Development of adhesion system for one-step step bonding agent

2012 Fiscal Year Final Research Report

• Project/Area Number: 22592128
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Conservative dentistry
• Research Institution: Nihon University
• Principal Investigator: NISHIYAMA Norihiro 日本大学, 松戸歯学部, 教授 (90112953)
• Co-Investigator(Kenkyū-buntansha): FUJITA Kou 日本大学, 松戸歯学部, 助手 (00147737) ; AIDA Masahiro 日本大学, 松戸歯学部, 教授 (40147715) ; GOTO Haruhiko 日本大学, 松戸歯学部, 助手 (70307875) ; IKEMI Takuji 日本大学, 松戸歯学部, 教授 (80102565)
• Project Period (FY): 2010 – 2012
• Keywords: ワンステップボンディング材 / 酸性モノマーのカルシウム塩 / NMR

Research Abstract

To determine the amount of 10-methacryloyloxydecyl dihydrogen phosphate (MDP)-calcium (MDP-Ca) salt produced through demineralization of enamel or dentin by MDP, we designed a series of MDP-based one-step adhesives with different amounts of MDP. The null hypotheses were that (1) the amount of MDP-Ca salt produced through demineralization of enamel was the same as dentin, and (2) the amounts of MDP-Ca salt have no effect on the bonding performance. Increases in the amount of MDP resulted in the increased amount of MDP-Ca salt. The production amount of MDP-Ca salt of the dentin was 1.3 times higher than that of the enamel. The predominate species of the MDP and enamel reactants was a calcium hydrogen phosphate of MDP. In contrast, the dentin yielded both calcium phosphate and calcium hydrogen phosphate of MDP. Increases in the amount of MDP-Ca salt decreased both enamel and dentin bond strengths. An optimal concentration of MDP exists in one-step self-etch adhesive.

Research Products

• [Journal Article] Effect of calcium salt of functional monomer on bonding performance (2012)
  • Author(s): Hitoshi Iwai and Norihiro Nishiyama
  • Journal Title: Journal of Dental Research Volume: 91 Pages: 1043-1048
  • Peer Reviewed
• [Journal Article] Development of MDP-based one-step self-etch adhesive effect of additional 4-META on bonding performance (2012)
  • Author(s): Hitoshi Iwai, Kou Fujita, Hirotoshi Iwai, Takuji Ikemi, Haruhiko Goto, Masahiro Aida、Norihiro Nishiyama
  • Journal Title: Dental Material Journal Volume: 32(1) Pages: 1-9
  • Peer Reviewed
• [Journal Article] 4-META添加ワンステップボンディング材の開発 (2011)
  • Author(s): 西山典宏、岩井仁寿、藤田光、岩井啓寿、高橋治好、矢口剛宏、池見宅司
  • Journal Title: 歯科材料・器械 Volume: 30巻 Pages: 259-265
  • Peer Reviewed
• [Presentation] ワンステップボンディング材中のMDP濃度が歯質アパタイトの脱灰に及ぼす影響 (2012)
  • Author(s): 西山典宏、岩井仁寿、藤田(中島)光、内田僚一郎、谷本安浩、高橋治好、矢口剛宏、渋谷功、池見宅司
  • Organizer: 第60回日本歯科理工学会学術講演会
  • Place of Presentation: 九州大学医学部百年講堂、福岡
  • Year and Date: 2012-10-14
• [Presentation] Effect of Quantity of MDP Reacted on the Bonding Performance (2012)
  • Author(s): Norihiro Nishiyama, Hitoshi Iwai, Kou Fujita, Ryoichiro Uchida, Yasuhiro Tanimoto, Takuji Ikemi
  • Organizer: 第90回国際歯科会議
  • Place of Presentation: イグアス、ブラジル
  • Year and Date: 2012-06-21
• [Presentation] 新規ワンステップボンディング材の開発に関する研究(2) (2011)
  • Author(s): 岩井仁寿、藤田(中島)光、根本章吾、周秦、岩井啓寿、西山典宏、池見宅司
  • Organizer: 第135回日本歯科保存学会学術大会
  • Place of Presentation: 大阪国際交流センター、大阪
  • Year and Date: 2011-10-20
• [Presentation] Development of one-step bonding agent (2011)
  • Author(s): Norihiro Nishiyama, Hitoshi Iwai, Kou Fujita, Yasuhiro Tanimoto, Ryoichiro Uchida, Haruyoshi Takahashi, Yaguchi Takehiro, Masahiro Teshima, Takuji Ikemi
  • Organizer: International Dental Materials Congress 2011
  • Place of Presentation: ソウル、韓国
  • Year and Date: 2011-05-29
• [Presentation] 新規ワンステップボンディング材の開発に関する研究(1) (2010)
  • Author(s): 岩井仁寿、藤田(中島)光、根本章吾、岩井啓寿、西山典宏、池見宅司
  • Organizer: 第133回日本歯科保存学会学術大会
  • Place of Presentation: 長良川国際会議場、岐阜
  • Year and Date: 2010-10-29