Synthese and application of highly efficient surface modifier bonded to dental material and tooth surface.

高效粘合牙科材料和牙齿表面表面改性剂的合成及应用。

基本信息

批准号：
06671931
负责人：
TERANAKA Toshio
金额：
$ 1.09万
依托单位：
Kanagawa Dental College
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1995
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06671931/
关键词：
Silane Coupling Agent Poly (fluoro) alkyl Silane Surface Modification Resin Composite Prevention of Contamonation Prevention of Plaque Accumulation プラーク付着防止シイランカップリング剤

项目摘要

The objectives of this research project were 1) to evaluate the effectiveness of the surface modifier (1H,1H,2H,2H-henicosafluorododecyl) trimethoxysilane (10F2S-3M) for the prevention of staining, 2) to improve the water resistance of the polysiloxane at the silica-resin interfaceface and 3) to demonstrate the plaque formation inhibiting ability and the plaque detachment efficacy of 10F2S-3M.The results obtained were as follows :1. Significant large contact angles were displayd on all specimens modified with 10F2S-3M compared with those of untreated ones irrespective of the immersing solutions and the storage periods. The contact angles of all groups were significantly decreased after storage, though remarkable increases were shown after ultrasonic cleansing of the experimental (surface modified) groups stored in tea extract and oil orange. Significant slow progres of staining of the treated groups was apparent compared with that of the control group. Although the stains adhering to t … More he treated specimens were easily removed by ultrasonic cleansing, the stains adhering to the untreated specimens were difficult to remove. Treatment with the surface modifier did not affect the surface hardness and roughness.2. The tensile bond strength of the resin composite to the glass surface treated with a mixture of 3-MPS and 20-40% of trifluoropropyl- and nonafluorohexyl-trimethoxysilane showed significantly high values compared with 3-MPS treated specimen. These mixed silanes demostnrated stable bond strength, excellent waterproofness and thermotensile resistance. Also the maximum value of the surface free energy was displayd at the concentration of 20-40% of trifluoropropyl- and nonafluorohexyl-trimethoxysilane.3. The amount of adhead bacteria on the modified glass surface was significantly less than the native one. The amount of detached bacteria from the PTFE and modified glass and resin composite was approximately 50% at the first 10w 10s ultrasonic cleansing, while the native ones showed approx. 30%. After the final cleansing, the remaining bacteria on the PTFE and modified glass and composite were less than 1%, while the native specimens showed 35-40%. 10F2S-3M significantly decreased the surface free energy of the glass and composite to a comparable state to the PTFE.From the results obtained in this research project, it was suggested that the surface modification of resin composite with 10F2S-3M may have a high preventive effect on contamination of restoration intraorally and was concluded that the modification of silica surface with a mixture of 3-MPS and trifluoropropyl- or nonafluorohexyl-trimethoxysilane should improve the water resistance of the polysiloxane at the silica-resin interface. Less

该研究项目的目标是 1) 评估表面改性剂（1H,1H,2H,2H-二十一氟十二烷基）三甲氧基硅烷 (10F2S-3M) 防止染色的有效性，2) 提高聚硅氧烷的耐水性在二氧化硅-树脂界面和3)证明10F2S-3M的斑块形成抑制能力和斑块脱落功效。所得结果如下： 1.与未处理的样品相比，所有经过10F2S-3M改性的样品均表现出显着的大接触角，无论浸泡溶液和储存时间如何，所有组的接触角在储存后均显着降低。尽管在对储存在茶提取物和油橙中的实验组（表面改性）进行超声波清洗后，显示出显着的增加，但与对照组相比，处理组的染色进展明显缓慢。虽然经过超声波清洗后的样品上附着的污渍很容易去除，但未经处理的样品上附着的污渍却很难去除，但对表面硬度和粗糙度没有影响。树脂复合材料与用 3-MPS 和 20-40% 三氟丙基三甲氧基硅烷和九氟己基三甲氧基硅烷的混合物处理的玻璃表面的粘合强度显示与 3-MPS 处理的样品相比，这些混合硅烷表现出稳定的粘合强度、优异的防水性和耐热拉伸性，并且在三氟丙基和 20-40% 的浓度下显示出表面自由能的最大值。九氟己基三甲氧基硅烷。 3．改性玻璃表面的附着细菌数量明显少于PTFE和改性玻璃及树脂上的附着细菌数量。在最初的 10w 10s 超声波清洗中，复合材料的细菌含量约为 50%，而原生样品的细菌含量约为 30%。最后一次清洗后，PTFE 和改性玻璃以及复合材料上的剩余细菌含量低于 1%，而原生样品的细菌含量约为 1%。 35-40%，10F2S-3M 显着降低了玻璃和复合材料的表面自由能，达到与 PTFE 相当的状态。根据本研究获得的结果。项目中，有人提出用10F2S-3M对树脂复合材料进行表面改性可能对口内修复体污染具有较高的预防作用，并得出结论：用3-MPS和三氟丙基-或九氟己基-三甲氧基硅烷的混合物对二氧化硅表面进行改性应提高聚硅氧烷在二氧化硅-树脂界面处的耐水性。