Improvement of prothodontic resin composite containing nano-filler

含纳米填料的口腔修复树脂复合材料的改进

• 批准号: 13470417
• 负责人: ATSUTA Mitsuru
• 金额: $ 8.19万
• 依托单位: Nagasaki University, Graduate School of Biomedical Medicine
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13470417/
• 关键词: prothodontic composite resin; nano-composite resin system; nano-filler; centrifugal light-curing apparatus; 超微粒子; ナノコンポジット

1. Preparation of nano-composite resinThe filler of nano-composite resin is consisted of Al_2O_3, TiO_2, CeO_2, and SiO_2 which of mean particle size are 30 nm. This filler was treated with silane coupler, 4-META, and/or effective coupler for each metal oxide in ethanol solution.2. Development of centrifugal light-curing apparatus and preparation of specimensA centrifugal light-curing apparatus was developed and this unit is equipped with four halogen lamps of 150 W, glass tubes, and switches for rotation. The composite paste containing nano-filler was filled in the glass tube of height 30 mm, and then centrifuged by 1, 500 rpm for 90 min, followed by light-cured for 30 min with continuously rotation. The bulk rein composites at the bottom of the tubes were used for CAD/CAM composite block.3. Preparation of crown-shaped composite specimensPremolar composite crowns were manufactured from described-above bulk rein composites by CAD/CAM machine. A prosthodontic composite material was used as controls.4. Evaluation of fracture resistance using servo-controlled fatigue machineThe premolar composite crowns were luted on the master-abutment made of steel with resin luting cement, and followed by evaluated fracture resistance of the different composite crowns using servo-controlled fatigue machine. The fractured load of crowns made of highly filled nano-composite showed significantly highest values.

1.纳米复合树脂的制备纳米复合树脂的填料由Al_2O_3、TiO_2、CeO_2和SiO_2组成，平均粒径为30 nm。该填料用硅烷偶联剂、4-Meta和/或用于每种金属氧化物的有效偶联剂在乙醇溶液中处理。离心式光固化装置的开发和固化剂的制备开发了离心式光固化装置，该装置配备有四个150 W的卤素灯、玻璃管和旋转开关。将含有纳米填料的复合浆料填充在高度为30 mm的玻璃管中，然后以1，500 rpm离心90 min，接着在连续旋转下光固化30 min。管体底部的块体树脂复合材料用于CAD/CAM复合材料块体.冠状复合材料修复体的制备以上述树脂复合材料为原料，采用CAD/CAM技术制作前磨牙复合材料冠。以口腔修复复合材料作为对照.伺服疲劳试验机抗折性能的评价将前磨牙复合冠用树脂粘接剂粘接在钢制主基牙上，用伺服疲劳试验机评价不同复合冠的抗折性能。高填充纳米复合材料制作的冠的断裂载荷显示出显著的最高值。

项目成果

K.Yoshida, Y.taira, M.Atsuta: "Properties of opaque resin composite containing coated and silanized titanium dioxide"Journal of Dental Research. 80-3. 864-868 (2001)

K.Yoshida、Y.taira、M.Atsuta：“含有涂层和硅烷化二氧化钛的不透明树脂复合材料的特性”牙科研究杂志。

Yoshida K.: "Effect of two silane coupling agents, a bonding agent, and thermal cycling on the bond strength of a CAD/CAM composite material cemented with two resin"J Prosthet Dent. 85. 184-189 (2001)

Yoshida K.：“两种硅烷偶联剂、一种粘合剂和热循环对两种树脂粘合的 CAD/CAM 复合材料粘合强度的影响”J Prosthet Dent。

K.Yoshida, M.Tanagawa, M.Atsuta: "Effects of filler composititon and surface treatment on the charactristcs of opaque resin composites"Journal of Biomed Material Research(Appl Biomater). 58. 525-530 (2001)

K.Yoshida、M.Tanakawa、M.Atsuta：“填料组合和表面处理对不透明树脂复合材料特性的影响”生物医学材料研究杂志（Appl Biomater）。

Matsumura H et al: "Sear bond strength of resin composite veneering material to gold alloy with varying metal surface preparations"J Prosthet Dent. 86(3). 315-319 (2001)

Matsumura H 等人：“树脂复合贴面材料与具有不同金属表面处理的金合金的耐磨损强度”J Prosthet Dent。

Tanoue N, Atsuta M, Matsumura, H: "Inflence of laboratry light-curing unit variation on properties of prosthodontic composite materials"Dentistry Japan. 38. 55-58 (2002)

Tanoue N、Atsuta M、Matsumura、H：“实验室光固化装置变化对修复复合材料性能的影响”日本牙科。