| 光固化树脂不同深度处的转化 |
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| 引用本文： | 王军,周平,施长溪. 光固化树脂不同深度处的转化[J]. 口腔材料器械杂志, 1997, 0(1) |
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| 作者姓名： | 王军 周平 施长溪 |
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| 作者单位： | 解放军359医院，解放军359医院，解放军359医院 212001 镇江，212001 镇江，212001镇江 |
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| 摘 要： | 测定两种可见光固化复合树脂不同深度处的双键转化度和显微硬度。结果表明,随着深度的增加,复合树脂的转化度和硬度逐渐降低。最大转化度和硬度不在树脂表面,而是在表层下0.5～1.0mm范围内。当深度增加至一定水平后,转化度的下降比硬度的下降更为迅速而明显。采用红外光谱法测得的转化度结果与显微硬度测量结果之间具有良好的相关性。与硬度法和红外光谱法相比,通常所用的“刮除法”大大高估了固化深度。
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| 关 键 词： | 复合树脂 固化深度 双键转化度 红外光谱 |
Conversion in Different Depths of Visible Light Cured Composite Resins |
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| Slomato-logical Dept. of No. Hospital of PLA,Wang Jun,Zhou Ping. Stomatological. Colledge of the Fourth Militharv Medical U-niversity,Shi Changxi. Conversion in Different Depths of Visible Light Cured Composite Resins[J]. Chinese Journal of Dental Materials and Devices, 1997, 0(1) |
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| Authors: | Slomato-logical Dept. of No. Hospital of PLA Wang Jun Zhou Ping. Stomatological. Colledge of the Fourth Militharv Medical U-niversity Shi Changxi |
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| Affiliation: | Slomato-logical Dept. of No. 359 Hospital of PLA,Wang Jun,Zhou Ping. Stomatological. Colledge of the Fourth Militharv Medical U-niversity,Shi Changxi |
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| Abstract: | Conversion degree of double bonds and microhardness in different depths of two visible light cured composites were inspected by means of the Fourier Transform infrared spectroscopy. The results showde that conversion degree and microhardness of visible light cured composites decreasde gradually with increasing depth or thickness of materials. The maximun conversion-de-gree and microhardness were within a scope of 0. 5 to 1. 0mm beneath the top. After the depth increased to a certain level, conversion degree decreased more evidently than micro-hardness. There was a good correlation between conversion degree result obtained by infrared spectroscopic technique and micro-hardness result. |
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| Keywords: | Composites Cure Depth Conversion Degree Infrared Spectroscopy. |
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