核桩冠修复是对残根、残冠固定修复的常用方法,目前大多采用直接法在口内制作,费时费力操作困难。自1997年始,我们利用红膏采用间接法制作桩核冠修复200余例,取得了满意的效果。现报告如下。 临床资料:材料:0.8不锈钢丝,红膏,藻酸盐印模材,超硬石膏,嵌体蜡。方法;①取印模制作石膏模型。患牙经过常规根管口制备后,局部隔湿吹干,用探针导入液体石蜡油,取烤软的红膏适量缠裹在2cm长不锈钢丝(钢丝表面磨成粗糙面)上,修整成长条形,趁其软化时插入根管内,稍加压力,以排除气泡并使红膏完全充满根管内,冷却后取出红膏并观察完整性。如有缺陷,可将红膏烤软后重新操作,直到 Nuclear pile crown repair is the common method of fixed repair of residual roots and residual crowns. At present, most of them are produced in the mouth by the direct method, which takes time and laborious operation. Since the beginning of 1997, we made more than 200 cases of post-core crown restoration using the indirect method of red paste, and achieved satisfactory results. The report is as follows. Clinical data: Material: 0.8 stainless steel wire, red paste, alginate impression material, super anhydrite, inlay wax. Method; ① take impression mold making plaster model. Tooth after conventional root canal preparation of teeth, the local moisture drying, with the probe into the liquid paraffin oil, take the right amount of baked soft red wrapped in 2cm long stainless steel wire (wire surface grinding rough surface), dressing growth Strip, while it softens into the root canal, a little pressure to remove the bubble and make the red full of root canal filling, remove the red paste after cooling and observe the integrity. If flawed, the red cream can be re-baked until soft