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2019 Fiscal Year Annual Research Report

Determination of Ions Having Remineralization Effect and Its Utilize for Adhesive Systems

Research Project

Project/Area Number 17K11716
Research InstitutionNihon University

Principal Investigator

宮崎 真至  日本大学, 歯学部, 教授 (70239391)

Project Period (FY) 2017-04-01 – 2020-03-31
Keywords再石灰化 / イオン / 光干渉断層画像法(OCT) / 超音波測定法
Outline of Annual Research Achievements

歯質の再石灰化に有効なイオンとしてSi Ca P ZN Mg Sr Cu Bなどが挙げられ,それぞれ検討が加えられている。これらのイオンの中で,とくにSi,SrおよびZnイオンに着目し,その中でも石灰化を促進する能力が高いイオンの特定を行った。その結果,Zrイオンの効果が高いことが判明した。すなわち,金属イオンは,抗菌性や歯質の再石灰化促進効果を示すとともに,コラゲナーゼの活性阻害能を有しており,硬組織疾患の予防に効果があることが報告されており,これらイオン含有コーティング材を用いてその再石灰化能について検討した。
まず,歯質接着のターゲットとしてウシ象牙質を選択した。このウシ象牙質を切り出し,各種イオン含有の試作コーティング材を塗布して再石灰化促進,脱灰抑制効果について光干渉断層画像法(OCT)を用いて経時的に観察するとともに,信号強度分布から最大ピーク強度値および 1/e2幅を求めることによって検討した。
その結果,OCT 像は,実験期間の経過に伴って,非コート群では表層のシグナル輝度に変化は認められないものの,内部断層像にわずかな変化が認められた。一方,コート群では表層のシグナルの輝度の低下とともにシグナルの幅が広くなるものの,内部断層像に変化は認められなかった。また,最大ピーク強度値および 1/e2幅は,実験期間の経過に伴って,非コート群では有意な変化は認められなかった。一方,コート群では最大ピーク強度値は有意な低下を,1/e2幅は有意な増加を認めた。
以上のように,本実験の結果から各種イオン含有コーティング材は,象牙質表面を被覆することで,象牙質の脱灰抑制効果を有することから,非侵襲的な根面齲蝕の予防に応用可能であることが示唆された。

  • Research Products

    (20 results)

All 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (19 results) (of which Int'l Joint Research: 16 results,  Peer Reviewed: 18 results,  Open Access: 13 results)

  • [Int'l Joint Research] Chreigton University(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      Chreigton University
  • [Journal Article] Enamel etching for universal adhesives: Examination of enamel etching protocols for optimization of bonding effectiveness2020

    • Author(s)
      Wong J, Tsujimoto A, Fischer NG, Baruth AG, Barkmeier WW, Johnson EA, Samuel SM, Takamizawa T, Latta MA, Miyazaki M
    • Journal Title

      Oper Dent

      Volume: 45 Pages: 80-91

    • DOI

      10.2341/18-275-L

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effects of composition on the hardness of orthodontic adhesives2020

    • Author(s)
      Namura Y, Takamizawa T, Uchida Y, Inaba M, Noma D, Takemoto T, Miyazaki M, Motoyoshi M
    • Journal Title

      J Oral Sci

      Volume: 62 Pages: 48-51

    • DOI

      10.2334/josnusd.19-0035

    • Peer Reviewed / Open Access
  • [Journal Article] Influence of application time on dentin bond performance in different etching modes of universal adhesives2020

    • Author(s)
      Saito T, Takamizawa T, Ishii R, Tsujimoto A, Hirokane E, Barkmeier WW, Latta MA, Miyazaki M
    • Journal Title

      Oper Dent

      Volume: 45 Pages: 196-208

    • DOI

      10.2341/19-028-L

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The effects of aluminablasting on bond durability between universal adhesives and tooth substrate2020

    • Author(s)
      Ouchi H, Takamizawa T, Tsubota K, Tsujimoto A, Imai A, Barkmeier WW, Latta MA, Miyazaki M
    • Journal Title

      Oper Dent

      Volume: 45 Pages: 196-208

    • DOI

      10.2341/19-028-L

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of finishing and polishing methods on the surface roughness and surface free energy of bulk-fill resin composites2020

    • Author(s)
      Ishii R, Takamizawa T, Tsujimoto A, Suzuki S, Imai A, Barkmeier WW, Latta MA, Miyazaki M
    • Journal Title

      Oper Dent

      Volume: 45 Pages: e91-e104

    • DOI

      10.2341/18-246-L

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Interrelation among the handling, mechanical, and wear properties of the newly developed flowable resin composites2019

    • Author(s)
      Imai A, Takamizawa T, Sugimura R, Tsujimoto A, Ishii R, Kawazu M, Saito T, Miyazaki M
    • Journal Title

      J Mech Behav Biomed Mater

      Volume: 89 Pages: 72-80

    • DOI

      10.1016/j.jmbbm.2018.09.019

    • Peer Reviewed
  • [Journal Article] Effect of reduced universal adhesive application time on enamel bond fatigue and surface morphology2019

