Analysis of polymerization contraction behavior of resin composite using micro X-ray CT image, and that clinical countermeasure

• Project/Area Number: 25462950
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Conservative dentistry
• Research Institution: Tokyo Medical and Dental University
• Principal Investigator: YOSHIKAWA Takako 東京医科歯科大学, 医歯(薬)学総合研究科, 助教 (00182733)
• Co-Investigator(Kenkyū-buntansha): SADR Alireza 東京医科歯科大学, 大学院医歯学総合研究科, 非常勤講師 (20567755)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: Micro-CT / 環境SEM / 色素浸透法 / コンポジットレジン / 重合収縮 / Slow-start curing法 / 窩壁適合性 / コントラスト比 / 光重合型コンポジットレジン / 重合 / Micro-focus X 線CT / 光照射法

Outline of Final Research Achievements

This research aimed to evaluate polymerization contraction behavior of resin composites and composite adaptation to the cavity wall using micro-focus X-ray CT, environmental SEM and dye penetration test. The light-cured resin composite, which exhibited increased contrast ratios during polymerization, decrease polymerization contraction volume, and improve resin composite adaptation to the cavity wall using the slow-start curing method.

Research Products

• [Journal Article] Environmental SEM and dye penetration observation on resin-tooth interface using different light curing method (2016)
  • Author(s): Takako YOSHIKAWA, Makoto MORIGAMI, Alireza SADR, Junji TAGAMI
  • Journal Title: Dental Materials Journal Volume: 35 Issue: 1 Pages: 89-96
  • DOI: 10.4012/dmj.2015-196
  • NAID: 130005122448
  • ISSN: 0287-4547, 1881-1361
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Environmental observation of enamel crack and resin–tooth cavity gap formation (2015)
  • Author(s): Takako YOSHIKAWA, Makoto MORIGAMI, Alireza SADR, Junji TAGAMI
  • Journal Title: Asian Pacific Journal of Dentistry Volume: 15 Pages: 13-19
  • NAID: 40020570184
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Effects of light curing method and resin composite composition on composite adaptation to the cavity wall (2014)
  • Author(s): Takako YOSHIKAWA, Makoto MORIGAMI, Alireza SADR, Junji TAGAMI
  • Journal Title: Dental Materials Journal Volume: 33 Issue: 4 Pages: 499-503
  • DOI: 10.4012/dmj.2013-360
  • NAID: 130004679320
  • ISSN: 0287-4547, 1881-1361
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Effects of light curing method and resin composite composition to the enamel and dentin cavity wall (2014)
  • Author(s): Takako YOSHIKAWA, Makoto MORIGAMI, Alireza SADR, Junji TAGAMI
  • Journal Title: Asian Pacific Journal of Dentistry Volume: 14 Pages: 13-18
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Effects of light-curing method and resin composite composition on composite adaptation to the cavity wall (2014)
  • Author(s): Takako YOSHIKAWA, Makoto MORIGAMI, Alireza SADR, Junji TAGAMI
  • Journal Title: Dental Materials Journal Volume: 33
  • NAID: 130004679320
  • Peer Reviewed
• [Journal Article] Slow-start curing法による窩底部レジン重合促進効果 (2013)
  • Author(s): 吉川孝子, 森上 誠, 趙 永哲, 田上順次
  • Journal Title: 日本歯科保存学雑誌 Volume: 56 Pages: 208-214
  • NAID: 110009674430
  • Peer Reviewed
• [Journal Article] Acceleration of curing of resin composite at the bottom surface using slowstart curing methods (2013)
  • Author(s): Takako YOSHIKAWA, Makoto MORIGAMI, Alireza SADR, Junji TAGAMI
  • Journal Title: Dental Materials Journal Volume: 32 Pages: 999-1004
  • NAID: 10031203559
  • Peer Reviewed
• [Journal Article] 大臼歯咬合面窩洞の残存歯質厚さとレジン接着性の影響 (2013)
  • Author(s): 吉川孝子、SADR Alireza、田上順次
  • Journal Title: 日本歯科保存学雑誌 Volume: 57 Pages: 67-72
  • NAID: 130003398842
  • Peer Reviewed
• [Presentation] 光重合型レジン修復物の窩壁適合性への光照射法とレジンタイプの影響 (2016)
  • Author(s): 吉川孝子、SADR Alireza、田上順次
  • Organizer: 第144回 日本歯科保存学会春季学術大会
  • Place of Presentation: 栃木県総合文化センター(栃木県宇都宮市)
  • Year and Date: 2016-06-09
• [Presentation] Effects of Light-Curing Method and Bonding on Different-Type Composite / Wall Adaptation (2015)
  • Author(s): T. Yoshikawa, M. Morigami, A. Sadr.
  • Organizer: Academy Dental Matrials
  • Place of Presentation: Maui, Hawaii, USA
  • Year and Date: 2015-10-07
  • Int'l Joint Research
• [Presentation] Effects of Light-Curing Method and Resin Composite Composition on Composite/Wall-Adaptation (2015)
  • Author(s): T. Yoshikawa, M Morigami, A Sadr
  • Organizer: IADR
  • Place of Presentation: Boton, USA
  • Year and Date: 2015-03-11 – 2015-03-14
• [Presentation] 光重合型コンポジットレジンの窩底部重合促進効果 (2013)
  • Author(s): 吉川孝子、趙永哲、田上順次
  • Organizer: 日本歯科保存学会
  • Place of Presentation: 福岡