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作者研究目的为研究在豚鼠牙齿中充填的银汞合金经过17～28个月后,释出的汞是否会进入牙本质和牙髓;评价用复合树脂改性的玻璃离子做银汞合金衬底材料是否能阻止汞的渗透。 材料和方法:豚鼠麻醉后,用涡轮机和冷却剂在4只豚鼠的49颗后牙和尖牙上做Ⅰ类和Ⅴ类洞。3只豚鼠的35个洞用银汞充填,其中的26个洞用光固化玻璃离子粘固粉垫底,剩下的9个洞不垫底;第四只豚鼠的14个洞用复合树脂充填。观察17～28个月后,将豚
The aim of this study was to investigate whether mercury released into the amalgam filled in the guinea pig teeth after 17-28 months entered dentin and pulp. A silver-amalgam substrate was evaluated using composite resin-modified glass ions Whether the material can stop mercury penetration. Materials and Methods: After guinea pigs were anesthetized, Class I and Class V holes were made in 49 posterior teeth and canines of 4 guinea pigs using a turbine and a coolant. Thirty-five guinea pigs were filled with amalgam, and 26 of the guinea pigs were cured with light-cured glass ionomer cement and the remaining nine were not padded. The fourth guinea pig was filled with composite resin. After 17 to 28 months, the dolphin was observed