Improvement of prothodontic resin composite containing nano-filler
Improvement of prothodontic resin composite containing nano-filler
批准号:
13470417
负责人:
ATSUTA Mitsuru
金额:
$8.19万
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
项目状态:
已结题
起止时间:
2001 至 2002
中文摘要
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。用硅烷偶联剂、4-META和/或有效偶联剂对乙醇溶液中的每种金属氧化物进行处理。研制了一种离心光固化装置,该装置配有4盏150w的卤素灯、玻璃管和旋转开关。将含纳米填料的复合浆料填充在30 mm高的玻璃管中,以1500 rpm离心90 min,连续旋转光固化30 min。2、采用管底块状rein复合材料作为CAD/CAM复合块。冠状复合材料的制备利用CAD/CAM机床将上述块状rein复合材料加工成齿形复合冠。采用复合修复材料作为对照。采用伺服疲劳试验机对前磨牙复合冠进行抗断裂性能评价采用树脂粘接水泥将复合冠固定在钢基台上,然后采用伺服疲劳试验机对不同复合冠的抗断裂性能进行评价。高度填充的纳米复合材料冠的断裂载荷最大。
英文摘要
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.
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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。
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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)。
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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。
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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。
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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。
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共 13 条
Development and charactarization of Ti alloys for dentistry
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批准号:11694293
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项目类别:Grant-in-Aid for Scientific Research (B).
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资助金额:$3.26万
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财政年份:1999
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负责人:ATSUTA Mitsuru
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依托单位:
Fracture Prevention of Esthetic Ceramic Crowns for Posterior Teeth
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批准号:11470418
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项目类别:Grant-in-Aid for Scientific Research (B).
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资助金额:$9.54万
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财政年份:1999
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负责人:ATSUTA Mitsuru
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依托单位:
Application of the gold alloy with age-hardning ability at 37゚C to resin-bonded fixed partial denture
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批准号:08457531
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项目类别:Grant-in-Aid for Scientific Research (B)
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资助金额:$5.57万
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财政年份:1996
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负责人:ATSUTA Mitsuru
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依托单位:
Clinical studies of the attrition in a new ceramic-resin composite for a fixed prosthesis
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批准号:05454531
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项目类别:Grant-in-Aid for General Scientific Research (B)
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资助金额:$4.1万
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财政年份:1993
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负责人:ATSUTA Mitsuru
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依托单位:
Dental Materials inherited anti-plaque adhesion
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批准号:60480424
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项目类别:Grant-in-Aid for General Scientific Research (B)
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资助金额:$4.1万
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财政年份:1985
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负责人:ATSUTA Mitsuru
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依托单位: