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该研究的目的是测定和比较用现磨制的银汞合金行根管倒充填术期间,术前术后人体血汞浓度的水平。 材料和方法 10例患者中,男性7例,女性3例。年龄27～69岁,平均45岁。选择病例的标准:患者有1个需作根尖切除和银汞倒充填的单根牙;年满18岁且健康状况良好;实验前一个月开始禁食鱼类和其它海产品;实验期间不改变吸烟量,因吸烟会增加汞的吸收;每日饮酒不超过31.1g(1盎司),因酒精可降低血汞浓度;不进行其它需涉及银汞的牙科治疗,不服用对
The purpose of this study was to determine and compare the levels of human blood mercury levels during preoperative and postoperative root canal filling and filling with freshly ground amalgam. Materials and methods 10 patients, 7 males and 3 females. Age 27 ~ 69 years old, average 45 years old. The criteria for selecting the case: The patient had 1 single tooth required for apical and achilles filling; aged 18 and healthy; well fish and other seafood started fasting one month prior to the experiment; during the experiment Changing smoking levels as a result of smoking increases mercury absorption; does not exceed 31.1g (1oz) per day because alcohol reduces blood levels of mercury; does not require any other dental treatment that involves amalgam,