    • Author(s)
      Nagura Y, Tsujimoto A, Fischer NG, Baruth AG, Barkmeier WW, Takamizawa T, Latta MA, Miyazaki M
    • Journal Title

      Oper Dent

      Volume: 44 Pages: 42-53

    • DOI

      10.2341/17-261-L

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effect of active application on bond durability of universal adhesives2019

    • Author(s)
      Moritake N, Takamizawa T, Ishii R, Tsujimoto A, Barkmeier WW, Latta MA, Miyazaki M
    • Journal Title

      Oper Dent

      Volume: 44 Pages: 188-199

    • DOI

      10.2341/17-384-L

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Influence of surface wetness on bonding effectiveness of universal adhesives in etch-and-rinse mode2019

    • Author(s)
      Tsujimoto A, Shimatani Y, Nojiri K, Barkmieier WW, Markham MD, Takamizawa T, Latta MA, Miyazaki M
    • Journal Title

      Eur J Oral Sci

      Volume: 127 Pages: 162-169

    • DOI

      10.1111/eos.12596

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Surface moisture influence on etch-and-rinse universal adhesive bonding2019

    • Author(s)
      Sugimura R, Tsujimoto A, Hosoya Y, Fischer NG, Barkmeier WW, Takamizawa T, Latta MA, Miyazaki M
    • Journal Title

      Am J Dent

      Volume: 32 Pages: 33-38

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Laboratory evaluation of dentin tubule occlusion after use of dentifrice containing stannous fluoride2019

    • Author(s)
      Takamizawa T, Tsujimoto A, Ishii R, Ujiie M, Kawazu M, Hidari T, Suzuki T, Miyazaki M
    • Journal Title

      J Oral Sci

      Volume: 61 Pages: 276-283

    • DOI

      J Oral Sci 61, 276-283

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 3D printed coping for intraoral evaluation: a clinical report2019

    • Author(s)
      Jurado CA, Tsujimoto A, Tanaka K, Watanabe H, Fischer NG, Barkmeier WW, Takamizawa T, Latta MA, Miyazaki M
    • Journal Title

      Quintessence Int

      Volume: 50 Pages: 534-538

    • DOI

      10.3290/j.qi.a42655

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Immediate enamel bond strengths of universal adhesives to unground and ground surfaces in different etching modes2019

    • Author(s)
      Takeda M, Takamizawa T, Imai A, Suzuki T, Tsujimoto A, Barlmeier WW, Latta MA, Miyazaki M
    • Journal Title

      Eur J Oral Sci

      Volume: 127 Pages: 351-360

    • DOI

      10.1111/eos.12626

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Reconsideration of enamel etching protocols for universal adhesives: Effect of etching method and etching time2019

    • Author(s)
      Shimatani Y, Tsujimoto A, Nojiri K, Shiratsuchi K, Takamizawa T, Barkmeier WW, Latta M, Miyazaki M
    • Journal Title

      J Adhes Dent

      Volume: 21 Pages: 345-354

    • DOI

      10.3290/j.jad.a42933

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Wear resistance of indirect composite resins used for provisional restorations supported by implants2019

    • Author(s)
      Tsujimoto A, Jurado C, Villalobos-Tinoco J, Barkmeier W, Fischer N, Takamizawa T, Latta M, Miyazaki M
    • Journal Title

      J Adv Prosthodont

      Volume: 11 Pages: 232-238

    • DOI

      10.4047/jap.2019.11.4.232

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Influence of different curing modes on flexural properties, fracture toughness, and wear behavior of dual-cure provisional resin-based composites2019

    • Author(s)
      Akiba S, Takamizawa T, Tsujimoto A, Moritake N, Ishii R, Barkmeier WW, Latta MA, Miyazaki M
    • Journal Title

      Dent Mater J

      Volume: 38 Pages: 728-737

    • DOI

      10.4012/dmj.2018-300

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Etch-and-rinse vs self-etch mode for dentin bonding effectiveness of universal adhesives. J Oral Sci 61, 549-5532019

    • Author(s)
      Yamauchi K, Tsujimoto A, Jurado CA, Shimatani Y, Nagura Y, Takamizawa T, Barkmeier WW, Latta MA, Miyazaki M
    • Journal Title

      J Oral Sci

      Volume: 61 Pages: 549-553

    • DOI

      10.4012/dmj.2018-300

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] SEM observation of novel characteristic of the dentin bond interfaces of universal adhesives2019

    • Author(s)
      Takamizawa T, Imai A, Hirokane E, Tsujimoto A, Barkmeier WW, Erickson RL, Latta MA, Miyazaki M
    • Journal Title

      Dent Mater

      Volume: 35 Pages: 1791-1804

    • DOI

      10.1016/j.dental.2019.10.006

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Inhibition of acid erosion of the enamel by self-assembling peptides2019

    • Author(s)
      Suda S, Kurokawa H, Suzuki S, Suzuki M, Mizuhara K, Tsujimoto A, Takamizawa T, Miyazaki M
    • Journal Title

      Oper Dent

      Volume: 43 Pages: E166-E172

    • DOI

      10.2341/17-175-L

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Published: 2021-01-27  

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