Effect of magnetic field on human body

磁场对人体的影响

基本信息

批准号：
10671851
负责人：
NAGASAWA Tooru
金额：
$ 1.73万
依托单位：
Asahi University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 1999
项目状态：
已结题

项目摘要

Magnetism is used in most of the mandibular movement recording systems, one study is to analyze whether the magnetic attachment would affect the data of the measurement. Sirognathograph was used as the mandibular movement recording system, the magnetic attachments were fixed in bilateral canines of adults. As results, although the variables of lateral movement were somewhat changed, the data changes of vertical movement which more often used in practice were not found.Whether the blood flow in oral cavity affected by the magnetic attachment was discussed. With the non-contact blood floweret to avoid the changes of blood flow caused by the touch of the probe to mucus membrane, the effects of the distance and angle between the probe and tissue were investigate. It was clear that the blood flow was not changed with different distances and angles.The magnetic attachment was set on the palatal membrance beside the upper fist molar assume a condition that a magnetic attachment was used in oral cavity. Without keeper, the blood flow was slower temporarily and went back normal after 3 minutes. A same result was found when set in a dummy without the keeper. In clinic, the change of mucus membrance blood flow beside canine was not found when a patient set on a magnetic over denture. It was because that the magnetic force could not leak out with the keeper.Moreover, after measuring the IL-8, which affects the proliferation of the gingival epithelial cell and is one of the inflammatory cytokine, it was clear that the magnetic attachment was safe and could not cause the inflammation of gingiva.

磁性用于大多数下颌运动记录系统，一项研究是分析磁性附着是否会影响测量数据。 Sirognathograph被用作下颌运动记录系统，磁性附着固定在成年人的双边犬中。作为结果，尽管横向运动的变量有所改变，但未找到在实践中经常使用的垂直运动的数据变化。无论是在口腔中是否会受到磁性附着的影响。使用非接触式的血液花，以避免探针触摸对粘膜的接触引起的血流变化，研究了探针和组织之间的距离和角度的影响。显然，没有不同的距离和角度改变血流。磁性附着在上拳摩尔旁边的pa膜上设置，假定在口腔中使用磁性附着的条件。没有门将，暂时的血液流量较慢，并在3分钟后恢复正常。在没有门将的假人中设置在假人中时也会发现相同的结果。在诊所中，当患者对义齿上的磁性进行磁性时，找不到猪膜血流的变化。这是因为磁力无法用守门员泄漏。此外，在测量IL-8之后，它影响了牙龈上皮细胞的增殖，并且是炎症细胞因子之一，很明显，磁性附着是安全的，并且无法引起金吉瓦的炎症。