【公開日：2024.07.25】【最終更新日：2024.06.12】

課題データ / Project Data

課題番号 / Project Issue Number

23CT0126

利用課題名 / Title

Biobased polymers for 3D printing Orthodotic appliances

利用した実施機関 / Support Institute

公立千歳科学技術大学 / Chitose IST

機関外・機関内の利用 / External or Internal Use

外部利用/External Use

技術領域 / Technology Area

【横断技術領域 / Cross-Technology Area】（主 / Main）計測・分析/Advanced Characterization（副 / Sub）物質・材料合成プロセス/Molecule & Material Synthesis

【重要技術領域 / Important Technology Area】（主 / Main）次世代バイオマテリアル/Next-generation biomaterials（副 / Sub）マテリアルの高度循環のための技術/Advanced materials recycling technologies

キーワード / Keywords

biobased polymers, 3D printers, Orthodontics, ,走査プローブ顕微鏡/ Scanning probe microscope,核磁気共鳴/ Nuclear magnetic resonance,X線回折/ X-ray diffraction,核磁気共鳴/ Nuclear magnetic resonance,バイオアダプティブ材料/ Bioadaptive materials,生分解性材料/ Biodegradable material,易循環型材料設計技術/ Recycling-friendly material design technology

利用者と利用形態 / User and Support Type

利用者名（課題申請者）/ User Name (Project Applicant)

スニガ　エレディア エンリケ　エズラ

所属名 / Affiliation

北海道医療大学大学院歯学研究科

共同利用者氏名 / Names of Collaborators in Other Institutes Than Hub and Spoke Institutes

ARIM実施機関支援担当者 / Names of Collaborators in The Hub and Spoke Institutes

利用形態 / Support Type

（主 / Main）機器利用/Equipment Utilization（副 / Sub）,技術代行/Technology Substitution

利用した主な設備 / Equipment Used in This Project

CT-011：電界放出形走査電子顕微鏡（FE-SEM）
CT-005：核磁気共鳴装置（NMR）
CT-002：フーリエ変換赤外分光光度計（FTIR)/赤外顕微鏡

報告書データ / Report

概要（目的・用途・実施内容）/ Abstract (Aim, Use Applications and Contents)

The increase in the use of 3D printers in orthodontic treatment, and the expectation of a further increase in the future, has raised concerns about the environmental impact due to the disposal of 3D printing resin materials, which are mostly derived from petroleum resources. In response, this study aims to develop 3D printable polymer materials from environmentally friendly biomass and biodegradable raw materials, and to investigate the possibility of using sustainable materials in 3D printing in dentistry. 

実験 / Experimental

Epoxidised soya oil acrylate and epoxidised soya oil methacrylate were synthesized and used as the base materials, alongside tetrahydrofurfuryl methacrylate (THFMA) and isobornyl methacrylate (IBOMA) serving as diluents. Phenylbis-2,4,6-trimethylbenzoylphosphine oxide (BAPO) was utilized as a photoinitiator to synthesize four different light-curing resins. Test specimens were prepared from these synthesized resins and were compared against four dental 3D printing materials. The specimens underwent Fourier Transform Infrared Spectroscopy (FTIR), nanoindentation tests, and scanning electron microscopy (SEM) observations.

結果と考察 / Results and Discussion

A comparison of the FTIR spectra of the epoxidised soya oil-based resin before and after curing revealed a decrease in the peak corresponding to the carbon double bond. This confirmed that the resin network formation occurs in a manner similar to that of commercially available materials. The nanohardness of the resin composed of synthesized epoxidised soya oil methacrylate and IBOMA was found to be 0.19 GPa, which is comparable to that of the commercial materials. Among the two diluents, the resin containing IBOMA exhibited higher values of nanohardness and modulus than the resin with THFMA, which can be attributed to the higher stiffness of IBOMA.

図・表・数式 / Figures, Tables and Equations

その他・特記事項（参考文献・謝辞等） / Remarks(References and Acknowledgements)

Guit J, Tavares MBL, Hul J, et al. Photopolymer resins with biobased methacrylates based on soybean oil for stereolithography. ACS applied polymer materials. 2020;2(2):949-957.

成果発表・成果利用 / Publication and Patents

論文・プロシーディング（DOIのあるもの） / DOI (Publication and Proceedings)

口頭発表、ポスター発表および、その他の論文 / Oral Presentations etc.

特許 / Patents

特許出願件数 / Number of Patent Applications：0件
特許登録件数 / Number of Registered Patents：0件