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。

• 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

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

本研究的目的是：1)评价表面改性剂(1H，1H，2H，2H-二十氟代十二烷基)三甲氧基硅烷(10F2S-3M)的防沾染效果，2)提高聚硅氧烷在硅树脂界面的耐水性，3)证明10F2S-3M的斑块形成抑制能力和斑块脱落效果。结果如下：1.与未处理的样品相比，10F2S-3M改性样品的接触角明显增大，无论浸泡溶液和储存时间如何。储藏后，各组的接触角均显著降低，但经超声波清洗后，实验组(表面改性)茶汁和油橙中的接触角显著增加。与对照组相比，各处理组的染色进展明显减慢。尽管附着在t…上的污渍经他处理的样品更容易通过超声波清洗去除，而附着在未处理样品上的污渍很难去除。表面改性剂处理不影响表面硬度和粗糙度。经3-MPS和20~40%三氟丙基和非氟己基三甲氧基硅烷的混合物处理后，树脂复合材料与玻璃表面的拉伸粘结强度明显高于3-MPS处理的样品。这些混合硅烷表现出稳定的粘结强度，优异的防水和耐热拉伸性能。当三氟丙基硅烷和非氟己基三甲氧基硅烷的浓度为20-40%时，表面自由能出现最大值。改性后的玻璃表面细菌数量明显少于天然玻璃。经10W、10s超声波清洗后，聚四氟乙烯和改性玻璃树脂复合材料中的细菌分离量约为50%，而天然细菌的分离量约为50%。30%。最后一次清洗后，聚四氟乙烯和改性玻璃及其复合材料上的细菌残留率不到1%，而天然样品上的细菌残留率为35-40%。10F2S-3M显著降低了玻璃和复合材料的表面自由能，达到与PTFE相当的水平。本研究结果表明，用10F2S-3M对树脂复合材料进行表面改性对口腔内修复体污染有很高的预防作用，并得出结论：用3-MPS和三氟丙基或非氟己基三甲氧基硅烷的混合物对二氧化硅表面进行改性可以提高硅树脂界面聚硅氧烷的耐水性。较少

项目成果

二瓶智太郎: "フッ化炭素鎖を含む表面改質剤の歯科への応用(V)-フィラー表面への応用-" 日本歯科保存学会誌春季抄録集. 38. 79 (1995)

Chitaro Nihei：“含氟碳链的表面改性剂在牙科中的应用 (V) - 填料表面的应用 -”日本保守牙科学会杂志春季摘要 38. 79 (1995)。

好野則夫: "フッ化炭素鎖を有するシランカップリング剤を用いた金属表面の改質" 材料技術研究会誌. 13. 55-59 (1995)

Norio Yoshino：“使用含氟碳链的硅烷偶联剂对金属表面进行改性”《材料技术研究会杂志》，13. 55-59 (1995)。

好野則夫: "フッ化炭素鎖を有するシランカップリング剤を用いた金属表面の改質" 材料技術. 13. 55-59 (1995)

Norio Yoshino：“使用具有氟碳链的硅烷偶联剂对金属表面进行改性”材料技术 13. 55-59 (1995)。

寺中敏夫: "Application of Newly Developed Surface Modifier to Dental Material" Bull Kanagawa Dental Coll. 22. 151-156 (1994)

Toshio Teranaka：“新开发的表面改性剂在牙科材料中的应用”Bull Kanakawa Dental Coll. 22. 151-156 (1994)

寺中俊夫: "Water and Oil Repellency of New Dental Surface Modifier" J.Dent.Res.73. 127 (1994)

Toshio Teranaka：“新型牙科表面改性剂的拒水性和拒油性”J.Dent.Res.73 (1994)。