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2020 Fiscal Year Final Research Report

Colloidal Platinum Nanoparticles and Phospphorylated Pullulan improve the pulp capping capability of Mineral trioxide Aggregate

Research Project

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Project/Area Number 19K24110
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0907:Oral science and related fields
Research InstitutionHokkaido University

Principal Investigator

CHOWDHURY Abu Faem Mohammad Almas  北海道大学, 歯学研究院, 博士研究員 (00844440)

Project Period (FY) 2019-08-30 – 2021-03-31
KeywordsPulp capping / MTA / Inflammation / Mineralization / CPN
Outline of Final Research Achievements

Study 1 demonstrated that Colloidal Platinum Nanoparticles (CPN) showed favorable healing responses in Wister rat's dental pulp. CPN's healing responses were comparable to the current "gold standard" pulp capping material - Mineral trioxide aggregate (MTA). In Study 2, the confirmation of the presence of CD34 endothelial cells revealed vasculogenesis, while the presence of DMP1 revealed mineralized tissue induction - the hallmarks of healing. Our findings indicated the suitability of the MTA and Phosphorylated Pullulan (PPL) combination in pulpal healing after exposure.

Free Research Field

歯科保存学

Academic Significance and Societal Importance of the Research Achievements

今回の研究では、ウィスター系ラットを用いて確立された実験モデルを適用しました。これを用いて、新規材料に対する歯髄の反応について詳細に検討しました。今回の研究結果によると、PLとPtの双方が良好な歯髄反応をもたらしました。PLとPtをMTAの合材に用いると、覆髄材料の接着能力が向上し、殺菌特性が追加され、更なる細菌の侵入が防止される可能性があります。覆髄材にこの組み合わせを採用することで、より多くの虫歯や外傷で傷ついた歯を救うことができると考えられます。

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Published: 2022-01-27  

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