] Effect of HAp Film Formed by Powder jet deposition on dentin permeability.2011

    • Author(s)
      Akatsuka R, Ishihata H, Noji M, Matsumura K, Anada T, Kuriyagawa T, Suzuki O, Sasaki K
    • Organizer
      14th meeting of the International College of Prosthodontists
    • Place of Presentation
      Hawaii, USA
    • Year and Date
      20110908-12

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Published: 2015-07-16  

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