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首页> 外文期刊>Journal of Clinical and Diagnostic Research >Estimation of Release of Nickeland Chromium by Indian MadeOrthodontic Appliance in Saliva
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Estimation of Release of Nickeland Chromium by Indian MadeOrthodontic Appliance in Saliva

机译：印度制造的正畸器具在唾液中释放镍的铬的估算

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Introduction: With increasing use of Indian made orthodontic materials, need was felt to know nickel and chromium release from these material. Materials and Methods: This study was conducted on simulated appliances consisting of brackets (022??Roth, Modern orthodontics, Ludhiana, India), from second premolar to central incisor, buccal tube and 0.019×0.025- inch SS arch wires secured with SS ligatures. Immersion was done in artificial saliva. Samples were analysed to using Atomic Absorption Photospectrometer (GVC ScientificEquipment Pvt. Ltd Australia) at AES Laboratories (P) Ltd., Noida India on 1st, 7th, 14th and 28th day. Results: SPSS (ver 17, Inc., Chicago, Illinois, USA) was used toperform the statistical analysis. Descriptive statistics i.e. median and 25 and75 percentiles were used. Peak nickel release was on 7th day and subsequently declined over 14th and 28th day. The peak level of chromium concentration was on 14th day, which declined thereafter. Conclusion: Average daily release of nickel and chromium over a period of one month was 97.368 μg/day and 47.664 μg/day respectively. The estimated release rates were approximately 32% and 16% of the reported average daily dietary.
机译：简介：随着印度制造的正畸材料的使用越来越多，人们需要了解这些材料释放出的镍和铬。材料和方法：本研究是在模拟矫治器上进行的，该矫治器由托槽（022 ?? Roth，现代正畸，印度卢迪亚纳），从第二颗前磨牙到中切牙，颊管和用SS结扎固定的0.019×0.025英寸SS弓丝。浸入人工唾液中。第1天，第7天，第14天和第28天，使用位于印度诺伊达AES实验室（P）Ltd.的原子吸收光谱仪（GVC ScientificEquipment Pvt。Ltd Australia）对样品进行分析。结果：使用SPSS（美国伊利诺伊州芝加哥市的Ver 17公司）进行统计分析。使用描述性统计数据，即中位数以及25和75个百分位数。镍释放高峰在第7天，随后在第14天和第28天下降。铬浓度的峰值水平在第14天，此后下降。结论：一个月内镍和铬的日平均释放量分别为97.368μg/天和47.664μg/天。估计的释放率约为报告的平均每日饮食的32％和16％。

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