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首页> 外文期刊>International Journal of Dental Sciences and Research >Scanning Microradiography: Measurement of X-ray Attenuation Coefficient of Fissure Sealants Containing Tin Methacryloxytri-n-butyltin (SnM) as Radio-opaquer
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Scanning Microradiography: Measurement of X-ray Attenuation Coefficient of Fissure Sealants Containing Tin Methacryloxytri-n-butyltin (SnM) as Radio-opaquer

机译：扫描显微射线照相术：测量含有锡甲基丙烯酰氧基三正丁基锡（SnM）作为不透射线的裂缝密封胶的X射线衰减系数

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Objective: Radio-opacity is a fundamental requirement for fissure sealants in order to be clearly visible radiographicallyand may be well differentiated from caries. Many attempts have been made to make resin based fissure sealants radio-opaque. Researchers achieved radio-opacity of the sealants by blending heavy metals as fillers into the polymeric matrix. Keeping the demerits of using heavy metals in view, a novel fissure sealant was developed by chemically incorporating Tin (Sn) in monomer of methacrylate. This study has been done to assess under scanning micro-radiography (SMR), the radiopacity of the indigenously prepared fissure sealants containing increasing amount of SnM until the consistency of the mix remains workable and clinically useful. Design: Experimental study. Place of study: Biophysical Lab Queen Mary University of London, United Kingdom. Methodology: An organo-tin compound – Methacryloxytri-n-butyltin (SnM) and Ethylene Glycol Dimethacrylate (EGDMA) in varying quantities were mixed to prepare fissure sealant indigenously. Camphorquinone (CQ) and N, N-Dimethyl-P-Toluidine (DMPT) were added to above mixture. The prepared sealants were polymerized in cuvettes and mounted on Scanning microradiography machine. The machine was run for 100 seconds repeatedly for 60 runs. Obtained results were processed and calculated in Microsoft Excel software. Results: It was observed that increasing the weight of Tin (Sn) content in a sealant increases the radio-opacity of the sealant but SnM more than 9.5 gm renders the material unworkable. Conclusion: This study will not only help in enhancing the radio-opacity of fissure sealants but also the radio-opacity of other clinical composite materials maybe enhanced by this method.
机译：目的：射线不透性是裂缝密封剂的基本要求，以便在射线照相中清晰可见，并且可以与龋齿区分开。已经进行了许多尝试来使树脂基裂缝密封剂不透射线。研究人员通过将重金属作为填料掺入聚合物基体中来实现密封剂的不透射线性。考虑到使用重金属的缺点，通过将锡（Sn）化学掺入甲基丙烯酸酯单体中，开发了一种新型的裂缝密封胶。这项研究已经完成，目的是在扫描微射线照相术（SMR）下评估含有增加数量的SnM的自产裂缝密封胶的射线不透性，直到混合物的稠度仍然可行并在临床上有用。设计：实验研究。研究地点：英国伦敦玛丽皇后大学生物物理实验室。方法：将有机锡化合物-甲基丙烯酰氧基三正丁基锡（SnM）和乙二醇二甲基丙烯酸乙二醇酯（EGDMA）混合在一起，以本地方式制备裂缝密封剂。将樟脑醌（CQ）和N，N-二甲基-P-甲苯胺（DMPT）加入上述混合物中。将制备的密封剂在比色杯中聚合，并安装在扫描微射线照相机上。机器重复运行100秒，运行60次。在Microsoft Excel软件中处理和计算获得的结果。结果：观察到，增加密封剂中锡（Sn）的重量会增加密封剂的射线不透性，但SnM大于9.5 gm会使材料无法使用。结论：本研究不仅有助于增强裂隙封闭剂的放射线不透性，而且可以通过这种方法增强其他临床复合材料的放射线不透性。

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